scholarly journals Oriented Multi-Body System Virtual Prototyping Technology for Railway Vehicle

10.5772/26765 ◽  
2012 ◽  
Author(s):  
Guofu Ding ◽  
Yisheng Zou ◽  
Kaiyin Yan ◽  
Meiwei Ji
Keyword(s):  
Virtual Prototyping ◽  
Railway Vehicle ◽  
Body System ◽  
Virtual Prototyping Technology ◽  
Multi Body

Simulation and Analysis of Frame Structure of Military Transport Truck

2011 ◽  
Vol 291-294 ◽  
pp. 2237-2240
Author(s):  
Guo Nian Yao ◽  
Hai Ying Huang ◽  
Li Juan Wang
Keyword(s):  
Virtual Prototyping ◽  
Frame Structure ◽  
Vibration Modes ◽  
Three Dimension ◽  
Force And Motion ◽  
Body Dynamics ◽  
Virtual Prototyping Technology ◽  
Multi Body ◽  
High Credibility ◽  
Processor Module

In order to design the vibrator with the similar structure to military transport truck, which will be used in simulating transport environment and evaluating the transportation properties of the tested product, three-dimension model of overall structure of truck frame, crossbeams and floor is established with ADAMS/View based on multi-body dynamics theory and virtual prototyping technology. Post-processing of the simulation and analysis results is executed with ADAMS/Post Processor module with a military truck model in the study. According to the bump of vehicle during transport and the chassis vibration, the constraints, force and motion accord with the actual transport are put on the model. Vibration modes of all orders and the spectrum are gained and analyzed in detail. The results indicate that the simulation is consistent with the actual transport, which shows the simulation of the overall frame structure owns high credibility.

Research on Crosswind Stability of FSAE Racing Car with Rear Wing at Different Attack Angles

2012 ◽  
Vol 152-154 ◽  
pp. 737-742 ◽  
Author(s):  
Jun Ni ◽  
Si Zhong Chen ◽  
Da Feng ◽  
Xu Jie Wang ◽  
Jia Xin Hao
Keyword(s):  
Virtual Prototyping ◽  
Aerodynamic Characteristics ◽  
Attack Angle ◽  
Feasible Method ◽  
Body Model ◽  
Rear Wing ◽  
Air Resistance ◽  
Crosswind Stability ◽  
Virtual Prototyping Technology ◽  
Multi Body

In order to analyze the performance of a certain FSAE racing car with rear wing at different attack angles by virtual prototyping technology. The multi-body model of a FSAE racing car which takes non-linear factors into consideration was built by applying ADAMS/Car. The correctness of the model is verified by comparison with the actual experiment result. By the simulation of the air resistance and lift characteristics of the rear wing, a feasible method to building the aerodynamic characteristics of the rear wing in multi-body model was proposed. Based on these, the crosswind stability of FSAE racing car with rear wing at different attack angles was analyzed, the result shows that the effect of crosswind is reduced with the increase of the attack angle of the rear wing.

Robot Kinematics and Dynamics Analysis Based on Virtual Prototyping Technology

2012 ◽  
Vol 503-504 ◽  
pp. 752-755
Author(s):  
Zhi Ming Wang ◽  
Xuan Zhou
Keyword(s):  
New Technology ◽  
Rapid Development ◽  
Virtual Prototyping ◽  
Robot Kinematics ◽  
Kinematics And Dynamics ◽  
Dynamics Analysis ◽  
Robot Arm ◽  
Analysis Method ◽  
Virtual Prototyping Technology ◽  
Multi Body

Virtual prototyping is a new technology with the rapid development of computer technology. This paper put forward a systematic kinematics and dynamics analysis method based on virtual prototyping technology to simulate multi-body dynamics of robot arm. After the design requirements were introduced, the conceptual design of robot arm was then proposed, and the kinematics and dynamics analysis method was present with the simulation results. The kinematics and dynamics analysis of a robot arm was given as an example, which demonstrates that this method is obviously helpful for product design

scholarly journals Development of a Servo-Based Broaching Machine Using Virtual Prototyping Technology

2017 ◽  
Vol 63 (7-8) ◽  
pp. 466
Author(s):  
Seok Hong Park ◽  
Duc Viet Dang ◽  
Trung Thanh Nguyen
Keyword(s):  
Sliding Mode ◽  
Virtual Prototyping ◽  
Cost Savings ◽  
Ball Screw ◽  
Design Stage ◽  
Mechanical Structure ◽  
Tool Performance ◽  
Proposed Model ◽  
Virtual Prototyping Technology ◽  
Multi Body

Predicting machine tool performance at the design stage is one way to resolve the time issue and achieve cost savings. The objective of this paper was to develop a new non-hydraulic broaching machine using a servo motor, ball screw, and roll element linear guide using virtual prototyping technology. First, we developed a multi-body simulation model (MBS) of a servo-based broaching machine to investigate its dynamic behaviour. Then, an adaptive sliding mode proportional-integral-derivative (PID)-based controller (ASMPID) was proposed to conduct the broaching process. We then performed a co-simulation between the mechanical structure and virtual controller to investigate the ram body trajectory and identify the optimal control parameters. Finally, we manufactured a prototype machine to evaluate the simulation results and determine the benefits of the new system. Our results indicated that the proposed model, which includes a mechanical structure and intelligent controller, effectively improved broaching machine design. Therefore, this work is expected to improve the prototyping efficiency of new broaching machines.

