scholarly journals Design and Performance Analysis of the Hydropneumatic Suspension System for a Novel Road-Rail Vehicle

2021 ◽  
Vol 11 (5) ◽  
pp. 2221
Author(s):  
Bonan Qin ◽  
Riya Zeng ◽  
Xiaoman Li ◽  
Jue Yang
Keyword(s):  
Optimization Design ◽  
Suspension System ◽  
The Road ◽  
Rail Vehicle ◽  
Switch Operation ◽  
And Performance ◽  
Suspension Model ◽  
Multi Body ◽  
And Control ◽  
Gas Volume

Road-rail vehicles built on traditional vehicle chassis can only switch operation modes at particular areas such as level crossings, thus limiting the working scope and efficiency of routine railway inspection and maintenance. This paper proposes a novel tracked chassis for the road-rail vehicle with a multi-cylinder hydropneumatic suspension system, which can better adapt to rough terrains and enhance the vehicle ride performance. Based on this hydropneumatic suspension design, the single-cylinder mathematical model is derived and validated by experimental data. An in-plane multi-body dynamics (MBD) model and road model are established, combined with the hydropneumatic suspension model, including the LuGre friction force. Virtual tests are conducted to investigate the effects of different initial gas volumes, varied diameters and damping pipe lengths on the ride performance. The results indicate that improper damping pipe diameter and charge gas volume will deteriorate the ride performance, which provides a useful reference for the optimization design and control of the hydropneumatic system.

Dynamic Simulation and Experimental Analysis on Ride Comfort Performance of Tracked Vehicle

2011 ◽  
Vol 105-107 ◽  
pp. 500-503
Author(s):  
Wen Rui Wang ◽  
Han Chen ◽  
Sai Du ◽  
Bo Yang
Keyword(s):  
Ride Comfort ◽  
Model Simulation ◽  
Influence Factors ◽  
Suspension System ◽  
Vehicle Suspension ◽  
Tracked Vehicle ◽  
The Road ◽  
Body Model ◽  
And Performance ◽  
Multi Body

A comprehensive nonlinear vehicle model of a tracked vehicle suspension is established by using multi-body dynamics software Recurdyn, which is used to be simulated ride comfort dynamic response. In the paper, the multi-body model dynamics vibration characters of vehicle suspension is simulated, which is accomplished by testing the model on the different roads (such as level-D,E&F Road) by different vehicle riding speed. The influence factors about ride comfort are found by the stimulation, which are the road level,the velocity of the vehicle and other parameters of the suspension system. The experiment about the vehicle ride comfort performance proves that using the multi-body model simulation in the paper could be helpful to select appropriate suspension system parameters in the structure and performance design about tracked vehicle suspension, which could give theory bases about suspension active controlling strategy of the suspension.

SUSPENSION OPTIMIZATION USING DESIGN OF EXPERIMENT (DOE) METHOD ON MSC/ADAMS-INSIGHT

2015 ◽  
Vol 75 (8) ◽  
Author(s):  
N. Ikhsan ◽  
R. Ramli ◽  
A. Alias
Keyword(s):  
Design Of Experiment ◽  
Suspension System ◽  
Optimization Process ◽  
Data Set ◽  
Pareto Chart ◽  
Axis Direction ◽  
Parallel Movement ◽  
Suspension Model ◽  
Vehicle Suspension System ◽  
Multi Body

In this paper, the optimum setting for suspension hard points was determined from a half vehicle suspension system. These optimized values were obtained by considering the Kinematic and Compliance (K&C) effects of a verified PROTON WRM 44 P0-34 suspension model developed using MSC/ADAMS/CAR. For optimization process, multi body dynamic software, MSC/ADAMS/INSIGHT and Design of Experiment (DoE) method was employed. There were total of 60 hard points (factors) in x, y and z axis-direction for both front and rear suspension while toe, camber and caster change were selected as the objective function (responses) to be minimized. The values of 5 mm, 10 mm and 15 mm were used as relative values of factor setting to determine the factor range during optimization process. The hard point axis-direction that has the most effects on the responses was identified using the Pareto chart to optimize while the rests were eliminated. As expected result, a new set of suspension system model with a selected of Kinematic and Compliance (K&C) data set were obtained, and compared with the verified simulation data when subjected to the vertical parallel movement simulation test to determine the best setting and optimum suspension hard points configuration.  

