Swing Arm Research Articles

Bipedal DNA walker- CRISPR/Cas12a coupling with sulfur doped boron nitride–carbon nitride composite biosensing for the detection of miRNA-21

A novel photoelectrochemical (PEC) biosensor based on 2D–2D heterojunction S-BN/CN and dual-orbit three-dimensional (3D) bipedal DNA walker-synergized CRISPR/Cas12a signal amplification was fabricated for sensitive detection of miRNA-21. First of all, S-BN/CN, which sulfur was doped into boron nitride (BN) to construct heterojunction of 2D S-BN and 2D g-C3N4, was used as photosensitive materials to provide initial photocurrent, and combined methylene blue (MB) labeled hairpin DNA (MB-HP) as a signal probe. Secondly, after identifying the target miRNA-21, the two swing arms were simultaneously activated on two 3D orbits, cleaving along the orbit to output massive short single strand DNA (O-DNA) under the action of Nt.BsmAl endonuclease. Then trigger the trans-cleavage of CRISPR/Cas12a and cut off the hairpin DNA labeled with MB to achieve signal-off. The result showed that the proposed PEC biosensor had a good sensitivity for the detection of miRNA-21. It was a good linearity in the range of 10 fM - 100 nM, and the limit of detection was 3.98 fM (S/N = 3). The proposed PEC biosensor achieved sensitive detection with high specificity and low limit of detection for miRNA-21, while the rational design could be extended to achieve the detection of other targets.

Design and Analysis of an Adaptive Obstacle-Overcoming Tracked Robot with Passive Swing Arms

This paper presents a novel adaptive tracked robot equipped with passive swing arms for overcoming obstacles. First, the paper introduces the overall composition of the robot and focuses on the adaptive mechanism of the passive swing arms. Second, analyzing the single-step obstacle-overcoming process of the robot reveals the relationship between the obstacle height and the geometric parameters of the passive swing arms, establishing a kinematic model. Then, a dynamic model of the robot’s obstacle-overcoming process is established by simplifying the robot into a crank–slider linkage, and the time range for the robot to overcome obstacles is analyzed. Finally, through virtual simulation and a physical prototype, the feasibility and maneuverability of the robot’s design are verified. These findings demonstrate the potential of the robot in various applications, such as search and rescue missions and homeland security.

Research on Propagation Characteristics of Tire Cavity Resonance Noise in the Automobile Suspension

Tire cavity resonance noise (TCRN) is one of main contributors to vehicle interior noise, which has long been a concern in the automotive industry and academia. As suspension is crucial for the propagation of TCRN energy into the vehicle, the propagation characteristics of energy in automobile suspension is studied in this research. Firstly, the finite element model of a McPherson suspension system connected to an aluminum alloy wheel with a Y-shaped spoke was established. Then, a modal analysis and response calculations of the McPherson suspension system connected to the aluminum alloy wheel with a Y-shaped spoke were carried out. Finally, the propagation characteristics of TCRN in the McPherson suspension system connected to the aluminum alloy wheel with a Y-shaped spoke were studied and analyzed by the power flow method under different working conditions. The power flow output via the lower arm front bushing was the largest, while the output via the rear bushing was the smallest in the Y-spoke aluminum alloy wheel and suspension system. The areas in the suspension system with high stress are located at the steering knuckle, lower swing arm, and shock absorber. Therefore, study of the propagation characteristics can provide a basis for a McPherson suspension system design.

The Analysis of Stiffness and Driving Stability in Cross-Member Reinforcements Based on the Curvature of a Small SUV Rear Torsion Beam Suspension System

Most small SUVs in the automotive market are equipped with torsion beam suspension for the rear wheels. Torsion beam suspension consists of a cross-member and a trailing arm. The cross-member plays a crucial role in preventing the vehicle from twisting; therefore, a shape that can withstand loads is essential. In this study, various shapes of cross-member reinforcements were added to the existing torsion beam suspension to analyze its structural strength when subjected to arbitrary forces. Analysis results were obtained for stiffness and driving stability factors such as smooth road shake, impact hardness, and memory shake. Based on these results, we identified the optimal cross-member shape with low torsional stiffness and a small side view swing arm angle by examining the changes in driving stability.

