Design Of Experimental Platform Research Articles

High-speed tracking of coalescence and mixing of optically controlled droplets

We are presenting an all-optical platform for on-demand and nonintrusive studies of coalescence of micron-sized liquid droplets in air. The platform has the purpose to mimic the airborne conditions occurring in typical environments where droplet interactions are involved. By means of the Förster resonance energy transfer mechanism, we have been able to track the dynamics of two coalescing glycerol droplets, with a radius of ∼10µm and a temporal resolution of 86µs. At the onset of coalescence, a fast mixing is observed. Such an effect depletes the fluorescence of the donor fluorophore to half its initial intensity on a timescale below the temporal resolution of our platform, whereas a complete mixing is observed to occur on a timescale of seconds. The experimental platform design and findings facilitate an increased understanding of the microphysics of collisions, coalescence, and the subsequent mixing/diffusion of droplets on the micrometer lengthscale and the microsecond timescale. Published by the American Physical Society 2024

Blockchain-Based IoT Model and Experimental Platform Design in the Defence Supply Chain

This paper aims to design, implement, and test a blockchain-based Internet of Things (IoT) platform model for the defence industry that enables the various supply chain actors to manage transactions and information in a transparent, secure, and traceable manner, while also fostering multilateral collaboration in the supply network. The platform was designed using a private and authorised model in the supply chain of MBDA Italy, part of MBDA -European leader in missile industry. Blockchain technology can facilitate the decentralisation and automation of supply chain activities. Throughput, latency, infrastructure, interoperability, onboarding and maintenance costs, data storage costs, waste of resources, block size restrictions, and the definition of smart contracts are the primary challenges and benefits that have influenced the design of a private permissioned blockchain. Managerial implications on the necessity to integrate the supply blockchain platform into other systems (e.g., finance, insurance, social domains) are explored to provide recommendations for the development of a more integrated digital industrial ecosystem.

Parameter Optimization of Sandcasting of Silumin (Aa6061) Using Genetic Algorithm

Automobile and engine components are often sand cast during manufacture because of its simplicity in operation. Manufacturing processes and conditions were appropriately carried out by developing a Design of Experiment platform to effect a fair randomization of the various experimental runs. Taguchi Orthogonal array was used to develop a layout for the sand casting experiment. Multiple linear Regression technique was used to develop mathematical models for the 3 responses-fatigue strength, wear rate and hardness. The Weighted Average method was applied in ascribing criteria weights. The single composite objective function generated was inputted into the Genetic algorithm tool box which yielded optimal levels for the four cases adopted. Case 4 which is the maximum importance for fatigue strength had its optimal conditions to be 749.99 o C, 49.999Hz, 30.01seconds and 265.35mm 2 for pouring temperature, vibration frequency, vibration time and runner size respectively. Validation test conducted showed that the values obtained from the actual experiment were similar to that yielded by the predictive models. Keywords: Sand casting , Optimization, Genetic algorithm and Taguchi design DOI: 10.7176/IEL/13-1-06 Publication date: April 28 th 2023

Experimental Platform Design for Particle Behavior Investigation

The hopper is a kind of important equipment in bulk handling process. In this paper, an experimental platform was designed. The experimental platform was mainly composed of a feeding head, a vertical conveying screw machine, a horizontal conveying screw and a lifting device, a supporting structure, the visual experimental system,the electrical system and the acquisition system. the particle behavior for hoppers can be assessed by the experimental platform. And the visual experimental system will help to investigate the real particle flow behavior and will provide instructions for hopper design in future

Surrogate-assisted parametric calibration using design of experiment platform within digital twinning

Surrogate-assisted parametric calibration using design of experiment platform within digital twinning

Design and Realization of hybrid digital twin based on carbon steel corrosion

Objective Use IoT technology and build digital twin model to comprehensively and directly reflect the whole life cycle condition of metal structure corrosion process, realize the intelligent prediction and maintenance of metal corrosion, and improve the reliability of metal structure work. Method Combining finite element model with real-time data drive, the digital twin model of atmospheric corrosion process and the experimental platform design scheme of IOT monitoring are proposed to establish the link between corrosion digital simulation and actual corrosion process. Results Combining corrosion physical modeling and corrosion real-time data drive, combining them into a hybrid digital twin, realizing the whole life cycle management of metal structures, providing reference for corrosion research and application of corrosion prevention technology. Conclusion The digital twin combining real-time data-driven and physical models has better application prospects, and future ship development can apply digital twin technology to further intelligent manufacturing production.