Dynamic Performance of High-Speed Electric Multiple Unit within Multi-Body System Simulation

2019 ◽  
Vol 12 (4) ◽  
pp. 339-349
Author(s):  
Junguo Wang ◽  
Daoping Gong ◽  
Rui Sun ◽  
Yongxiang Zhao
Keyword(s):  
High Speed ◽  
Rapid Development ◽  
Dynamic Performance ◽  
Body System ◽  
High Speed Railway ◽  
Evaluation Indexes ◽  
Actual Operation ◽  
Multiple Unit ◽  
The Stability ◽  
Multi Body

Background: With the rapid development of the high-speed railway, the dynamic performance such as running stability and safety of the high-speed train is increasingly important. This paper focuses on the dynamic performance of high-speed Electric Multiple Unit (EMU), especially the dynamic characteristics of the bogie frame and car body. Various patents have been discussed in this article. Objective: To develop the Multi-Body System (MBS) model of EMU, verify whether the dynamic performance meets the actual operation requirements, and provide some useful information for dynamics and structural design of the proposed EMU. Methods: According to the technical characteristics of a typical EMU, a MBS model is established via SIMPACK, and the measured data of China high-speed railway is taken as the excitation of track random irregularity. To test the dynamic performance of the EMU, including the stability and safety, some evaluation indexes such as wheel-axle lateral forces, wheel-axle lateral vertical forces, derailment coefficients and wheel unloading rates are also calculated and analyzed in detail. Results: The MBS model of EMU has better dynamic performance especially curving performance, and some evaluation indexes of the stability and safety have also reached China’s high-speed railway standards. Conclusion: The effectiveness of the proposed MBS model is verified, and the dynamic performance of the MBS model can meet the design requirements of high-speed EMU.

scholarly journals Impact of Increased Travel Speed of a Transportation Set on the Dynamic Parameters of a Mine Suspended Monorail

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1528
Author(s):  
Kamil Szewerda ◽  
Jarosław Tokarczyk ◽  
Andrzej Wieczorek
Keyword(s):  
Computational Model ◽  
Travel Speed ◽  
Body System ◽  
Emergency Braking ◽  
System Method ◽  
Underground Coal Mines ◽  
Program Environment ◽  
Underground Transportation ◽  
Multi Body ◽  
Transportation Routes

The method of increasing the efficiency of using one of the most common means of auxiliary transport in underground coal mines—suspended monorails—is presented. Increase of velocity is one of the key parameters to improve the efficiency and economical effect related with the underground auxiliary transport. On the other hand, increasing the velocity results in bigger value of force acting on the suspended monorail route and its suspensions. The most important issue during increasing the velocity is ensuring the required safety for the passengers and not overloading the infrastructure. In order to analyze how increasing velocity influences the level of loads of the route suspension and the steel arch loads, the computational model of suspended monorail was developed. The computational model included both the physical part (embedded in the program environment based on the Multi-Body System method) and the components of the monorail control system. Two independent software environments were cooperating with each other through the so-called co-simulation. This model was validated on the base of results obtained on the test stand. Then, the numerical simulations of emergency braking with different values of velocity were conducted, which was not possible with the use of physical objects. The presented study can be used by the suspended monorail’s producers during the designing process, and leads to increase the safety on underground transportation routes.

Kinematics and Dynamics Simulation Research for Roller Coaster Multi-Body System

2011 ◽  
Vol 421 ◽  
pp. 276-280 ◽  
Author(s):  
Ge Ning Xu ◽  
Hu Jun Xin ◽  
Feng Yi Lu ◽  
Ming Liang Yang
Keyword(s):  
Structural Design ◽  
3D Model ◽  
Structure Design ◽  
Dynamics Simulation ◽  
Body System ◽  
Load Spectrum ◽  
Roller Coaster ◽  
Simulation Research ◽  
Calculation Results ◽  
Multi Body

To assess the roller coaster multi-body system security, it is need to extract the running process of kinematics, dynamics, load spectrum and other features, as basis dates of the roller coaster structural design. Based on Solidworks/motion software and in the 3D model, the calculation formula of the carrying car velocity and acceleration is derived, and the five risk points of the roller coaster track section are found by simulation in the running, and the simulation results of roller coaster axle mass center velocity are compared with theoretical calculation results, which error is less than 4.1%, indicating that the calculation and simulation have a good fit and providing the evidence for the roller coaster structure design analysis.

Hybrid Fatigue Analysis Method for Railway Carbody Structure

2008 ◽  
Vol 44-46 ◽  
pp. 733-738 ◽  
Author(s):  
Bing Rong Miao ◽  
Wei Hua Zhang ◽  
Shou Ne Xiao ◽  
Ding Chang Jin ◽  
Yong Xiang Zhao
Keyword(s):  
Fatigue Life ◽  
Fatigue Damage ◽  
Hybrid Method ◽  
Dynamic Stress ◽  
Stress Test ◽  
Fatigue Analysis ◽  
Railway Vehicle ◽  
Analysis Method ◽  
Structure Dynamic ◽  
Multi Body

Railway vehicle structure fatigue life consumption monitoring can be used to determine fatigue damage by directly or indirectly monitoring the loads placed on critical vehicle components susceptible to failure from fatigue damage. The sample locomotive carbody structure was used for this study. Firstly, the hybrid fatigue analysis method was used with Multi-Body System (MBS) simulation and Finite Element Method (FEM) for evaluating the carbody structure dynamic stress histories. Secondly, the standard fatigue time domain method was used in fatigue analysis software FE-FATIGUE and MATLAB WAFO (Wave Analysis for Fatigue and Oceanography) tools. And carbody structure fatigue life and fatigue damage were predicted. Finally, and carbody structure dynamic stress experimental data was taken from this locomotive running between Kunming-Weishe for this analysis. The data was used to validate the simulation results based on hybrid method. The analysis results show that the hybrid method prediction error is approximately 30.7%. It also illustrates that the fatigue life and durability of the locomotive can be predicted with this hybrid method. The results of this study can be modified to be representative of the railway vehicle dynamic stress test.

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