On the design and structural study of a rear swing arm for an electric bike

As electric bikes continue to grow in popularity, it is important to ensure that they are equipped with well-designed components. One such component is the rear swing arm (RSA). This study deals with the design and structural analysis of an RSA used for electric bikes. This RSA is composed of two swing arms (one on each side of the bikes), a yoke, a suspension block, and bolts or screws. First, an analytical approach was developed to calculate the initial values for the width and shape of the swing arm. Next, experimental data were used to analyze the response of the RSA and determine the final profile for the swing arms and yoke structure. Finally, the finite element approach was implemented to assess the stress, displacement, and fatigue responses of the RSA when subjected to realistic excitations and conditions. The initial results depicted the following characteristics for the RSA: C-channel profile, 43 mm height, and 2 mm wall thickness. These results implied that the maximum shear force would occur in a region representing approximately 15.5% of the total length of the RSA. Further analysis and calculations showed that this region would decrease to approximately 2.85% of the total length of the RSA. For the final design, the mechanical performance of the RSA was observed to remain acceptable despite the relatively high Von Mises stress values around these singularities. This study assumed the use of 7075 T651 aluminum alloy as the primary material for the RSA.

Programming DNA walker and DNA tetrahedral nanostructures mediated CRISPR/Cas12a electrochemiluminescence biosystem and its biosensing application

A CRISPR/Cas12a electrochemiluminescence (ECL) biosensor based on the multiple sites DNA walker with controlled swing arm position, integrating Tribulus terrestris-like AuCu nanoterrestris (AuCu NTs) and DNA tetrahedral nanostructures (DTNs) is constructed for ultrasensitive detection of miRNA-21. The AuCu NTs was served as a co-reaction accelerant to promote the reduction of S2O82- at the cathode, which can be rapidly converted with S2O83•- and significantly enhance the ECL signal from graphitic carbon nitride nanosheets. Meanwhile, by virtue of the excellent stability of DNA tetrahedral nanostructure, the binding efficiency between single strand DNA and luminescent materials was improved. Afterward, DNA walker signal amplifier converted and amplified the target miRNA-21 into transitional DNA under the activity of Nt.BsmAI nicking endonuclease, thereby activating trans-cleavage ability of CRISPR/Cas12a and achieving the efficient annihilation of ECL signals was employed. As a proof of concept, the as-constructed biosensor demonstrated well specificity and sensitivity towards miRNA-21 with the range of 1.0 fM to 10 nM and the detection limit was 0.339 fM (S/N = 3). Therefore, the proposed strategy expanded the scope of application of CRISPR/Cas12a and demonstrated potential of diagnostic analysis.

An electrochemiluminescence sensing platform combining entropy-driven amplification strategy and inverted DNA tetrahedral nanomachines for detecting SARS-CoV-2 specific gene

In this work, we propose a Ti3C2Tx-based electrochemiluminescence (ECL) sensing platform, combined with a programmable entropy-driven cycling strategy and inverted DNA tetrahedral nanomachines to detect the SARS-CoV-2 RdRp gene. The use of Ti3C2Tx in the ECL sensing platform provides unique advantages that improve the assay's sensitivity. Firstly, the SARS-CoV-2 RdRp gene triggers an entropy-driven cyclic amplification reaction to obtain a large number of Output strands. Subsequently, the Output strand reacts with an inverted DNA tetrahedral swing arm strand to start the self-driven process. Finally, the ferrocene (Fc)-labeled hairpin DNA strand of the inverted DNA tetrahedron is severed to achieve the signal change. Under optimal conditions, the ECL platform integrated with entropy-driven cycle amplification reaction and inverted DNA tetrahedral nanomachines obtained a wide range of 100 aM to 10 nM and a limit of detection (LOD) of 48.3 aM for the SARS-CoV-2 RdRp gene. Moreover, the recovery rates of 97% to 103.3% and 98.34% to 103% were obtained in real environments and human pharyngeal swabs, respectively. This ECL sensing platform, which combines an entropy-driven cycle amplification reaction and inverted DNA tetrahedral nanomachines, opens up new opportunities for the detection of other substances.

