Design of vibration damping test mechanism for suspension system of high speed tracked vehicle based on vertical linkage decoupling

2021 ◽  
pp. 095440622110424
Author(s):  
Xuedong Liu ◽  
Yong Guo ◽  
Zhewu Chen ◽  
Juchuan Dai ◽  
Qihui Lin ◽  
...  
Keyword(s):  
Performance Optimization ◽  
High Speed ◽  
Performance Testing ◽  
Virtual Prototype ◽  
Vibration Damping ◽  
Suspension System ◽  
Contact Theory ◽  
Prototype Model ◽  
Tracked Vehicle ◽  
And Performance

The suspension test-rig is restricted by the compound swing motion of the load wheel in a high-speed tracked vehicle, and cannot test the damping performance for the suspension system of the high-speed tracked vehicle with the track. A vibration damping testing mechanism using vertical linkage to decouple the compound swing motion of the load wheel is proposed for suspension performance testing with the track. Using Hertz elastic contact theory to solve the stiffness coefficient between load wheel and excitation wheel, a virtual prototype model for vibration damping test mechanism with vertical linkage is established in ADAMS. Correctness of the virtual prototype model is verified by experiment. The motion decoupling ability of the vibration damping testing mechanism is verified by simulation. The dynamic characteristics for each pair of guide and slider in vibration damping testing mechanism are analyzed under the condition of maximum excitation force and displacement, and the selection criteria of slider and guide contained in the motion pair components are acquired. The mechanism decouples the compound swing motion of the load wheel successfully, and can make suspension system performance testing in high-precision for the high-speed tracked vehicle with track realized, playing an important role in parameters design and performance optimization for the high-speed tracked vehicle.

Twin-Tracked Robot Obstacle Three-Dimensional Modeling and Simulation

2012 ◽  
Vol 479-481 ◽  
pp. 2351-2354 ◽  
Author(s):  
Bing Wu ◽  
Zen Ju Wei
Keyword(s):  
Process Development ◽  
Three Dimensional ◽  
Performance Testing ◽  
Virtual Prototype ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Prototype Model ◽  
Three Dimensional Modeling ◽  
Development Costs ◽  
Mechanical Products

Obstacle robot crawler is a very complex mechanical products. Crawler robot obstacle for traditional development pattern of the development cycle there is a long, complicated process, development costs are too high, difficult issues such as performance testing, this twin-tracked to the more impaired actual robot context of the study, the application of simulation technology robot design and development research. Use of 3D modeling software Pro / E and two-body dynamics simulation software to create more obstacles the robot tracked the virtual prototype model, the virtual prototype model based on a variety of simulation experiments, and the test results analysis.

Multi-Field Co-Simulation Research on Suspension System of Forging Manipulator Based on Virtual Prototype Technology

2010 ◽  
Vol 97-101 ◽  
pp. 3174-3178
Author(s):  
Fu Gang Zhai ◽  
Xiang Dong Kong ◽  
Chao Ai ◽  
Jie Liu
Keyword(s):  
Hydraulic System ◽  
Virtual Prototype ◽  
Suspension System ◽  
Prototype Model ◽  
Hydraulic Control ◽  
Static Characteristics ◽  
Simulation Research ◽  
Theoretical Significance ◽  
Virtual Prototype Technology ◽  
Forging Manipulator

Take a certain suspension system of forging manipulator as research object, mechanical system sub-model and hydraulic control system sub-model of suspension system were respectively built by using Pro/E, Mechanism/Pro, ADAMS and AMESim software, and the whole virtual prototype model of suspension system contains mechanical and hydraulic system sub-model was connected by interface module of software collaboration. Based on integrated features of virtual prototype technology, the dynamic and static characteristics of suspension system were researched by the method of multi-field co-simulation and software collaboration. The results can provide certain theoretical significance for designing suspension system of forging manipulator.

Microscale Radial-Flow Compressor Impeller Made of Silicon Nitride: Manufacturing and Performance

2004 ◽  
Vol 126 (2) ◽  
pp. 358-365 ◽  
Author(s):  
Sangkyun Kang ◽  
James P. Johnston ◽  
Toshiyuki Arima ◽  
Minoru Matsunaga ◽  
Hideaki Tsuru ◽  
...  
Keyword(s):  
Silicon Nitride ◽  
High Speed ◽  
Performance Testing ◽  
Turbine Generator ◽  
Compressor Impeller ◽  
Design Speed ◽  
And Performance ◽  
Flow Compressor ◽  
Shaft Unit ◽  
Full Design