Research on Running Stability of the Rail Vehicle Based on SIMPACK

2013 ◽  
Vol 328 ◽  
pp. 589-593
Author(s):  
Li Hua Wang ◽  
An Ning Huang ◽  
Guang Wei Liu
Keyword(s):  
Dynamic Model ◽  
Optimization Design ◽  
Dynamic Performance ◽  
Running Speed ◽  
Design And Optimization ◽  
Rail Vehicle ◽  
Body Dynamics ◽  
Multi Body ◽  
Body Dynamic ◽  
Track Irregularities

There are higher requirements on running stability of the rail vehicle with the incensement of the running speed. The running stability is one of the important indicators of evaluating the dynamic performance of the rail vehicle. In this paper, the whole multi-body dynamic model of the rail vehicle was proposed based on the theory of multi-body dynamics in the software of Simpack. And the lateral and vertical vibrate accelerations of the rail vehicle were simulated when it was inspired by the track irregularities. Then the running stabilities of the rail vehicle were estimated accurately. This will propose basis on the improving design and optimization design of the whole rail vehicle.

Optimization Design of Vehicle Front Suspension Structure Parameters Using DOE Method

2011 ◽  
Vol 120 ◽  
pp. 375-380 ◽  
Author(s):  
Jin Zhi Feng ◽  
Jiang Tao Song ◽  
Wei Hua Zhu
Keyword(s):  
Optimization Design ◽  
Model Simulation ◽  
Design Method ◽  
Positive Development ◽  
Structure Parameters ◽  
Front Suspension ◽  
Toe Angle ◽  
Suspension Model ◽  
Multi Body ◽  
Suspension Structure

Based on Multi-body system Dynamic theory, front suspension model is established by using ADAMS/Car, and then the validation is finished according to suspension K&C test project. Through the model simulation, the sensitivity of structure parameters to suspension kinematics characteristics has been analyzed and then the most sensnetive ones have been sorted out. The suspension structure geometry parameters are optimized by the application of DOE method based on virtual prototype technology. The parallel travel simulation results are as follows: the values of camber angle, toe angle, kingpin inclination angle, steer angle and lift/dive are reduced, and the values of caster angle are increased slightly with the optimized suspension. Consequently, the optimized suspension is more conducive to vehicle handling stability compared with the original one. This optimization design method provides the technical support for suspension positive development.

scholarly journals Design and Manufacturing of Leaf and Coil Suspension

2020 ◽  
Vol 3 (9) ◽  
pp. 75-77
Author(s):  
V. Chandra Bose ◽  
V. Rajasimman ◽  
R. Gokul Prabu ◽  
K. Har Govind
Keyword(s):  
Material Selection ◽  
Experimental Testing ◽  
Suspension System ◽  
The Body ◽  
Design Parameters ◽  
Leaf Spring ◽  
The Road ◽  
Almost All ◽  
Simple Assembly ◽  
And Control

The suspension system of an automobile separates the wheel/axle assembly from the body. The primary function of the suspension system is to isolate the vehicle structure from shocks and vibration due to irregularities of the road surface and to maintain contact with the surface thereby providing traction and control. Leaf spring is the preferred type of suspension system in almost all light and heavy commercial and transport vehicles. Leaf spring used in many vehicles due to having some main characteristics which are economical construction, uniformly distributed load, simple assembly in the vehicle and forgiving on use in rough terrain. In this paper we would like to take a look on the leaf spring, its design parameters and analysis. The paper is based on material selection, designing, experimental testing and load analysis etc.

Heavy-Duty Truck: Inverse Dynamics and Performance Control

2007 ◽  
Author(s):  
V. V. Vantsevich ◽  
A. D. Zakrevskij ◽  
S. V. Kharytonchyk
Keyword(s):  
Inverse Dynamics ◽  
Integrated Control ◽  
Fuel Efficiency ◽  
Rolling Resistance ◽  
Heavy Duty ◽  
Math Model ◽  
The Road ◽  
Heavy Duty Truck ◽  
And Performance ◽  
Multi Body

Inverse dynamics approach has been developed to optimize a highway, heavy-duty truck vehicle dynamics and performance. Using the developed approach, a math model of the multi-body truck system was developed to optimize power distributions to the drive wheels in probabilistic road conditions including macro- and micro-profiles of the road, distributions of the friction coefficient and rolling resistance. The optimization of wheel power distributions was treated as a multi-criterion problem to provide the truck with required energy/fuel efficiency, traction and velocity operational properties, turnability, stability of motion, and handling. Criteria of the listed truck operational properties were organized in a computer algorithm and computer simulations were implemented. Based on optimal combinations of wheel power distributions, an algorithm for integrated control of driveline power dividing units, wheel brakes and fuel feeding was developed.