Kinematic analysis and process optimization of root-cutting systems in field harvesting of garlic based on computer simulation technology.

Root cutting is an important process in garlic field harvesting but is the weakest link in the full mechanization of garlic production. To improve the current situation of technological backwardness and poor operational quality of mechanized garlic root-cutting in the main garlic-producing regions of China, this study combined the physical characteristics and agronomic requirements of garlic plants, and proposed an innovative floating root-cutting technology for garlic combine harvesters that enables the top alignment of bulb, adaptive profiling floating of cutter, and embedded cutting of roots. Through the kinematic analysis of the floating cutting process, the coordinate equations of the initial contact point of the bulb, the mathematical model of the floating displacement of the cutting component. Using computer simulation techniques, the dynamic simulation study of the floating cutting process was carried out in the rigid-flexible coupling numerical simulation model of root-cutting mechanism and garlic plant. The influence law of garlic conveying speed, extension spring preload force and stiffness on the floating displacement of the cutting component and the angular velocity of swing arm reset and its formation causes were analyzed by a single-factor simulation test. The key operating parameters of the root-cutting mechanism were optimized through the computerized virtual orthogonal test and fuzzy comprehensive evaluation. The significance of the factors affecting the floating cutting performance decreased in the following order: extension spring preload force, garlic conveying speed and extension spring stiffness. The optimal parameter combination of the root cutting mechanism obtained from the optimization were as follow: extension spring preload force was 16 N, garlic conveying speed was 0.8 m/s, and extension spring stiffness was 215 N/m. Tests conducted with the optimal parameter combination yielded a root excision rate of 92.72%, which meets the requirements of Chinese garlic field harvesting quality. This study provides computer simulation optimization methods for the optimal design of the root-cutting mechanism, and also provides technical and equipment support for the full mechanization of garlic production in China.

Installation of gussets to reduce stress on the junction between the arm and bridge on the swing arm

The swing arm is one of the main components of a motorcycle that functions as a connection between the rear wheel and the frame. Under loading conditions, the joint area between the arm and the bridge experiences significant stress, leading to fractures in that region. This study aims to investigate the effectiveness of installing gussets to reduce the stress that occurs at the joint area between the arm and the bridge in the swing arm of ELGO electric motorcycles. The research was conducted using the static analysis simulation method with Solidworks 2021-2022 Research License software. The loading conditions were simulated based on the actual usage of the electric motorcycle. The simulation results revealed that without the installation of gussets, the joint area between the arm and the bridge in the swing arm experienced stress exceeding the yield strength of the material. This would inevitably lead to the breakage of the swing arm and potentially cause accidents for motorcycle riders. However, after the gussets were installed, the stress at the joint area between the arm and the bridge remained below the yield strength of the material. Based on these findings, it can be concluded that the installation of gussets successfully reduced the stress at the joint area between the arm and the bridge in the swing arm. This research outcome can serve as a reference for the design of swing arms for electric motorcycles.

Modeling and validation of a novel tracked robot via multibody dynamics

AbstractThis article focuses on a multibody model of a new passive articulated suspension tracked robot. The model of the vehicle is developed using the multibody software MSC Adams (acronym for automatic dynamic analysis of mechanical systems) in conjunction with the Adams Tracked Vehicle toolkit. The various subsystems that make up the vehicle assembly are described, with particular attention to the modeling strategies of the swing arms that constitute the suspension system and the characterization of the track belt. The multibody model allows the system performance to be evaluated in advance for fine-tuning of the design parameters and using different configurations, for example, with active and locked suspension. Efforts are also presented to validate the multibody twin against the real prototype, showing a good agreement with field experiments. Once validated, the digital twin is used to assess the performance of the innovative suspension system in various challenging environments.

