Military Vehicle Start-Up Process Simulation and Analysis Based on Matlab

2011 ◽  
Vol 188 ◽  
pp. 723-728
Author(s):  
Y.B. Zhou ◽  
W. Wei

Based on object-oriented modeling technique, Vehicle dynamic model is divided into several separate sub-modules through physical modeling software Matlab/SimDriveline. The main components effect vehicle dynamics are simulated and analyzed. Whole vehicle dynamics model is established and its start-up process is simulated and compared with test results. It shows that simulation results agree with test results.

2012 ◽  
Vol 430-432 ◽  
pp. 1866-1870
Author(s):  
Zhi Xiong Zhu ◽  
Shi Shun Zhu ◽  
Guo Jun Wang ◽  
Yan Zhu

Design and implementation of six freedom transportation vibration spectrum collection system is presented in this paper. The Attitude and Heading Reference System (AHRS) is used to capture signals including x, y, z, direction linear acceleration, angular rates around Z-axis and pitch, roll degree. The software’s architecture and modules for host computer is designed with object-oriented analysis and design techniques, and the software is implemented with VC++6.0. The test results show that the system was able to collect vehicular vibration information on time and the collection data was replayed on the vibration platform.


Author(s):  
Fumiaki Yamada ◽  
Hiroaki Ohira

Flow network models of the upper plenum of reactor vessel and the primary inlet plenum of intermediate heat exchanger (IHX) of MONJU were advanced and each model was validated by the measured data obtained in the previous system start-up tests (SSTs). Then the whole plant dynamics in a plant trip transient of MONJU were simulated by incorporating these flow network models. The natural circulation in the primary and secondary heat transport systems were also validated by these test results. From these validations, we concluded that the plant dynamics model incorporated the advanced models in Super-COPD code could simulate the whole plant dynamics in good accuracy both in the transients and natural circulation conditions and that it was applicable to predict the next SSTs.


2012 ◽  
Vol 263-266 ◽  
pp. 595-599
Author(s):  
Bing Li ◽  
Jianhua Zheng ◽  
Yang Hui Zhou ◽  
Li Xi Luo

Aiming at the problem of real-time simulation of vehicle dynamics. Dynamic model of tracked vehicle was built in Vortex. Base class of vehicle was secondary developed to apply torque to the sprockets directly. Finally, dynamics model of electric drive tracked vehicle was established. Under different conditions,the dynamics real-time simulation was carried out. The results showed that the vehicle dynamic simulation in Vortex ensures high accuracy and also has a good real-time.


Author(s):  
Jin-Kyu Ok ◽  
Jeong-Hyun Sohn ◽  
Seung-Kyu Lee ◽  
Su-Jin Park ◽  
Wan-Suk Yoo

In this paper, a new bushing model for vehicle dynamic analysis is proposed. Bushing components of a vehicle suspension system are tested to capture the nonlinear and hysteretic behavior of typical rubber bushing elements and the test results are used to develop bushing model using Bouc-Wen hysteretic model. ADAMS program is used to generate the Bouc-Wen hysteretic bushing model. The parameter identification through the sine excitation input is carried out in the time-domain. VisualDOC program is employed to find the optimal coefficients of the model. A numerical example is suggested to verify the performance of the proposed model.


2001 ◽  
Author(s):  
Gene Y. Liao

Abstract Many general-purpose and specialized simulation codes are becoming more flexible which allows analyses to be carried out simultaneously in a coupled manner called co-simulation. Using co-simulation technique, this paper develops an integrated simulation of an Electric Power Steering (EPS) control system with a full vehicle dynamic model. A full vehicle dynamic model interacting with EPS control algorithm is concurrently simulated on a single bump road condition. The effects of EPS on the vehicle dynamic behavior and handling responses resulting from steer and road input are analyzed and compared with proving ground experimental data. The comparisons show reasonable agreement on tie-rod load, rack displacement, steering wheel torque and tire center acceleration. This developed co-simulation capability may be useful for EPS performance evaluation and calibration as well as for vehicle handling performance integration.


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