Analysis Of Crankshaft Research Articles

Investigations on multi cylinder four stroke diesel engine’s crankshafts with different materials

A crankshaft consists of several cranks and crank pins connected in series with the connecting rod to an engine which works on crank mechanism. Moreover, crankshaft is a mechanical part which converts reciprocating motion to rotational motion and vice - versa. In this project, an attempt is made to study the static behaviour fatigue life, damage and factor of safety was determined using structural analysis. A three-dimensional model of the multi cylinder four stroke diesel engine crankshafts was created. Various materials like Mg alloy AZ31, EN8 BS970 (008M40), Cu-Be alloy C17200, Titanium alloy Ti6Al4V, Al alloy 7068 were chosen for this study based on the working conditions and mechanical properties of forged steel to enhance the properties of the crankshaft. To determine the variation of stress magnitude at critical locations, the finite element analysis is done on the crankshaft. The crankshaft analysis was performed with suitable load and boundary conditions, with the static analysis, Von-mises stress induced in the crankshaft is compared with different chosen materials and deformations were also discussed. The results obtained from analysis will give a theoretical foundation for improvement and optimization of crankshaft, which reveals that titanium alloy (Ti6Al4V) has shown better strength and low deformation than the cast iron.

Design & Analysis of Crankshaft by ForgedSteel & Composite Material

Design & Analysis of Crankshaft by ForgedSteel & Composite Material

Design and Analysis of Crankshaft for Internal Combustion Engine

Design and Analysis of Crankshaft for Internal Combustion Engine

Design and Analysis of Crankshaft Used in Aerospace Applications and Comparision Using Different Materials.

Design and Analysis of Crankshaft Used in Aerospace Applications and Comparision Using Different Materials.

Static structural analysis of crankshaft for single cylinder camless engine

The crankshaft is a complex component, and as such, the influence of its geometric parameters on stresses seen under service loads is not well understood. The objectives of this work is to investigate the effects of a wide range of geometric parameters on stresses in crankshafts, to find correlation between results and to formulate simple methods of predicting peak stress levels: It is intended to achieve this by use of fatigue method. Analyses are carried out in 2D and 3D, making use of symmetry as far as possible. Variations in stresses are plotted over a wide range for each of the parameters. The analysis methods give accurate results for stress analysis of crankshafts and offer several advantages over traditional experimental techniques; they are ideally suited to parametric analyses, can be carried out relatively quickly, results are repeatable because boundary conditions can be exactly defined, and the cost of analysis is significantly reduced.The analysis is carried out in ANSYS for crankshaft along for single cylinder camless engine.

Modal Analysis of Crankshaft for Two-Stroke Marine Diesel Engine Based on Block Lanczos Method

Modal analysis of crankshaft for two-stroke marine diesel engine is carried out on the block lanczos method. The finite element models of crankshaft is created in ANSYS. The crankshaft first 13 natural frequencies and mode shapes are shown as the result and lay the foundation for optimal design of the crankshaft and dynamic response.

Dynamic Characteristic Analysis of the Internal Combustion Air Compressor

By applying the seamless data interface between SolidWorks and ADAMS, the model of the internal combustion compressor was imported. The internal combustion compressor virtual prototype model was established, the kinematics and dynamics analysis were completed, and the dynamic load on crankshaft was given. After we use finite element analysis software ANSYS, the modal analysis of crankshaft were accomplished, the modes of vibration and response frequency in the first five orders were obtained. The mixed body dynamics model was established, and the crankshaft force curves under the rigid body and flexible body morphology were obtained.

Strength Analysis of Crankshaft Interfaces Considering Contact Problem

Since the work conditions of the crankshaft are complicated and the crankshaft interfaces are very weak, strength analysis of crankshaft interfaces is very important. Three dimensional finite element model of the crankshaft is built for strength analysis of the crankshaft interfaces. The crankshaft has three interfaces. During the analysis, contact problem is taken into account. The results show that the maximal stress of the crankshaft is 535MPa, which is less than the yield limit of 1Cr11Ni2W2MoV steel (993MPa). Therefore, the crankshaft interfaces can not be broken during the work of caterpillar tractor.

Modal and Strength Analysis of Crankshaft in Piston Compressor

For research on comprehensive performance of crankshaft in piston compressor, multi-body dynamics model was built to get mechanical boundary conditions of the crankshaft, and the fatigue strength was verified; Finite element model (FEM) of the crankshaft was established, and the 1st 6 modal of the crankshaft was obtained. The results showed that fatigue strength and dynamic characteristic of the crankshaft was qualified. Theoretical basis could be provided for optimize the crankshaft’s structure by fatigue strength and modal analysis.

Modal Analysis of Crankshaft under Multi-Speed

In the process of calculating the crankshaft frequency and vibration mode, free mode is always applied for the crankshaft modal analysis. Considering the effect of centrifugal force generated by the rotation to the crankshaft frequency and vibration mode, the frequency and vibration mode of multi-speed cases are calculated, and compared, which fully shows the vibration situation of the crankshaft in the process of actual working situations, the results match actual situation.