A disposable electrochemiluminescence biosensor sensitized with multipedal DNA walker for in situ quenching detection of DNA methylation

Herein, a disposable electrochemiluminescence (ECL) biosensor sensitized with target-triggered multi-DNA release and multipedal DNA walker was designed for in situ quenching detection of methylated target DNA. In this work, zirconium(IV)-based metal organic frameworks encapsulated with Ru(bpy)32+ emitter (UiO-66-NH2@Ru) were attached onto indium tin oxide (ITO) electrode as sensing substrate. With the assistance of magnetic bead separation, one methylated DNA released three kinds of DNAs, achieving a one-to-multiple signal transduction and amplification. Then, these multi-DNA strands hybridized with swing arm immobilized on ITO surface as DNA walking strands. The further hybridization between multi-DNA strands and DNA tracks resulted in the formation of cleavage sites, which were digested by a restriction endonuclease, causing the cleavage of DNA tracks into two short fragments. Subsequently, the dissociated DNA walking strands explored adjacent DNA tracks, and the multipedal walking procedure was conducted. Relying on the in situ quenching of H2O2 for ECL emission of Ru(bpy)32+ system, this method achieved the quantification of methylated target DNA. Moreover, taking the advantages of inexpensiveness, high walking kinetics, great amplification efficiency, good reproducibility and practicability, this disposable biosensor held great potential for analyzing DNA methylation levels in resource-limited environments.

The interaction between droplets and the vortex ring after a shock wave

To elucidate the characteristics of droplet breakup induced by a shock wave and vortex ring behind the shock, experiments were conducted with water and various glycerol mixtures under different shock Mach numbers. High-speed visualization system, pressure testing system, and laser particle analyzer were applied to record the interaction process between droplets and a vortex ring after a shock wave. The results show that two stages of interaction are identified, including droplet-shock wave interaction and droplet-vortex ring interaction. Small clusters of droplets separated from the mother droplet will exhibit “white dot” and “swing arms” structures when subjected to vortical flow. At high shock Mach numbers, which generate strong circulation, the centrifugal force from rotation will cause droplet deformation and fragmentation. However, droplets with higher viscosity impede the stretching effect of the vortical flow, resulting in less deformation and fragmentation. Our data could provide valuable insights into droplet breakup in internal combustion engines and other industrial operations.

High-Precision Measuring System for Internal Deformation Monitoring Pipeline of Rockfill Dams: Design and Validation

The monitoring of internal deformation in rockfill dams using pre-buried flexible pipelines is a promising technique; however, achieving precise measurements over a long-range pipeline is crucial and challenging. In this paper, we present a high-precision pipeline measuring system for monitoring internal deformation in rockfill dams, which can simultaneously measure the pipeline centerline and cross-section geometry. The system leverages the inertial measurement principle to perform positioning by fusing an inertial measurement unit (IMU) with odometers. It utilizes a Kalman filter and Rauch-Tung-Striebel (RTS) smoothing to estimate the optimal 3D curves of the pipeline. The pipeline’s inner diameter is measured using three wheel swing arms and a set of load-bearing wheels, and the pipeline cross-section geometry is fitted using a direct least-square ellipse fitting approach. Finally, we validated the measuring system through both model and on-site experiments and compared the measurements with the Leica AT-960LR absolute tracker and hydraulic overflow settlement gauge. The results indicate that the measuring system has excellent accuracy for measuring pipeline curves and deformation, and the settlement trend is consistent with the hydraulic overflow settlement gauge. We also assessed the cross-section deformation of the deformation monitoring pipeline in the Lianghekou dam for six months, and the results showed that if deployed in strict accordance with the design requirements, the monitoring pipeline buried inside the rockfill dam would not deform significantly. These findings provide a tremendous incentive for the continued development of rockfill dam internal deformation monitoring.

