Modeling and Simulation of the Hydraulic Excitation System Based on the Power Bond Graph

2010 ◽  
Author(s):  
Junxia Li ◽  
Ziming Kou
Keyword(s):  
Modeling And Simulation ◽  
Bond Graph ◽  
Excitation System ◽  
Power Bond Graph

Dynamics Design of a Planar Controllable Five Bar Mechanism Based on Genetic Algorithm

2007 ◽  
Author(s):  
Ke Zhang
Keyword(s):  
Genetic Algorithm ◽  
Optimization Design ◽  
Optimization Method ◽  
Parallel Robot ◽  
Bond Graph ◽  
Dynamics Analysis ◽  
Hybrid Mechanism ◽  
Ga Algorithm ◽  
Power Bond Graph ◽  
Bond Graph Theory

A hybrid five bar mechanism is a typical planar parallel robot. It is a configuration that combines the motions of two characteristically different motors by means of a five bar mechanism to produce programmable output. Hybrid five bar mechanism is the most representative one of hybrid mechanism. In this paper, considering the bond graph can provide a compact and versatile representation for kinematics and dynamics of hybrid mechanism, the dynamics analysis for a hybrid five-bar mechanism based on power bond graph theory is introduced. Then an optimization design of hybrid mechanism is performed with reference to dynamic objective function. By the use of the properties of global search of genetic algorithm (GA), an improved GA algorithm is proposed based on real-code. Optimum dimensions are obtained assuming there are no dimensional tolerances or clearances. Finally, a numerical example is carried out, and the simulation result shows that the optimization method is feasible and satisfactory in the design of hybrid mechanism.

Dynamic Modeling, Theory and Application Using Bond Graph

2015 ◽  
Vol 4 (1) ◽  
Author(s):  
Bharat Raj Singh ◽  
Manoj Kumar Singh
Keyword(s):  
Dynamic System ◽  
Modeling And Simulation ◽  
Vehicle Dynamics ◽  
Bond Graph ◽  
Vehicle Dynamic ◽  
Shape Factors ◽  
Turn Angle ◽  
System Equation ◽  
Relative Contribution ◽  
Result Analysis

The paper describes the technique for presenting quantitative and systematic modeling and simulation using Bond Graph for the vehicle dynamic system. It is based on the relative contribution of the new generation of a system equation, expression, result analysis and simulation through graphical display. The portioning algorithm can be employed to the existing automated modeling techniques for efficient, accurate simulation towards the design of the vehicle dynamic system. The design of control oriented four wheeled vehicle is widely recognized to be a very challenging task. This allows accounting for the driver turn angle which necessitates about visualizing the real driving behavior and its effects on the overall vehicle dynamic system. The study also illustrates an introduction to vehicle dynamics with emphasis towards the influence of its various properties. It also discusses the steady–state behavior of simple automobile models and transient motion when small and large steering inputs and other disturbances are employed. The effect of various shape factors and type of characteristics on vehicle handling properties is analysed. In order to design a controller, a good model representing the dynamic system is needed. From the input parameters considered, the results of the modeling and simulation of vehicle dynamics through the Bond Graph are found efficient and more accurate.

Modeling and Simulation of Hydraulic Power-Assistant Steering System Based on Power Bond Graph Method

2012 ◽  
Vol 482-484 ◽  
pp. 452-456 ◽  
Author(s):  
Gui Hua Fang ◽  
Chao Chen ◽  
Jin Feng Liu
Keyword(s):  
Performance Analysis ◽  
Software Package ◽  
Theoretical Basis ◽  
Optimization Design ◽  
Steering System ◽  
Bond Graph ◽  
Hydraulic Power ◽  
Graph Method ◽  
Power Bond Graph ◽  
Dynamical Properties

The structure and the operating principle of automobile hydraulic power-assistant steering system (HPS) are studied. The state-pace equation of the system is established by applying power bond graph method. The simulation of HPS is carried on in Simulink which is a software package of Matlab, and the dynamical properties of HPS are analyzed under different conditions. The simulation consequences provide theoretical basis for performance analysis and optimization design of HPS.

Sign in / Sign up

Export Citation Format

Share Document