Method for Analysis of Dynamic and Strength in Internal Combustion Engine Crankshaft

Dynamic and strength analysis of crankshaft is the basis of structural design. The paper discussed the dynamic simulation method using software of ADAMS, at same time compared the three traditional stress analysis methods: simply supported beam or continuous beam model, single crank model and overall contact model. A new method was proposed, firstly to establish the oil film model with Reynolds equation and obtain the oil film stiffness, then to treat it as the equivalent stiffness of spring impacting on shaft neck, lastly to create the finite element model of the whole crankshaft. The model will be more precisely reflect the real conditions and can be use to the optimization of crankshaft.

A New Method Based on Finite Element Analysis for Crankshaft Strength

This paper presents a new method for the analysis of the crankshaft strength by using the softwares of solidworks, matlab and ansys. Using the powerful modeling function of solidworks, the three-dimensional model of crankshaft was established. Applying the techniques of numerical operation, graph display and GUI of matlab, the simulation calculations of kinematics, dynamics of crankshaft was carried out and the force and torque of crankshaft was obtained. Making full use of finite element analysis function of ansys, the modal analysis and strength analysis of crankshaft were made. The results show that it is valid to take the respective advantages of solidworks, matlab and ansys to establish a simple and effective approach for the analysis of the crankshaft strength, which supplies foundation for the optimization design and dynamic response of crankshaft.

The Performance Research of Automotive Crankshaft Based on ANSYS Workbench Collaborative Platform

Crankshaft is widely used in the automotive industry, its quality has a direct impact on engine and vehicle performance. This paper the finite element analysis of crankshaft is discussed by using four different loads based on ANSYS workbench collaborative platform, thus the distribution of stress and strain is obtained and the relationships between arc radius and crankshaft stress is studied by changing the value of arc knuckle radius between the connecting rod journal and the crank at the junction of the transition, lastly the intrinsic mode of the crankshaft is analyzed. The results for the crankshaft provide a theoretical basis for designers and reference.

Load Analysis of Crankshaft of Axial Three-Cylinder Hydraulic Confined Piston Engine

Hydraulic confined piston engine (HCPE) is a new type power device which can directly turn indicated work into hydraulic power, and three cylinders axial HCPE prototype has been manufactured. The load and stress study on its crankshaft is very important for future design. The working principles of HCPE was discussed, the mathematic model of its working process was constructed, and the load on crankpin by connecting rod was obtained by simulation. The total contact model of crankshaft reflecting the actual conditions was built, through which Von Mises stress, contact stress and friction stress of crankshaft were calculated. The maximum of Von Mises stress occures at the fillets of main shaft neck. The fatigue secure coefficient of crankshaft is about 2.85, which meets the demand.

Application of multi-body dynamics for the crankshaft layout in the concept phase

AVL intends to considerably increase the expressiveness of the results of crank train calculation during the concept phase in order to improve and accelerate engine development. The use of multi-body dynamics based on flexible bodies is a well-established method for calculating the dynamic behaviour and the local loads in the current engine development process. However, comprehensive input data are required for a calculation method of this kind. In addition, computing times are very high. These disadvantages limit application in an early development phase and the investigation of many variants. The present paper describes the improvement of the crankshaft analysis and the integration of multi-body dynamics into the concept phase of engine development.

9539374 Coupled vibration analysis of crankshaft and power plant Kohichi Shinbata, Hiroshi Kagaya, Kohji Horikawa (Mazda Motor Corporation)

9539374 Coupled vibration analysis of crankshaft and power plant Kohichi Shinbata, Hiroshi Kagaya, Kohji Horikawa (Mazda Motor Corporation)

Pion-NucleonP-Wave Scattering Amplitudes and TheirS-Matrix Calculations

The effective-range formulas for the $P$-wave scattering amplitudes, $I=\frac{1}{2}$ and $I=\frac{3}{2}$, of pions on nucleons are derived for the low-energy region using the requirements of analyticity, unitarity, and crossing symmetry and a sum rule. The $S$-matrix calculations are carried out by the generalized one-channel Chew-Mandelstam method in which the denominator function $D$ may, generally, contain a Castillejo-Dalitz-Dyson (CDD) pole, while the function $N$ is considered in the three-pole effective-range approximation. The effective-range parameters are then determined by the usual procedure in which the input values are the $\ensuremath{\rho}$-meson and (3,3)-isobar ${N}^{*}$ discontinuities and the high-energy contributions in the crossed channels, and the nucleon pole in the direct channel. The amplitudes ${P}_{13}$ and ${P}_{33}$, derived in this way as functions of the CDD-pole term, are then compared with experiment by means of the calculated and experimental values of the scattering lengths ${a}_{13}$ and ${a}_{33}$. It is shown, as one of the main results, that the low-energy ${P}_{13}$ amplitude does not contain any CDD pole and produces a scattering length which is in excellent agreement with the experimental value, while the ${P}_{33}$ amplitude necessarily contains a nonzero pole term. These results are in agreement with the conclusions made on the basis of a quite different approach-the "crankshaft analysis" - in the papers by Atkinson et al.