3D dynamic DNA walker traveling on DNA micelles coupled CRISPR-Cas12a nucleases to recover electrochemiluminescence signal for microcystin-LR detection

3D dynamic DNA walker traveling on DNA micelles coupled CRISPR-Cas12a nucleases sensor was proposed to recover electrochemiluminescence (ECL) signal for microcystin-LR (MC-LR) detection. The 3D DNA walker was anchored in DNA micelles, self-assembled from amphiphilic DNA by the hydrophobicity of cholesterol and the electrostatic repulsion of the phosphate backbone. By the MC-LR stimulus, the released swing arm DNA hybridized with the track DNA while cleaving the hairpin structure to obtain the track DNA fragments. The track DNA fragments hybridized with the H1 hairpin structure to form a double-helix structure with PAM sequences, which could activate the Cas12a nucleases for trans-cleavage of the Fc probe-labeled ssDNA to induce ECL signal recovery. The DNA micelles maintained the morphological stability and free diffusion ability of the 3D DNA walker in the biofluidic state and overcome the collisional hindrance for facilitating efficient intraparticle and interparticle walking motions. Meanwhile, the coupled trans-cleavage activity of Cas12a nucleases improved the signal-amplification performance and achieved higher sensitivity with a detection limit of 0.015 pM. Acceptable results confirmed the ability of DNA micelles to stabilize 3D DNA walkers and the validated cleavage activity of Cas12a nucleases.

Reconfigurable wheel-crawler-integrated walking mechanism design and kinetic analysis

PurposeThis study aims to the complex and unpredictable terrain environment of the Qinghai-Tibet Plateau scientific research station, such as cement road, wetland, gravel desert, snowfield, ice surface, grassland, slimy ground, steep slope, step, etc., a reconfigurable walking mechanism based on two movement modes of wheel and triangular crawler was proposed.Design/methodology/approachBy analyzing the deformation mechanism of the walking mechanism, a reconfigurable wheel-crawler-integrated walking mechanism and the configuration scheme are designed. The analysis of the kinematics and mechanical properties of the swing arm system and the deformation mechanism of the walking mechanism.FindingsThe reconfigurable wheel-crawler-integrated walking mechanism can be switched between the wheel and triangular crawler modes by driving the deformation mechanism. Through the numerical simulation of its movement process, and the trial production and experiment of the prototype, indicates the validity of the reconfigurable wheel-crawler-integrated walking mechanism design.Originality/valueThe work of this paper provides a reconfigurable wheel-crawler-integrated-walking mechanism, which can be used by robots in the Qinghai-Tibet Plateau scientific research station. It has excellent reconfigurability and can effectively improve the robot’s adaptability to complex terrain.

3-D DNA walker-mediated ultrasensitive dual-signal biosensor for HIV DNA detection

Here, we successfully designed a dual-signal sensing system based on 3-D DNA walker signal amplification and target recycling amplification strategies for ultrasensitive determination of the human immunodeficiency virus（HIV）DNA. The DNA walker is constructed by locked swing arm and track strand onto the surface of the magnetic beads (MBs). After adding HIV DNA, the swing arm was activated to hybridize with the track strand to form ds-DNA, which could be cleaved by Exonuclease III (Exo III) to release G-quadruplex. Subsequently, hemin combined with G-quadruplex to construct DNAzymes, which catalyzed the oxidation of o-phenylenediamine (OPD) into the yellow product 2,3 diaminophenazine (DAP), resulting in the fluorescence quenching of MoS2 QDs at 420 nm, and the fluorescence enhancement of DAP at 560 nm. Therefore, the amounts of HIV DNA can be detected by Uv-vis absorbance and fluorescence dual-signal changes. Besides, each swing arm cleaved multiple track strands to amplify the signal, while the target recycling amplification was also in progress. Such double-amplified signal strategy not only provided excellent sensitivity and selectivity, but also realized magnetic separation, eliminating interferences in complex samples. In addition, our designed sensing platform can detect different DNAs by adjusting the recognition sequence, providing a general strategy for various virus analysis.

