scholarly journals Modeling and Simulation of the Vibration Characteristics of the In-Wheel Motor Driving Vehicle Based on Bond Graph

2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
Di Tan ◽  
Qiang Wang
Keyword(s):  
Modeling And Simulation ◽  
Bond Graph ◽  
Vibration Characteristics ◽  
Simplified Model ◽  
Modeling And Analysis ◽  
Vibration Model ◽  
Class B ◽  
Before And After ◽  
Driving Condition ◽  
Bond Graph Theory

Bond graph theory is applied to the modeling and analysis of the vibration characteristics of the in-wheel motor driving vehicle. First, an 11-degree-of-freedom vibration model of the in-wheel motor driving vehicle is established based on bond graph, and then the correctness of the model is verified. Second, under the driving condition of class B road excitations and a speed of 50 Km/h, the vibration characteristics of the in-wheel motor driving vehicle are simulated and analyzed, and the activity of each part in the system is then calculated. Third, these parts that have less of an effect on the vibration characteristics of an in-wheel motor driving vehicle are identified according to the magnitude of the activity, and then the model is simplified by removing these parts. Finally, the reliability of the simplified model is verified by comparing the vibration characteristics of the model before and after simplification. This study can provide a method for the modeling and simulation of the vibration characteristics of the in-wheel motor driving vehicle.

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.

Lateral Vibration Research for Railway Deck Steel Plate Bridges

2011 ◽  
Vol 243-249 ◽  
pp. 1646-1650
Author(s):  
Wen Ping Li ◽  
Shu Li Chen ◽  
Mu Biao Su
Keyword(s):  
Steel Plate ◽  
Lateral Vibration ◽  
Vibration Model ◽  
Hunting Motion ◽  
Before And After ◽  
Vibration Mechanism ◽  
Track Irregularity ◽  
Lateral Reinforcement ◽  
Resonant Velocity

In this paper, the vehicle-bridge lateral vibration mechanism was analyzed; the vehicle-bridge vibration model was built and the lateral reinforcement schemes of open steel plate bridges were designed. Numbers of analysis were carried out for the lateral vibration of 40m deck steel plate bridges before and after reinforcement, under input of random artificial hunting waves and track irregularity. The results showed that, the frequency of hunting motion is approaching loaded frequency of the girder. The larger lateral amplitude appears on the bridge when the hunting wavelength is around 8~9m and the velocity of the train is around 55~70km/h. The wavelength is longer, the resonant velocity of the bridge is higher.

Thermal-hydraulic modeling and analysis of spool valve with sloping U-shape notch by bond graph

2015 ◽  
Vol 22 (11) ◽  
pp. 4205-4212
Author(s):  
Lei Lou ◽  
Wan-rong Wu ◽  
Zhao-Qiang Wang ◽  
Xiang-jing Liang
Keyword(s):  
Hydraulic Modeling ◽  
Bond Graph ◽  
Modeling And Analysis ◽  
Thermal Hydraulic Modeling ◽  
Spool Valve

Bond Graph Modeling and Analysis of HEV System Based on Ravigneaux Planetary Mechanism

2013 ◽  
Vol 724-725 ◽  
pp. 1402-1408
Author(s):  
Li He Xi ◽  
Hong Wei Chen ◽  
Xin Zhang
Keyword(s):  
Bond Graph ◽  
Structural Form ◽  
Graph Models ◽  
Modeling And Analysis ◽  
Electric System ◽  
Operating Modes ◽  
Graph Modeling ◽  
Time Requirements ◽  
Bond Graph Modeling ◽  
Planetary Mechanism

The bond graph method is used to analyse and model dynamics of hybrid electric system based on Ravigneaux Planetary Mechanism. Bond graph models are built in different structural form, general equations of torque and speed are derived, and operating modes achieved in different structural form are in consideration. At the same time, requirements of control system in different operating modes are illustrated and analysed, which help lay the foundations for modeling and simulation of HEV system based on Ravigneaux Planetary Mechanism.

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