Research on Vehicle Dynamics Simulation for Driving Simulator

2011 ◽  
Vol 308-310 ◽  
pp. 1946-1950 ◽  
Author(s):  
Fang Tang ◽  
Yan Ding Wei ◽  
Xiao Jun Zhou ◽  
Zhu Hui Luo ◽  
Ming Xiang Xie ◽  
...  
Keyword(s):  
Real Time ◽  
Vehicle Dynamics ◽  
Driving Simulator ◽  
Simulation Method ◽  
Dynamics Simulation ◽  
Tyre Model ◽  
Power Train ◽  
Model And Simulation ◽  
Body Dynamics ◽  
Multi Body

In order to fulfill the requirement of vehicle dynamics performance and real-time capability in driving simulator, modeling and simulation method of a four-wheeled vehicle model based on multi body dynamics software Vortex was studied. Fundamental construction and dynamics properties of the model such as body, chassis, wheels, power train, suspension and tyre model were described. The model was tested to simulate on the C grade of road. The results indicate that the model and simulation method can well represent vehicle dynamics performance and high real-time capability of simulation, and is worthy to apply to driving simulator in the future.

Dynamic model of an air spring and integration into a vehicle dynamics model

2008 ◽  
Vol 222 (10) ◽  
pp. 1813-1825 ◽  
Author(s):  
F Chang ◽  
Z-H Lu
Keyword(s):  
Dynamic Model ◽  
Vehicle Dynamics ◽  
Simulation Method ◽  
Heat Transfer Process ◽  
Spring Model ◽  
Dynamics Model ◽  
Air Spring ◽  
Full Vehicle ◽  
Body Dynamics ◽  
Multi Body

It is worthwhile to design a more accurate dynamic model for air springs, to investigate the dynamic behaviour of an air spring suspension, and to analyse and guide the design of vehicles with air spring suspensions. In this study, a dynamic model of air spring was established, considering the heat transfer process of the air springs. Two different types of air spring were tested, and the experimental results verified the effectiveness of the air spring model compared with the traditional model. The key factors affecting the computation accuracy were studied and checked by comparing the results of the experiments and simulations. The new dynamic model of the air spring was integrated into the full-vehicle multi-body dynamics model, in order to investigate the air suspension behaviour and vehicle dynamics characteristics. The co-simulation method using ADAMS and MATLAB/Simulink was applied to integration of the air spring model with the full-vehicle multi-body dynamics model.

The Research on the Embedded Vehicle Dynamics Simulation Method

2013 ◽  
Vol 380-384 ◽  
pp. 1746-1749
Author(s):  
Jun Zhan ◽  
Jiang Li Lu ◽  
Liang Xu ◽  
Wei Zhang
Keyword(s):  
Real Time ◽  
Vehicle Dynamics ◽  
Subjective Evaluation ◽  
Simulation Method ◽  
Dynamics Simulation ◽  
Dynamics Model ◽  
The Real ◽  
Online Simulation ◽  
Preliminary Study ◽  
And Control

At present, the performance of the vehicle dynamics model is mainly evaluated objectively through offline simulation. In this paper, a vehicle dynamics model was implemented in dSPACE, which was applied to the Automotive Performance Simulator and the preliminary study was made for the realization of the subjective evaluation of the performance of vehicle dynamics model through the real-time closed-loop online simulation. The dSPACE interface library was used to write a Clib program to operate and control the Carsim RT model running on the dSPACE platform, which realized the communication between the external hardware and the real-time hardware of dSPACE.

Development of dynamic base model of a bogie suspended forwarder

2016 ◽  
Vol 231 (2) ◽  
pp. 357-371 ◽  
Author(s):  
Abbos Ismoilov ◽  
Ulf Sellgren ◽  
Kjell Andersson
Keyword(s):  
Simulation Model ◽  
Degrees Of Freedom ◽  
Dynamics Simulation ◽  
Whole Body ◽  
Rough Terrain ◽  
Tyre Model ◽  
Body Dynamics ◽  
Dynamic Simulation Model ◽  
Multi Body ◽  
Whole Body Vibrations

A forwarder is an off-road working machine that is used to transport logs from logging sites to a landing area that is accessible by trucks. Soil damage and operator comfort, especially whole-body vibrations when operating on hard and rough terrain, are crucial issues when developing novel forest machines. Most forwarders on the market are heavy machines with articulated steering and they are equipped with pairs of wheels mounted on bogies. For such bogie machines, only the flexibility and the dynamic dissipation in the tyres contribute to the “chassis damping”. The roll and lateral motions are the most severe components of the whole-body vibrations. So, developing new traction units, chassis suspensions and/or cabin suspension are in focus. Model-based design relies on focused models that are as simple as possible, but not too simple. This paper presents a 12 degrees-of-freedom multi-body dynamics simulation model of a standard eight-wheeled bogie type of medium-sized forwarder. The presented model is targeted for assessing and comparing different design solutions. It is shown that a configuration of seven rigid subsystems and eight flexible tyres represented with the simple and computer efficient Fiala tyre model enables the forwarder dynamic simulation model to be used to predict the roll and lateral motions of a forwarder operating on hard and rough terrain.

