<p><span>This paper presents an analysis and design of linear quadratic regulator for reduced order full car suspension model incorporating the dynamics actuator to improve system performance, aims at benefiting: Ride comfort, long life vehicle, stability vehicle. Vehicle’s road holding or handling braking good active safety driving pleasure, keeping vehicle occupants comfortable re...

Active suspension is considered to be a good way improve the ride comfort of high-speed trains. According output index requirements train’s active suspension, giant magnetostrictive actuator(GMA) proposed. This mainly because materials(GMM) has characteristics fast response, large force and high energy conversion rate. It verified by experiments that proportional excitation current. found in ex...

The semi-active suspension system can instantly change the damping coefficient depending in order to ‘stiffen’ or ‘soften’ the system. It will effectively and timely eliminate road disturbances on the car body. Thus, research on the semi-active suspension system is necessary. According to the performance test of the proposed adjustable damper, the different damping coefficients can be selected ...

This paper investigates the vibration attenuation problem of a vehicle suspension test rig, aiming at stabilizing its attitude. In the presence of nonlinear and unknown system dynamics, an accurate mathematical model of the test rig is not available. Active disturbance rejection control is employed to design a controller. An extended state observer is established to estimate the total disturban...

Glioma is one of the most common malignant tumors affecting the central nervous system. We screened active drugs from 12 classes to provide experimental data for the study of human glioma. Serum-free suspension clone formation was used to induce the formation of glioma stem‑like cells (GSLCs) from U251 cells. We screened active drugs from 12 class...

The paper focuses on the practical implementation of a new robust control method to an automotive active suspension system using skyhook and adaptive active force control (SANAFC) strategy. The overall control system essentially comprises four feedback control loops to cater for a number of specific taks. Neural networks (NN) with modified adaptive Levenberg-Marquardt (LM) learning algorithms w...

This paper deals with modeling and control of a semi-active suspension made up with a new industrial semi-active damper, in order to improve comfort and road-holding level of the vehicle. In the past few years, many control strategies have been developed using linear suspension models. A nonlinear model of the industrial damper is developed with physical equations and integrated in a quarter ve...

In this paper an H∞ controller is designed for a hydraulically actuated active suspension system of a half-modeled vehicle in a cascade feedback structure. Using the proposed structure the nonlinear behavior of actuator is reduced significantly. In the controller synthesis, a proportional controller is used in the inner loop, and a robust H∞ controller forms the outer loop. Two H∞ controllers a...

Electromagnetic active suspension is an important technique used in vehicles to improve ride comfort and handling stability. To achieve satisfactory performance, the control requires strong robustness against vehicle uncertainties external disturbances. The voice coil motor (VCM) applied suspension. A model considering actuator established. An controller based on disturbance rejection (ADRC) me...