Due to rising customer demands for driving comfort, the integration of controlled active and semi-active elements in modern vehicle suspension systems has increased considerably. A significant number of upper class vehicle suspensions is either equipped with continuously variable dampers or low bandwidth actuators. However, the combination of these suspension elements is not applied so far. In ...

This paper illustrates the mathematical modeling of passive suspension system and the control strategies for semi active suspension system. The Simulink software developed by Matlab is used to evaluate the control characteristics [1], for the same a 2 DOF quarter car model is used. The comparison and evaluation of control result are made using software-in-the-loop simulation (SILS) method. From...

purification of drinking and industrial water required usage of high molecular weight polymer to cause flocculation process of dispersed suspension of contaminants. polyelectrolytes, including ionic polyacrylamide are especially appropriate for these purposes, because in this case the suspension stability can be controlled by both steric and electrostatic forces. thus the influence of solution ...

This paper demonstrates the possibility to detect suspension failures of railway vehicles using a multiple-model approach from on-board measurement data. The railway vehicle model used includes the lateral and yaw motions of the wheelsets and bogie, and the lateral motion of the vehicle body, with sensors measuring the lateral acceleration and yaw rate of the bogie, and lateral acceleration of ...

Bicycle suspension systems have been designed to improve bicycle comfort Abstract and handling by dissipating terrain-induced energy. However, they may also dissipate the cyclist’s energy through small oscillatory movements, often termed ‘bobbing’, that are generated by the pedalling movements. This phenomenon is a major concern for competitive cyclists engaged in events where most of the time ...

the suspension system of a vehicle is one of the most important parts which is involved in the process of vehicle designing. when a vehicle suspension system is designed, the evaluation of its performance against the road disturbances such as shocks and bumps are very important. the most commonly used systems consist of four hydraulic jacks with mobility in vertical line with low speed and low ...