Model Establishment and Simulation of Vehicle Handling Stability Using Adams/Car

2012 ◽  
Vol 472-475 ◽  
pp. 2152-2155
Author(s):  
Jie Meng ◽  
Kai Zhang ◽  
Bao Cheng Yang
Keyword(s):  
Lane Change ◽  
Vehicle Model ◽  
Simulation Test ◽  
Vehicle Handling ◽  
Adams Software ◽  
Body Dynamics ◽  
Constant Radius ◽  
Design Plan ◽  
Simulation Results ◽  
Multi Body

A vehicle model is built using the multi body dynamics software-ADAMS/ Car first. And then the vehicle’s performance of the constant radius cornering and ISO lane change is simulated. According to the simulation results, the handling stability is evaluated. The result shows that the ADAMS software can provide accurate simulation test and optimize the design plan of vehicle product.

Handling Stability Performance Simulation and Analysis of Three Different Vehicle Models

2010 ◽  
Vol 29-32 ◽  
pp. 750-755
Author(s):  
Shu Feng Wang ◽  
Hua Shi Li ◽  
Cui Hua He
Keyword(s):  
Lateral Acceleration ◽  
Dynamics Model ◽  
Vehicle Model ◽  
Performance Simulation ◽  
Vehicle Handling ◽  
Stability Performance ◽  
Body Dynamics ◽  
Nonlinear Vehicle Model ◽  
Simulation Results ◽  
Multi Body

In order to obtain accurate vehicle handling stability performance, 2 DOF nonlinear vehicle model and multi-body dynamics vehicle model are established. Selecting the same vehicle parameters, step steering angle input simulations of three vehicle model (include 2DOF linear vehicle model) are carried out under the same driving conditions, simulation results are analyzed and compared. The simulation results show that 2DOF linear model can characterize the steering states of vehicle when vehicle lateral acceleration is small, but when vehicle lateral acceleration is big, Nonlinear vehicle model and multi-body dynamics model is accurate.

The Analysis of Amphibious Vehicle Handling Stability Based on ADAMS/Car

2014 ◽  
Vol 1006-1007 ◽  
pp. 294-297 ◽  
Author(s):  
Zhi Ming Yan ◽  
Jian Jun Cai ◽  
Su Qin Qu ◽  
Fang Fang Zhai ◽  
An Rong Sun ◽  
...  
Keyword(s):  
Input Pulse ◽  
Suspension System ◽  
Dynamics Model ◽  
Vehicle Handling ◽  
Rear Suspension ◽  
Front Suspension ◽  
Stability Performance ◽  
Body Dynamics ◽  
Simulation Results ◽  
Multi Body

In this paper, a multi-body dynamics model of amphibious vehicle is established in terms of dynamic simulative software ADAMS/Car. The front and rear suspension system are studied and analyzed respectively. The handling stability performance of front suspension is simulated under step steering input, pulse steering input, steady turning, and meandered test in related to specifications. According to the simulation results, the handling stability of amphibious vehicle is evaluated objectively.

Vehicle Ride Comfort Simulation under Pulse Road Surface Based on Multi-Body Dynamics

2011 ◽  
Vol 48-49 ◽  
pp. 1341-1344
Author(s):  
Feng Yan Yi ◽  
Chang Feng Zhou
Keyword(s):  
Shock Absorber ◽  
Ride Comfort ◽  
Road Surface ◽  
Beam Model ◽  
Two Dimensional ◽  
Vehicle Model ◽  
Response Characteristics ◽  
Adams Software ◽  
Body Dynamics ◽  
Multi Body

The shock absorber model and front beam model of a domestic car are built using UG according to the existing two-dimensional drawings. And they are assembled together with the rear beam model, steering knuckles model and arm model. The ADAMS software is used to build up an assembled vehicle model, which includes front and rear suspensions, chassis, steering, tires subsystems and so on. Response characteristics of vehicle ride comfort under pulse road surface are studied through simulation.