Fundamental abrasive contact at high speeds: Scratch testing in experiment and simulation

The understanding and experimentation of abrasive wear mechanisms at high speeds is still poorly investigated in literature. This is mainly due to a lack of suitable, well-instrumented test rigs for fundamental, single abrasive wear events. Standard scratch tests, which are often utilized for studies of abrasion phenomena, operate in the low-speed range up to some mm/s, while applications suffering from abrasive wear often operate at speeds exceeding 1 m/s (e.g., rolling, grinding, machining).Numerical approaches, especially particle-based methods, allow the simulation of such fast deformation processes, but rely on hardening models that require a precise knowledge of material parameters. Thus, the Johnson-Cook material model was parametrized using data from high-speed compression tests of pure aluminum. A series of scratch tests with increasing depths were then simulated using the particle-based Material Point Method (MPM). Experimentation was done on a pendulum scratch test rig equipped with a Rockwell C diamond cone. By adjusting the balance point of the swing arm of ∼1 m length, a velocity of 6.8 m/s was achieved at its tip as measured with a high-speed camera. Scratches of several depths were performed, and their force signals acquired. Post-test analyses comprised topography measurements and EBSD on cross-sections of the scratches to investigate the microstructural changes due to the high-speed wear event.Scratch topographies and abrasive mechanisms compared favorably between experiment and simulation for the aluminum. The extent of strain hardening was significantly reduced compared to low-speed experiments. The calibration of the high-speed force sensor was successful and now allows the investigation of new alloys and determination of material parameters under high-speed abrasive conditions.

Enhancing Multistep Reactions: Biomimetic Design of Substrate Channeling Using P22 Virus-Like Particles.

Many biocatalytic processes inside cells employ substrate channeling to control the diffusion of intermediates for improved efficiency of enzymatic cascade reactions. This inspirational mechanism offers a strategy for increasing efficiency of multistep biocatalysis, especially where the intermediates are expensive cofactors that require continuous regeneration. However, it is challenging to achieve substrate channeling artificially in vitro due to fast diffusion of small molecules. By mimicking some naturally occurring metabolons, nanoreactors are developed using P22 virus-like particles (VLPs), which enhance the efficiency of nicotinamide adenine dinucleotide (NAD)-dependent multistep biocatalysis by substrate channeling. In this design, NAD-dependent enzyme partners are coencapsulated inside the VLPs, while the cofactor is covalently tethered to the capsid interior through swing arms. The crowded environment inside the VLPs induces colocalization of the enzymes and the immobilized NAD,which shuttles between the enzymes for in situ regeneration without diffusing into the bulk solution. The modularity of the nanoreactors allowsto tune their composition and consequently their overall activity, and also remodel them for different reactions by altering enzyme partners. Given the plasticity and versatility, P22 VLPs possess great potential for developing functional materials capable of multistep biotransformations with advantageous properties, including enhanced efficiency and economical usage of enzyme cofactors.

