The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A new active Hydraulically Interconnected Suspension (HIS) has been developed to compensate the limitations of conventional active suspensions such as expensive cost and high energy consumption. In this paper, the mechanism of proposed active HIS system has been briefly introduced. Fuzzy Logic Control, Fuzzy proportional-integral-derivative (PID) control and optimal linear quadratic regulator (LQR)...
The aim of this research is to provide an affordable active suspension system which can be widely applied to economical vehicles. In this paper, after giving a brief description of the mechanism of an active hydraulically interconnected suspension (HIS) system, a fuzzy logic controller (FLC) is implemented and empirically tuned on a sport utility testing vehicle fitted with the proposed active suspension...
Based on flexibility and converse piezoelectric effect of PVDF, a laminated PVDF actuator (LPA) with hyperbolical surface is designed and attached on a paraboloidal shell partially. Models of control forces are established according to thin flexible shell theory and membrane approximation, respectively. Analytical expressions of actuating forces and moments are derived and detailed parametric study...
In this paper, a new piezoelectric stack actuator is proposed, and the modeling and simulation are completed. Generally, piezoelectric stack can take significant compressive loads but cannot tolerate tension, so this new actuator is designed that can obtain obvious bilateral actuated outputs. This actuator is made of two piezoelectric stacks and a bilateral output device. By controlling the voltage...
This paper presents a novel design for demand dependent active suspension (DDAS) focusing on vehicle rollover control. Active suspensions take credit for improving ride comfort and handling performance, but to use active suspension in vehicle rollover control has not been widely investigated. The proposed active suspension design consists of four double direction hydraulic actuators, hydraulically...
Actuating characteristic of laminated PVDF actuator (LPA) partially covered on a beam is studied in this paper. Considering large deformation of the beam, coupled dynamic equations of the system are derived based on Hamilton principle. The formulas of nonlinear actuating forces are obtained and the parametric study is then conducted to evaluate the effects of geometric and physical properties of the...
There is littler study on the multi-layer piezoelectric actuator (MPA) for the active vibration control. In this paper, the experimental study on adaptive LMS-based active vibration control of cantilever honeycomb sandwich panel using multi-layer piezoelectric actuator is developed. The governing equations of the honeycomb panel included MPA are derived and the actuated forces of MPA are analyzed...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.