The Application of Bond Graph Theory on Automobiles Modeling

2011 ◽  
Vol 120 ◽  
pp. 339-342
Author(s):  
Chuan Yin Tang ◽  
Xin Yu Hou ◽  
Hua Yin ◽  
Ying Zhang
Keyword(s):  
Graph Theory ◽  
Differential Equations ◽  
Degrees Of Freedom ◽  
Digital Simulation ◽  
Bond Graph ◽  
State Equation ◽  
Vehicle Suspension ◽  
Bond Graphs ◽  
Suspension Model ◽  
Bond Graph Theory

Based on the bond graph theory, the acquisition of state equation of vehicle suspension is presented. Set an example to a five degrees of freedom vehicle suspension model ,the simulated results are obtained with the aid of Matlab/Simulink software. Bond graphs are equation based , and are superior to traditional differential equations, they can provide the dynamic digital simulation in time and frequency domain, they can present the static simulation and omit the transition and class-decreasing process which is needed for traditional differential equations.

scholarly journals Energy Harvesting from Vehicle Suspension System by Piezoelectric Harvester

2019 ◽  
Vol 2019 ◽  
pp. 1-10
Author(s):  
Zhen Zhao ◽  
Tie Wang ◽  
Baifu Zhang ◽  
Jinhong Shi
Keyword(s):  
Energy Harvesting ◽  
Degrees Of Freedom ◽  
Inertial Mass ◽  
Vehicle Suspension ◽  
Roughness Coefficient ◽  
Generation Model ◽  
Vehicle Speed ◽  
Suspension Systems ◽  
Suspension Model ◽  
Piezoelectric Harvester

In this paper, a new type of piezoelectric harvester for vehicle suspension systems is designed and presented that addresses the current problems of low energy density, vibration energy dissipation, and reduced energy harvesting efficiency in current technologies. A new dual-mass, two degrees of freedom (2-DOF), suspension dynamic model for the harvester was developed for the inertial mass and the force of the energy conversion component by combining with the piezoelectric power generation model, the rotor dynamics model, and the traditional 2-DOF suspension model. The influence of factors such as vehicle speed, the parameters of the harvester, and road classification on the root mean square (RMS) of the generated electric power is discussed. The results show that the RMS increases with the increase of the speed of the vehicle, the thickness and length of piezoelectric patches and magnetic slabs, and the residual flux density of magnets and road roughness coefficient and with the decrease of the width of piezoelectric patches and magnetic slabs and the space between the stator ring and the rotator ring. In the present research, a power of up to 332.4 W was harvested. The proposed model provides a powerful reference for future studies of energy harvesting from vehicle suspension systems.

Chaos Control of Vehicle Nonlinear Suspension System with Multi-Frequency Excitations by Nonlinear Feedback

2011 ◽  
Vol 55-57 ◽  
pp. 1156-1161
Author(s):  
Jing Yue Wang ◽  
Hao Tian Wang ◽  
Li Min Zheng
Keyword(s):  
Degrees Of Freedom ◽  
Ride Comfort ◽  
Control Method ◽  
Chaotic Behavior ◽  
Time History ◽  
Suspension System ◽  
Vehicle Suspension ◽  
Nonlinear Feedback ◽  
Suspension Model ◽  
Vehicle Suspension System

Vehicle suspension system with hysteretic nonlinearity has obvious nonlinear characteristics, which directly cause the system to the possibility of existence of bifurcation and chaos. Two degrees of freedom for the 1/4 body suspension model is established and the behavior of the system under road multi-frequency excitations is analyzed. In the paper, it reveals the existence of chaos in the system with the Poincaré map, phase diagram, time history graph, and its chaotic behavior is controlled by nonlinear feedback. Numerical simulation shows the effectiveness and feasibility of the control method with improved ride comfort. The results may supply theoretical bases for the analysis and optimal design of the vehicle suspension system.

Dynamic characteristics and energy consumption modelling of machine tools based on bond graph theory

Energy ◽  
2020 ◽  
Vol 212 ◽  
pp. 118767
Author(s):  
Wei Liu ◽  
Li Li ◽  
Wei Cai ◽  
Congbo Li ◽  
Lingling Li ◽  
...  
Keyword(s):  
Graph Theory ◽  
Energy Consumption ◽  
Dynamic Characteristics ◽  
Machine Tools ◽  
Bond Graph ◽  
Bond Graph Theory

scholarly journals Modal Analysis of In-Wheel Motor-Driven Electric Vehicle Based on Bond Graph Theory

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Di Tan ◽  
Qiang Wang ◽  
Yanshou Wu
Keyword(s):  
Graph Theory ◽  
Modal Analysis ◽  
Electric Vehicle ◽  
Graph Model ◽  
Deformation Mode ◽  
Bond Graph ◽  
Modular Modeling ◽  
Vibration Model ◽  
Momentum Mode ◽  
Bond Graph Theory

A half-car vibration model of an electric vehicle driven by rear in-wheel motors was developed using bond graph theory and the modular modeling method. Based on the bond graph model, modal analysis was carried out to study the vibration characteristics of the electric vehicle. To verify the effectiveness of the established model, the results were compared to ones computed on the ground of modal analysis and Newton equations. The comparison shows that the vibration model of the electric vehicle based on bond graph theory not only is able to better compute the natural frequency but also can easily determine the deformation mode, momentum mode, and other isomorphism modes and describe the dynamic characteristics of an electric vehicle driven by in-wheel motors more comprehensively than other modal analysis methods.

Bibliography of bond graph theory and application

1991 ◽  
Vol 328 (5-6) ◽  
pp. 1067-1109 ◽  
Author(s):  
P.C. Breedveld ◽  
R.C. Rosenberg ◽  
T. Zhou
Keyword(s):  
Graph Theory ◽  
Bond Graph ◽  
Bond Graph Theory
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