Using MATLAB SIMULINK software we carry on the analysis and obtained the frequency response characteristic of the suspension system under the input of the stochastic road surface.

This paper makes use of PID control, Fuzzy- PID control based on single parameter these two control strategies to simulate the system's model. Compared with common vehicle, the results of simulation show that the vehicle equipped with the electromagnetic power steering system has better yaw velocity frequency response characteristic under condition with step input of steering wheel, so it has more betterhandling stability;

Using MATLAB SIMULINK software we carry on the analysis and obtained the frequency response characteristic of the suspension system under the input of the stochastic road surface.

This paper makes use of PID control, Fuzzy- PID control based on single parameter these two control strategies to simulate the system's model. Compared with common vehicle, the results of simulation show that the vehicle equipped with the electromagnetic power steering system has better yaw velocity frequency response characteristic under condition with step input of steering wheel, so it has more betterhandling stability;

Using MATLAB SIMULINK software we carry on the analysis and obtained the frequency response characteristic of the suspension system under the input of the stochastic road surface.

This paper makes use of PID control, Fuzzy- PID control based on single parameter these two control strategies to simulate the system's model. Compared with common vehicle, the results of simulation show that the vehicle equipped with the electromagnetic power steering system has better yaw velocity frequency response characteristic under condition with step input of steering wheel, so it has more betterhandling stability;

It is shown that diffusants which take part in surface reactions of finite rate or are subject to reversible trapping within the solid have a frequency response characteristic of the process involved.

A composite method to determine the tapping coefficients along with the coefficients of the subfilter to approximate overall frequency response characteristic is proposed.

Theoretical studies have been made on the effective ionization rates of electrons and holes of the device, I-V characteristic and the frequency response characteristic of the AlxGa1-xAs/GaAs superlattice p+-i-n+ structure.

Probe bandwidth refers to the frequency response characteristic of a probe and specifies the normal operating frequency range of the probe.

In contrast to this, phonograph preamp circuits not only scale the signal, they also impart a specific frequency response characteristic to it.

The matrixes of road spectrum and the frequency response characteristics of vibration isolation system of double axle and four-coupled vehicles are established according torandom theory as well as considering those comprehensive factors such as road condition, vehicle dimension and moving speed, structure indexes, and so on. A general formula of thepower spectral density and square mean value of displacement and acceleration of the vertical, lateral, longitudinal vibrations of double axle vehicles are...

The matrixes of road spectrum and the frequency response characteristics of vibration isolation system of double axle and four-coupled vehicles are established according torandom theory as well as considering those comprehensive factors such as road condition, vehicle dimension and moving speed, structure indexes, and so on. A general formula of thepower spectral density and square mean value of displacement and acceleration of the vertical, lateral, longitudinal vibrations of double axle vehicles are also developed.

In order to obtain critical speed when articutaled-frame vehicles(AFV) drive stability, the driving stability of AFV with hydraulic steering system moving along a straight or a small curvature road was studied.Idealized into a model composed of a front and rear body,taking both the elastic characteristics of hydraulic steering system and tire ride slip behavior into account, a linear dynamic equation system for the driving stability of AFV was established.Two methods of judging the driving stability of...

In order to obtain critical speed when articutaled-frame vehicles(AFV) drive stability, the driving stability of AFV with hydraulic steering system moving along a straight or a small curvature road was studied.Idealized into a model composed of a front and rear body,taking both the elastic characteristics of hydraulic steering system and tire ride slip behavior into account, a linear dynamic equation system for the driving stability of AFV was established.Two methods of judging the driving stability of AFV were presented:the eigenvalue method and the method of steady response under constant input,and the expressions of stability factor and critical vehicle speed were derived.Two forms of instability of AFV were shown.The frequency response characteristics were discussed preliminarily.Two methods on sensitivity analysis for dynamic correction of AFV critical speed were suggested,i.e. direct derivation method based on the steady response and eigenvalue method based on complex eigenvalue analysis.Finally,the critical speed of the ZL10 loader was calculated as an example.

An efficient method to predict and reduce the radiated noise from the oil pan of a diesel engine is presented.The dynamic characteristic,frequency response characteristic and radiated sound power level of original oil pan is predicted by FEM/BEM with consideration of the fluid/structure interaction between oil and pan.Two countermeasures of adding strengthening ribs and using composite material are proposed,which effectively lower the radiated sound power level of oil pan.