Modeling and Control of a Nonlinear Active Suspension Using Multi-Body Dynamics System Software

2014 ◽  
Vol 67 (1) ◽  
Author(s):  
M. Fahezal Ismail ◽  
Y. M. Sam ◽  
S. Sudin ◽  
K. Peng ◽  
M. Khairi Aripin
Keyword(s):  
Ride Comfort ◽  
Active Suspension ◽  
Suspension System ◽  
Ride Quality ◽  
System Software ◽  
Composite Nonlinear Feedback ◽  
Modeling And Control ◽  
Body Dynamics ◽  
Multi Body ◽  
And Control

This paper describes the mathematical modeling and control of a nonlinear active suspension system for ride comfort and road handling performance by using multi-body dynamics software so-called CarSim. For ride quality and road handling tests the integration between MATLAB/Simulink and multi-body dynamics system software is proposed. The control algorithm called the Conventional Composite Nonlinear Feedback (CCNF) control was introduced to achieve the best transient response that can reduce to overshoot on the sprung mass and angular of control arm of MacPherson active suspension system. The numerical experimental results show the control performance of CCNF comparing with Linear Quadratic Regulator (LQR) and passive system. 

scholarly journals Research on the Effects of Hydropneumatic Parameters on Tracked Vehicle Ride Safety Based on Cosimulation

2017 ◽  
Vol 2017 ◽  
pp. 1-10
Author(s):  
Shousong Han ◽  
Zhiqiang Chao ◽  
Xiangbo Liu
Keyword(s):  
Optimal Design ◽  
Multibody Dynamics ◽  
Tracked Vehicle ◽  
The Road ◽  
Suspension Parameters ◽  
Charge Pressure ◽  
Suspension Model ◽  
Test Verification ◽  
And Control ◽  
Evaluation Parameters

Ride safety of a tracked vehicle is the key focus of this research. The factors that affect the ride safety of a vehicle are analyzed and evaluation parameters with their criteria are proposed. A multibody cosimulation approach is used to investigate the effects of hydropneumatic parameters on the ride safety and aid with design optimization and tuning of the suspension system. Based on the cosimulation environment, the vehicle multibody dynamics (MBD) model and the road model are developed using RecurDyn, which is linked to the hydropneumatic suspension model developed in Lab AMESim. Test verification of a single suspension unit is accomplished and the suspension parameters are implemented within the hydropneumatic model. Virtual tests on a G class road at different speeds are conducted. Effects of the accumulator charge pressure, damping diameter, and the track tensioning pressure on the ride safety are analyzed and quantified. This research shows that low accumulator charge pressure, improper damping diameter, and insufficient track tensioning pressure will deteriorate the ride safety. The results provide useful references for the optimal design and control of the parameters of a hydropneumatic suspension.

Dynamic Optimization of a Single-Seater Car Suspension System

2014 ◽  
Vol 658 ◽  
pp. 147-152
Author(s):  
Vlad Totu ◽  
Cătălin Alexandru
Keyword(s):  
Dynamic Optimization ◽  
Suspension System ◽  
Software Environment ◽  
Front Suspension ◽  
The Road ◽  
Car Suspension ◽  
Design Variables ◽  
Systems Software ◽  
Road Profile ◽  
Multi Body

This work deals with the multi-objective dynamic optimization of the suspension system used for the front wheels of a single-seater vehicle. A half-car model is developed, considering the front suspension system mounted, while the rear suspension is replaced with a fictive spherical joint that is placed at the rear axle level. The purpose of the dynamic optimization is to minimize the chassis oscillations (yaw, pitch and roll), the monitored value for each design objective being the root mean square (RMS) during the dynamic simulation. The locations of some important attachments from the suspension system are used as design variables for the dynamic optimization. The dynamic model is analyzed in the passing over bumps regime, the wheels being anchored on driving actuators, whose motion simulate the road profile. Specific modules of the MBS (Multi-Body Systems) software environment MSC.ADAMS are used in this study.

Sign in / Sign up

Export Citation Format

Share Document