A microscale, high-speed compressor impeller (12 mm diameter, 800,000 rpm) was tested for feasibility in regard to aerodynamic performance. The compressor was designed for application in a first-sized gas turbine generator. To survive high stresses at such high temperatures, the rotor was manufactured as a single turbine/compressor/shaft unit in silicon nitride, by the Mold SDM process. Performance testing was conducted in a cold-flow rig at reduced speed of 420,000 rpm. Results from a CFD code compared favorably to measured data at this speed. Extrapolation from test conditions to full design speed was accomplished by application of CFD applied at both speeds.

scholarly journals Computer-aided Efficient Design and Performance Optimization of Cutting Head for Roadheader

2022 ◽  
Author(s):  
Xin Jin ◽  
Guochao Zhao ◽  
Lijuan Zhao ◽  
Guocong Lin
Keyword(s):  
Performance Optimization ◽  
Structural Parameters ◽  
Virtual Prototype ◽  
Cutting Performance ◽  
Efficient Design ◽  
Cutting Head ◽  
Computer Aided ◽  
Coal Rock ◽  
Virtual Prototype Technology ◽  
And Performance

Abstract The cutting head is the core working mechanism of the roadheader for coal-rock materials cutting. The efficient and high performance design of cutting head is the key to improve the road head digging and mining technology. In this paper, based on cutting head design theory and virtual prototype technology, we propose a computer-aided structure design and performance optimization method for cutting head. We compile the calculation code and realize the reading and storing of relevant data through Excel. In particular, to obtain more realistic cutting performance data of the cutting head, we construct a coupling model of cutting head cutting rock wall based on virtual prototype technology, and then establish a database matching structural parameters, working parameters, coal-rock properties and cutting performance through extensive simulations. Based on the method, we complete the design of EBZ220 roadheader cutting head. We show that our method can realize the fast and efficient design of cutting head, and the designed cutting head has good working performance.

scholarly journals Allocation Optimization of Multi-Axis Suspension Dynamic Parameter for Tracked Vehicle

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Qihui Ling ◽  
Juchuan Dai ◽  
Xingyun He ◽  
Shengzhao Chen ◽  
Zhewu Chen
Keyword(s):  
Performance Optimization ◽  
Performance Index ◽  
Expert Knowledge ◽  
Dynamic Parameter ◽  
Optimization Method ◽  
Suspension System ◽  
Equal Weight ◽  
Tracked Vehicle ◽  
Road Roughness ◽  
Weight Allocation

The dynamic parameter allocation of the suspension system has an important influence on the comprehensive driving performance of the tracked vehicle. Usually, the allocation of suspension parameters is based on a single performance index, which has the disadvantage of not being able to achieve multi-performance optimization. Therefore, a novel optimization method using multi-performance index-oriented is presented. Firstly, considering the vertical vibration excitation caused by road roughness, the input (excitation) model of road roughness is embedded to establish the parametric dynamic model of the tracked vehicle. Then, the evaluation index and its quantitative algorithm, which reflect the multi-aspect performance of the suspension system, are proposed. Moreover, the parameter allocation objective function based on multi-index information fusion is designed. Finally, two allocation optimization methods are presented to solve the parameter allocation, i.e., equal weight allocation and expert knowledge-based weight allocation. By comparing the results obtained by the two methods, it is found that the performance of the suspension system can be improved effectively by optimizing the parameters of suspension stiffness and damping. Furthermore, the optimization of weight allocation based on expert knowledge is more effective. These provide a better knowledge reference for suspension system design.

scholarly journals Research on Real-Time Monitoring and Performance Optimization of Suspension System in Maglev Train

2021 ◽  
Vol 11 (24) ◽  
pp. 11952
Author(s):  
Xu Zhou ◽  
Tao Wen ◽  
Zhiqiang Long
Keyword(s):  
Real Time ◽  
Performance Optimization ◽  
High Performance ◽  
Suspension System ◽  
Control Performance ◽  
Real Time Monitoring ◽  
Maglev Train ◽  
Dynamic Compensator ◽  
And Performance ◽  
Residual Generator

With the success of the commercial operation of the maglev train, the demand for real-time monitoring and high-performance control of the maglev train suspension system is also increasing. Therefore, a framework for performance monitoring and performance optimization of the maglev train suspension system is proposed in this article. This framework consists of four parts: plant, feedback controller, residual generator, and dynamic compensator. Firstly, after the system model is established, the nominal controller is designed to ensure the stability of the system. Secondly, the observer-based residual generator is identified offline based on the input and output data without knowing the accurate model of the system, which avoids the interference of the unmodeled part. Thirdly, the control performance is monitored and evaluated in real time by analyzing the residual and executing the judgment logic. Fourthly, when the control performance of the system is degraded or not satisfactory, the dynamic compensator based on the residual is updated online iteratively to optimize the control performance. Finally, the proposed framework and theory are verified on the single suspension experimental platform and the results show the effectiveness.

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