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.

scholarly journals An Improved Genetic Algorithm to Optimize Spatial Locations for Double-Wishbone Type Suspension System with Time Delay

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Qiang Li ◽  
Xiaoli Yu ◽  
Jian Wu
Keyword(s):  
Time Delay ◽  
Ride Comfort ◽  
Optimization Method ◽  
Front Wheel ◽  
Vehicle Speed ◽  
Improved Genetic Algorithm ◽  
Vehicle Performance ◽  
Front Suspension ◽  
Wheel Alignment ◽  
Spatial Locations

By taking account of double-wishbone independent suspension with two unequal-length arms, the coordinate values of articulated geometry are based on structural limitations and constraint equations of alignment parameters. The sensitivities of front wheel alignment parameters are analyzed using the space analytic geometry method with insight module in ADAMS® software. The multiobjective optimization functions are designed to calculate the coordinate values of hardpoints with front suspension since the effect of time delay due to wheelbase can be easily obtained by vehicle speed. The K&C characteristics have been investigated using GA solutions in the simulation environment. The camber angle decreases from 1.152° to 1.05° and toe-in angle reduces from 1.036° to 0.944°. The simulation results demonstrate that the suggested optimization method is able to satisfy the suspension motion to enhance ride comfort. Experimental results, obtained by K&C test bench, also indicate that the optimized suspension can track the desired trajectory while keeping the vehicle performance in various road conditions.

Modeling and Kinematics Simulation Analyze of Conventional Suspension with Double Trailing Arms for Light Off-Road Vehicles

2013 ◽  
Vol 312 ◽  
pp. 673-678 ◽  
Author(s):  
Rui Ling Wang ◽  
Jian Zhu Zhao ◽  
Guo Ye Wang ◽  
Xiao Kai Chen ◽  
Liang Li
Keyword(s):  
Working Conditions ◽  
Vertical Plane ◽  
Front Wheel ◽  
Road Vehicles ◽  
Steering Angle ◽  
Helical Springs ◽  
Kinematics Simulation ◽  
Body Dynamics ◽  
Suspension Model ◽  
Multi Body

To study the kinematics characteristics of conventional suspension with double trailing arms for light off-road vehicles, suspension model of a light off-road vehicle was established on multi-body dynamics software ADAMS/View, which has double trailing arms and helical springs, and make the suspension kinematics simulation for getting the caster angle and front-wheel steering angle curves on different working conditions. The results show that the double trailing arm lengths, the angles between double trailing arms and horizontal plane/vertical plane, bushing stiffness of the double trailing arms linking with frame are main parameters that affect the caster angle and front-wheel steering angle. The suspension model is rational.

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.

Solution of steering angle based on homogeneous transformation

2022 ◽  
pp. 095440702110724
Author(s):  
Farong Kou ◽  
Xinqian Zhang ◽  
Jiannan Xu
Keyword(s):  
Steering System ◽  
Steering Angle ◽  
Matlab Software ◽  
Design And Optimization ◽  
Body Model ◽  
Steering Mechanism ◽  
Wheel Alignment ◽  
Geometric Relation ◽  
Function Expression ◽  
Multi Body

Steering Angle is related to the design and optimization of steering mechanism and suspension, but it is not equal to the angle of knuckle around kingpin because of the existence of wheel alignment parameters. To calculate the steering angle, this paper derives based on homogeneous transformation its function expression by analyzing spatial geometric relation between the two angles and calculating coordinates related to steering trajectory of wheel center. Then, multi-body model of McPherson suspension with steering system is built and the calculation correctness is verified by comparing the function curve plotted by MATLAB software with the curve simulated by Adams/Car software. The calculation and simulation indicate that between the two angles, there is a ratio which is related to wheel alignment parameters and greater than 1.