Study and Simulation on Truck Front Suspension Using ADAMS

2013 ◽  
Vol 433-435 ◽  
pp. 2235-2238
Author(s):  
Wei Ning Bao
Keyword(s):  
System Dynamics ◽  
Mechanical System ◽  
Steering System ◽  
Front Wheel ◽  
System Model ◽  
Simulation Test ◽  
Front Suspension ◽  
Body Dynamics ◽  
Wheel Alignment ◽  
Multi Body

The mechanical system dynamics software,ADAMS,is used to establish multi-body dynamics system model for a truck front suspension and steering system. Through the simulation test of wheel travel, front wheel alignment parameters changing along with the wheel travel was obtained.

Characteristics Analysis of the Automobile with Negative Stiffness Suspension

2013 ◽  
Vol 456 ◽  
pp. 189-192 ◽  
Author(s):  
Xiao Zhen Qu ◽  
Guang Quan Hou ◽  
Hao Liu ◽  
Hui He
Keyword(s):  
Natural Frequency ◽  
Ride Comfort ◽  
Vertical Direction ◽  
Negative Stiffness ◽  
Vehicle Model ◽  
Vehicle Handling ◽  
Characteristics Analysis ◽  
Vibration Transmissibility ◽  
Simulation Results

One new negative stiffness suspension is introduced in this paper. The vehicle with negative stiffness suspension has good ride comfort and handling stability. The natural frequency of system could be reduced in vertical direction by applying negative stiffness suspension. The vehicle model with negative stiffness suspension or not is built in ADAMS. The comparison of simulation results show that the vehicle with negative stiffness suspension could reduce the natural frequency of system and vibration transmissibility, and also improve the vehicle ride comfort and vehicle handling stability.

A Multibody Dynamics Approach to Friction Wedge Modeling for Freight Train Suspensions

2007 ◽  
Author(s):  
J. Steets ◽  
B. J. Chan ◽  
C. Sandu
Keyword(s):  
Degrees Of Freedom ◽  
Vertical Axis ◽  
Vertical Displacement ◽  
Unilateral Contact ◽  
Transient Dynamics ◽  
Normal Forces ◽  
Body Dynamics ◽  
Modeling Software ◽  
Simulation Results ◽  
Multi Body

This paper presents an effort to use multi-body dynamics with unilateral contact to model the friction wedge interaction with the bolster and the side frame. The new friction wedge model is a 3D, dynamic, stand-alone model of a bolster-friction wedge-side frame assembly. It allows the wedge four degrees of freedom: vertical displacement, longitudinal (between the bolster and the side frame) displacement, toe-in and toe-out, and yaw (rotation about the vertical axis). The dedicated train modeling software NUCARS® has been used to run simulations with similar inputs and to compare — when possible — the results with those obtained from the new stand-alone MATLAB friction wedge model. The stand-alone model shows improvement in capturing the transient dynamics of the wedge better. Also, it can predict not only normal forces going into the frame and bolster, but also use the associated moments to enhance model behavior. Significant simulation results are presented and the main differences between the current NUCARS® model and the new stand-alone MATLAB models are highlighted.

Research of Amplification Frame Optimization Based on Optistruct

2012 ◽  
Vol 510 ◽  
pp. 541-544
Author(s):  
Bing Zhong
Keyword(s):  
Stress Distribution ◽  
Structural Optimization ◽  
Working Conditions ◽  
Simulation Software ◽  
Dynamics Simulation ◽  
Body Dynamics ◽  
Utilization Ratio ◽  
Simulation Results ◽  
The Cost ◽  
Multi Body

The motion of amplification frame of dumper was simulated by multi-body dynamics simulation software ADAMS, and the danger working conditions of amplification frame were calculated. The stress of amplification frame was simulated and analyzed by Optistruct software. The results show that the stress distribution in amplification frame is not uniform and it is big in the middle and small in the edge zeros. The structure of amplification is optimized according to the simulation results. The utilization ratio of the material increases and the cost of production decreases after structural optimization.