Testing Platform of Chains and Sprockets for Conveyer System Designs

In discrete manufacturing, material-handling systems (MHSs) are highly customized to meet the handling requirements of products, processes, and plant layouts. However, MHSs are often built by third-party suppliers using standardized components such as chains and sprockets. With the globalization of manufacturing businesses, more and more products with similar specifications have become available on the market, and yet MHS suppliers rely heavily on physical tests to select the best components for their products. Since the selection of parts and components is critical to the quality and cost-effectiveness of MHSs, the authors are motivated to develop a systematic approach to building an experimental platform for the selection of chains and sprockets which are widely used for MHS applications. A conceptual design of experimental platform is proposed to illustrate the involved procedure, selection of sensors, and instrumentation for the evaluation of chains and sprockets for MHSs.

Design of Experiment Platform for Noninvasive Ventilator Based on LabVIEW

The study presents an experiment platform to perform ventilation and develop the control strategy for ventilator. The software designed by LabVEIW displays and saves data in ventilation support through connecting with data acquisition device and signal processing circuit, which is improved by control strategy in order to achieve the more scientific ventilation. The experiment platform realizes the ventilation support and is close to the data outputted from ventilator. The platform provides values for ventilation control strategy in development phase.

Parametric modeling and multiobjective crashworthiness design optimization of a new front longitudinal beam

The front longitudinal beam (FLB) is the most important energy-absorbing and crashing force–transmitting structure of a vehicle under front-impact collision. For better weight reduction and crashworthiness of the FLB, a new structure, variable rolled blank–variable cross-sectional shape FLB (VRB-VCS FLB), is proposed. It has both the continuous variation of thickness and variable cross-sectional shape in space. As the thickness distribution and cross-sectional shape change continuously, the proposed structure evolves into three distinct forms, i.e., the uniform-thickness FLB, variable rolled blank FLB, and variable cross-sectional shape FLB. However, literature on parametric modeling and crashworthiness design optimization of the VRB-VCS FLB is very limited. This paper proposes a parametric modeling method of VRB-VCS FLB with manufacturing constraints. Multiobjective crashworthiness design optimization is performed to explore the lightweightness and crashworthiness performance of the VRB-VCS FLB. Firstly, thickness distribution and cross-sectional shape parameters are defined. Secondly, local parametric subsystem front-impact model is established to balance accuracy and efficiency. Thirdly, a multiobjective optimization model of VRB-VCS FLB is constructed. Finally, a fully automated design of experiment platform is established to improve the data collection efficiency, and epsilon-support vector regression technique and non-dominated sorting genetic algorithm II are utilized to search the Pareto optimal frontier. The numerical results show that the lightweightness and crashworthiness of the VRB-VCS FLB are significantly improved when compared with the uniform-thickness FLB.

The Experimental Platform Design of China Space Station

The Experimental Platform Design of China Space Station

Design and development of a UAV Experimental Platform

This paper deals with the design, construction, and instrumentation of a UAV experimental platform. It is formed by a mechanism and a UAV hexacopter. The mechanism allows the movement around of non-inertial frame of the vehicle while restricting the movement around of inertial frame. The UAV hexacopter is fixed to the mechanism and contains an IMU sensor to measure the angular position of the vehicle. The data acquisition, processing and compute of the control signals is developed on board the vehicle through a NI myRIO®. By considering the dynamical behavior of the UAV hexacopter, it can be divided in rotational and translational motion. The stabilization of the rotational dynamics is addressed in this work, where two control loops around the Euler angles roll and pitch are implemented and tested in the experimental platform. The development of the instrumentation and the construction of the experimental platform are presented to explain how the system measures the angular position around the non-inertial frame of the UAV. The main contribution of this work is the design of the experimental platform. The effectiveness and practicality to stabilize a UAV hexacopter are shown through experimental results.