Research on Vehicle Ride Comfort Based on Virtual Prototyping Technology

2011 ◽  
Vol 291-294 ◽  
pp. 2360-2363
Author(s):  
De Yang Chen ◽  
Feng Yan Yi
Keyword(s):  
High Performance ◽  
Ride Comfort ◽  
Simulation Analysis ◽  
Steering System ◽  
Front Suspension ◽  
The Road ◽  
Virtual Prototyping Technology ◽  
System Body ◽  
Multi Body ◽  
Body Dynamic

In this paper, based on some kind of Car as the prototype, by using the multi-body dynamic analysis software ADAMS, the author Uses ADAMS／CAR modules establishes front Suspension, Rear Suspension, steering system brake system,body,tires and other models, then assembled into vehicle model, Established B,E-class road model as entering the road for vehicle ride comfort simulation analysis. Vehicle on different road ride comfort simulation, According to international standard ISO2631 and the vehicle for evaluation of ride comfort, the car are proved to be high performance in the ride comfort．

Methods & Prospects of Research on Flexible Multi-Body Dynamics

2013 ◽  
Vol 353-356 ◽  
pp. 3284-3287
Author(s):  
Lin Xiao Yao ◽  
Lian Yang ◽  
Lin Jian Shangguan
Keyword(s):  
Numerical Calculation ◽  
Vibration Control ◽  
Research Method ◽  
Dynamical Equation ◽  
System Model ◽  
Body System ◽  
Body Dynamics ◽  
System Vibration ◽  
Three Stages ◽  
Multi Body

This paper summarized the research method of flexible multi-body system dynamics. Three stages of flexible multi-body system model are reviewed. The paper is especially summary on modeling method of flexible multi-body system, flexible multi-body dynamical equation numerical calculation and flexible multi-body system vibration control and so on. And the paper is looked forward to further study.

Influence of Inner Rubber Bushing Stiffness of the Lateral Rod on Rear Multi-Link Suspension Performance

2012 ◽  
Vol 443-444 ◽  
pp. 45-49
Author(s):  
Pei Qi Li ◽  
Xin Tian Liu
Keyword(s):  
Simulation Test ◽  
Radial Stiffness ◽  
Camber Angle ◽  
Body Dynamics ◽  
Rubber Bushing ◽  
Brake Force ◽  
Toe Angle ◽  
Torsion Stiffness ◽  
Multi Body ◽  
Suspension Performance

Rear multi-link suspension is built according to hard point parameters of a car. Using multi-body dynamics and suspension kinematics theory, the suspension performance were analyzed under the simulation test of parallel wheel travel, loading brake force after the inner rubber bushing stiffness of the lateral rod is changed. The conclusion is drawn that under the test of loading brake force, changing the axial and torsion stiffness of rubber bushing has no effect on the camber angle, total track and toe angle, a little effect on ride rate and wheel rate. Under the test of wheel travel, changing the axial and torsion stiffness has also no effect on the suspension performance; but the change of the radial stiffness has effect on the suspension performance, especially the ride rate and wheel rate.

scholarly journals Implications of Modelling One-Dimensional Impact by Using a Spring and Damper Element

2005 ◽  
Vol 219 (3) ◽  
pp. 299-305 ◽  
Author(s):  
A Jönsson ◽  
J Bathelt ◽  
G Broman
Keyword(s):  
Comparative Study ◽  
System Dynamics ◽  
Contact Forces ◽  
Commercial Software ◽  
Related Condition ◽  
One Dimensional ◽  
Incorrect Prediction ◽  
Body Dynamics ◽  
Force Element ◽  
Multi Body

A spring and damper contact force element is often used for modelling impact in multi-body dynamics. The related condition for transition between contact and non-contact is, however, inconsistently implemented in the literature and commercial software. This comparative study aims to clarify the implications of four commonly used transition conditions. Principal differences are discussed and, by simulation of a typical system, it is shown that there are significant differences in the dynamics of the system depending on the different conditions. Two of them give unrealistic contact forces and should imply incorrect prediction of system dynamics in most applications. This suggests that it is important to review results obtained from using these conditions and to eliminate them from commercial software. A discussion of the two other conditions culminates in a recommendation.

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