Research on Effect of Locking Ratio of Limit-Slip Differential on Handling Stability of FSAE Racing Car

2014 ◽  
Vol 988 ◽  
pp. 582-585
Author(s):  
Yu Zhan Cai ◽  
Jian Hua Wang ◽  
Wen Long Dong ◽  
Zuo Fei Liu
Keyword(s):  
Angular Velocity ◽  
Radius Ratio ◽  
Lateral Acceleration ◽  
Vehicle Model ◽  
Ratio Increase ◽  
Differential Model ◽  
Vehicle Handling ◽  
Average Acceleration ◽  
Changing Trend ◽  
Simulation Results

A nonlinear four-wheel dynamics vehicle model which includes a limit-slip differential model based on FSAE racecar is established and the typical conditions are designed according to track requirement. The effect of different locking ratio on vehicle handling stability has been researched .The simulation results shows that: with the increase of locking ratio, the steering radius ratio increase, both peak lateral acceleration and yaw angular velocity reduce, and the changing trend of value is flat. But the average acceleration increase with the locking ratio until the latter reach a specific value under the condition of Slaloms.

Virtual Prototype Co-Simulation of 4WS Vehicle

2011 ◽  
Vol 328-330 ◽  
pp. 408-411
Author(s):  
Wei Wei Wang ◽  
Jian Feng Xu
Keyword(s):  
Control System ◽  
Physical Model ◽  
Mechanical Model ◽  
Theoretical Basis ◽  
Virtual Prototype ◽  
Lane Change ◽  
Vehicle Model ◽  
Response Curves ◽  
Simulation Results ◽  
Set Up

A new 4WS vehicle model is set up by means of revamping a foreign FWS model. Co-simulation is completed by loading 4WS mechanical model as a subsystem which is built to express the characteristics of physical model of vehicle in ADAMS/Car into the control system modeled in MATLAB. Moreover, the response curves of evaluating handling stability are obtained according to co-simulation results of step steering maneuvers and single lane change maneuvers. It provides theoretical basis for developing 4WS physical vehicle rapidly.

Design of a miniature modular inchworm robot with an anisotropic friction skin

Robotica ◽  
2018 ◽  
Vol 37 (3) ◽  
pp. 521-538 ◽  
Author(s):  
Wael Saab ◽  
Peter Racioppo ◽  
Anil Kumar ◽  
Pinhas Ben-Tzvi
Keyword(s):  
High Frequency ◽  
Experimental Validation ◽  
Anisotropic Friction ◽  
Confined Spaces ◽  
Model And Simulation ◽  
Body Dynamics ◽  
Two Generations ◽  
Simulation Results ◽  
Multi Body ◽  
Friction Analysis

SUMMARYThis paper presents the design, analysis, and experimental validation of a miniature modular inchworm robot (MMIR). Inchworm robots are capable of maneuvering in confined spaces due to their small size, a desirable characteristic for surveillance, exploration and search and rescue operations. This paper presents two generations of the MMIR (Version 1—V1 and Version 2—V2) that utilize anisotropic friction skin and an undulatory rectilinear gait to produce locomotion. This paper highlights design improvements and a multi-body dynamics approach to model and simulate the system. The MMIR V2 incorporates a slider-crank four-bar mechanism and a relative body revolute joint to produce high-frequency relative translation and rotation to increase forward velocity and enable turning capabilities. Friction analysis and locomotion experiments were conducted to assess the systems performance on various surfaces, validate the dynamic model and simulation results, and measure the maximum forward velocity. The MMIR V1 and V2 were able to achieve maximum forward velocities of 12.7 mm/s and 137.9 mm/s, respectively. These results are compared to reported results of similar robots published in the literature.

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