Design of Experimental Platform for the Static Stiffness of Guide Roller

In mine shaft hoisting system, The hoisting container generally adopts the guide roller which is used as the movement guiding device. Stiffness parameters and characteristic curves are very important technical indexes of the guide roller. For guide roller series, Proposing The method of stiffness performance test, Designing the experimental platform for the stiffness of the guide roller, The main functions of the experimental platform and the structure of the main units are analyzed. Results show that equipment can meet the stiffness test of the guide roller series, so as to determine the optimum stiffness value of the guide roller. Achieving the purpose of improving the life of guide roller.

The Experimental Platform Design for NCS Based on CAN Bus

In order to facilitate research on the performance of Networked Control System, overcome the defects of unable to reflect the system performance, based on the CAN bus a kind of NCS experimental platform is designed. The system is composed of a main node and several slave nodes and Dc motor as the actuator. The master node is designed with ARM + U-boot + Linux structure, connecting with PC via Ethernet. For this experiment platform, using c + + Builder a scheduling algorithm performance testing software is developed, to further research on the effects of different scheduling algorithm on the NCS performance.

Simulator-to-Emulator: Analysis and Design of Experiment Platform for Underwater Sensor Networks

Researchers have proposed many protocols for underwater sensor networks (UWSN) in recent years. How to test the designed protocols accurately and effectively in a lab controlled environment has become an important problem. The existing simulators and emulators for UWSN are analyzed and how to design an experimental platform from simulator to emulator in a laboratory environment is proposed. It can accurately simulate the complex environment in water just using a computer, and test the algorithms and protocols for UWSN; it can also do the test in a real environment by the combination of hardware and software. Finally, a set of evaluation indexes for physical layer, MAC layer and network layer of the experimental platform are presented.

Research and Design of Experiment Platform Based on ARM Embedded System

With the development of the global economy, national exchange frequently between navigational skills improve more and more attention. Radar, ARPA has identified the ship's capabilities, but because of their limitations were unable to adapt to the needs of modern maritime security. As digital communications technology, the rapid development of computer and network information technology, development of AIS Technology Foundation has been set up. Navigational aids in the shipping industry have become increasingly demanding of circumstances, marine automatic identification system (AIS) came into being. This article examines the AIS system architecture based on wireless local area network, building a wireless local area network.

Pipeline Frequency Test Bed Design

For the production of high reliability, wide use range, low cost of pipeline frequency test rig, the design scheme is determined, the structural design. Design of experiment platform to meet the requirement of experiment, and has practical application value.

Design of Bending Deflection of Pipe Test Bed

For the production of high reliability, wide use range, low cost of the bending deflection of pipe test bed, the design of test program was optimized, the structural design. Design of experiment platform to meet the requirement of experiment, and has practical application value.

Design of Experimental Platform to Simulate Spacecraft Dynamics

In this paper an experimental setup to simulate spacecraft dynamics is presented. First, the dynamics of the spacecraft is briefly revised and a set of models to simulate spacecraft dynamics are described. Second, the various models are evaluated based on robustness, accuracy, easiness of measurement, rigidity and space requirement and Stewart platform is selected. Third, mechanical design of Stewart platform under static consideration is presented. Fourth, the layout of experimental platform is presented. Final section summarizes the research work and outlines the plan for future work.

Strategic Behavior and Equilibrium in Experimental Oligopolistic Electricity Markets

The method of experimental economics is applied to research of oligopolistic electricity markets. The design of experimental platform, principles of experimental economics and experimental design are introduced. The experiments are organized on base of the Cournot model of oligopolistic electricity markets. A set of experiments are conducted on the experimental oligopolistic markets with three generating companies (Gencos) and the experimental results are analyzed with strict statistics approaches. The results show that the market competition will converge to the results between perfect competition equilibrium and Nash equilibrium in oligopolistic electricity markets with asymmetric production cost functions and repeated play among the Gencos. The decision support tools of Gencos have significant influences on experimental results. The markets converge to static Cournot-Nash equilibrium when the bounded-rational subjects repeatedly play, equipped with the tools that can give best response strategies. The experimental method provides a complement to the theoretical research and computer simulation and has many merits in modeling realistic electricity markets.