Self-Sufficient Reusable Biocatalytic System Outfitted with Multiple Oxidoreductases and Flexible Polypeptide-Based Cofactor Swing Arms

Oxidoreductases are widely used in value-added chemical synthesis. Since many oxidoreductases require the consumption of expensive cofactors, multi-enzyme cascade reactions, including cofactor regeneration, have been developed. Although enzymes are frequently immobilized for industrial processes, the immobilization of the small molecule cofactor is challenging. Here, we demonstrate that the co-immobilization of a swing arm cofactor and multiple oxidoreductases can overcome these cofactor limitations. We chose a very flexible protein, elastin-like polypeptide (ELP), fused to a strep-tag II as a genetically encoded swing arm. The Escherichia coli expressed and purified swing arm was conjugated with NAD+ to generate a cofactor swing arm (ELP-NAD+). The cofactor swing arm was co-immobilized on a streptavidin resin with two oxidoreductases fused to a strep-tag II: glucose dehydrogenase (GDH) and mannitol dehydrogenase (MDH). We observed a substantial d-mannitol production (about 1.6 mM) in the three-component (GDH, MDH, and ELP-NAD+) co-immobilized microreactor. The three-component co-immobilized system showed 2 and 3 times higher d-mannitol production than the one with free three components and another with the immobilized enzymes and free cofactor, respectively. Moreover, the product could be easily separated from the co-immobilized reactor and the activity was retained when applied for repeated batch reactions (> seven cycles). These results demonstrate that the genetically encoded cofactor swing arm can be stably co-immobilized with multiple oxidoreductases on a solid support and it can maintain reactivity as a cofactor because of the flexible ELP swing arm.

Optimization of rock cutting process parameters with disc cutter for wear and cutting energy reduction based on the discrete element method

The significance of the study is that the analysis of cutting performance and parameter optimization of the disc cutter can effectively improve the service life of the tool and reduce the cutting energy consumption. The method of the study is as follows: The numerical model based on the discrete element method was developed for rock cutting. The validation experiment was carried out to prove the reliability of the numerical model. The effect of swing arm speed, spindle speed and cutting depth on the wear, cutting specific energy and broken rock volume of the disc cutter was analyzed. The prediction models of cutting wear and cutting specific energy were established based on the response surface method, and the parameters were optimized. The validation experiment was carried out with the obtained optimal parameters as experimental conditions. The experiment verifies the reliability of the disc cutter wear and energy consumption optimization models. The conclusion is as follows: The cutting depth has the greatest effect on the wear of the disc cutter, followed by the spindle speed, while the swing arm speed has the least effect on the wear of the disc cutter. With the increase of the swing arm speed and cutting depth, the wear of the disc cutter increases. The maximum cutting wear can reach 4.75 mm and 5.03 mm. The average cutting wear can reach 2.57 mm and 2.29 mm. With the decrease of the spindle speed, the wear of the disc cutter increases, and the maximum wear and average wear can reach 4.71 mm and 2.30 mm. The increase of swing arm speed and cutting depth can improve cutting efficiency, but excessive swing arm speed and cutting depth will increase the wear and reduce the tool life. The swing arm speed has the greatest influence on the cutting specific energy, followed by the spindle speed, while the cutting depth has the least influence on the cutting specific energy. As the swing arm speed increases, the energy consumption of cutting becomes larger. The increase of the swing arm speed can improve the cutting efficiency, but the excessive swing arm speed will increase the energy consumption. With the increase of spindle speed, the rock cutting efficiency of the disc cutter becomes larger, and the energy consumption first decreases and then increases. Too small spindle speed will aggravate the energy consumption. The maximum cutting specific energy can reach 29.85 MJ/m3. When the swing arm speed v = 5 mm/s, the spindle speed n = 99 r/min and the cutting depth h = 14 mm, the wear and energy consumption of the disc cutter are minimal at the same time, which shows that the cutting performance of the disc cutter is better. The average wear and cutting specific energy of the disc cutter after parameter optimization are 1.64 mm and 17.59 MJ/m3, respectively. The conclusion of the study is that the experiments have verified the reliability of the discrete element disc cutter rock cutting analysis model, which can simulate the disc cutter cutting process more accurately. The optimization model is reliable, and the wear and energy consumption of the disc cutter are minimal at the same time after the optimization analysis, which provides a theoretical reference for improving the service life of the disc cutter and reducing the cutting energy consumption.