Simulation of Accessory Drive Belt Concerning to Slippage and Transversal Vibration

2006 ◽  
Author(s):  
Hiroshi Takagishi ◽  
Hiroshi Yoneguchi ◽  
Daichi Sakamoto ◽  
Atsushi Nagakubo
Keyword(s):  
Simulation Method ◽  
Dynamics Simulation ◽  
Design Stage ◽  
Friction Contact ◽  
Transversal Vibration ◽  
Body Dynamics ◽  
The Coefficient Of Friction ◽  
Drive Belt ◽  
Section Model ◽  
Multi Body

A simulation method was proposed to predict the slippage and transversal vibration of the accessory drive belt. To reproduce these phenomena, the accessory drive belt was represented by a section-by-section model in which the belt was replaced by a finite number of masses and springs using multi-body dynamics simulation. In this model, the belt was able to vibrate in both the direction of advance and the direction perpendicular to it, and a friction contact element was defined between the pulley and the belt. The coefficient of friction was made variable with respect to the slippage speed to enable stick and slippage to be predicted. This method allows for accurate simulation of the amount of belt slippage and the amplitude of transversal vibration, thus enabling the optimum belt layout to be determined at the design stage.

Multi-Body Dynamics Analysis of V-Type Diesel Engine Crankshaft

2014 ◽  
Vol 988 ◽  
pp. 617-620
Author(s):  
Ran Ran Wang ◽  
Yan Ming Xu ◽  
Xian Bin Teng
Keyword(s):  
Finite Element ◽  
Diesel Engine ◽  
Dynamic Models ◽  
Simulation Analysis ◽  
Simulation Method ◽  
Dynamics Simulation ◽  
Finite Element Software ◽  
Body Dynamics ◽  
Multi Body ◽  
Engine Crankshaft

Based on the V-type diesel engine crankshaft system, the paper combined the finite element method (fem) and multi-body dynamics method together, made a virtual simulation analysis. First, by 3d software and finite element software to establish the multi-body dynamic models of the crankshaft, bearing and piston, then simulated the actual engine working condition, and got the data such as crankshaft acceleration, velocity and displacement by the multi-body dynamics simulation analysis. By calculation, the paper found that by using the combination of finite element and multi-body simulation method, can we effectively simulate the diesel engine crankshaft dynamics characteristics.

Multi-Body Dynamics Simulation and Finite Element Analysis of the Car’s Sub-Frame

2012 ◽  
Vol 253-255 ◽  
pp. 2107-2112
Author(s):  
Jian Min Li ◽  
Chuan Yang Sun ◽  
Zhang Cheng Yang ◽  
Zu Xi Yi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Field ◽  
Simulation Method ◽  
Dynamics Simulation ◽  
Element Analysis ◽  
Engine Load ◽  
The Finite Element Analysis ◽  
Body Dynamics ◽  
Multi Body

For the problem that car sub-frame constraint connection complex and effective load more difficult to determine, using finite element and multi-body dynamics ADAMS co-simulation method, Analyzed on a Volkswagen vehicle sub-frame, obtained the accurate load on the sub-frame which are used by engine suspension. The finite element analysis results show that engine load is the greatest impact on the sub-frame stress field, which can be reduced by increasing the area of engine and the sub-frame contacting, thereby prolong the life of sub-frame.

Analysis of the Deterioration of Harmonic Local Irregularity on Locomotive Wheel-Rail Vertical Force

2014 ◽  
Vol 684 ◽  
pp. 137-144 ◽  
Author(s):  
Di Lai Chen ◽  
Jian Xin Liu ◽  
Kai Jun Du ◽  
Yan Wang
Keyword(s):  
Vehicle Dynamics ◽  
Strong Shock ◽  
Harmonic Excitation ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Vertical Force ◽  
External Excitation ◽  
Body Dynamics ◽  
Multi Body ◽  
Local Irregularity

By the MATLAB software the article simulated the local irregularity, the new harmonic excitation superimposed on the initial harmonic to simulate track settlement deterioration, the new uplift excitation superimposed on the initial harmonic to simulate track raised deterioration, as the locomotive model external excitation, using the SIMPACK multi-body dynamics simulation software to analyze the influences of the deterioration of harmonic local irregularity on locomotive wheel-rail vertical force, on the basis of the locomotive wheel-rail interaction dynamics index by the locomotive vehicle dynamics theory. The simulation results show that when the deterioration of harmonic local irregularity occurs, even if the amplitude of deterioration is small, which will cause serious deterioration of wheel-rail dynamic response and strong shock and vibration of wheel-rail .The larger amplitude of harmonic local irregularity, the greater of the maximum wheel-rail vertical force. When deterioration of the amplitude exceeds a certain value, the maximum of the wheel-rail vertical force exceedes the limit, which will cause derailment. The wheel-rail dynamic interaction increases with the speed increasing. At the same speed (such as 120km/h), harmonic local irregularity settlement deterioration compareing to harmonic local irregularity raised deterioration, the maximum of the wheel-rail vertical force increases 14.4%. Therefore, local irregularity deterioration or the speed of the locomotive should be strictly controlled.

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