This study introduces an online reconfigurable road-adaptive semi-active suspension controller that reaches the performance objectives with satisfying dissipativity constraint. The concept of model is based on a nonlinear static Magnetorheological (MR) damper considering bi-viscous and hysteretic behaviors damper. input saturation problem has been solved by using proposed method in literature a...

High tall buildings are more susceptible to dynamic excitations such as wind and seismic excitations. In this paper, design procedure and some current applications of tuned mass damper (TMD) were studied. TMD was proposed to study response of 20 storey height building to seismic excitations using time history analysis with and without the TMD. The study indicates that the response of structur...

the rotational friction dampers can be improved the seismic behavior of the steel structures, and they can be reduced the internal forces in the bracing members, columns and the other structural members. in this research, a simple method for modeling and analysis of braced frames equipped by these dampers is proposed. the proposed model describes seismic behavior of dampers very well and it is ...

In this paper, we describe the design and manufacturing of a viscous inertial mass-damper (VIMD) prototype. The damper parameters, mass, damping coefficient can be continuously adjusted. Experimental validations were carried out on VIMD with various parameters scaled sagged cable 19.47 m long for vibration mitigation, along simulation study using finite element method (FEM). experimental result...

Abstract In this paper, a hybrid mass damper (HMD) and its hyperstability thanks to power flow approach are studied. The HMD proposed combines an active control system with optimal passive device. initial is electromagnetic Tuned Mass Damper (TMD) the law modified velocity feedback phase compensator. resulting controller theoretically hyperstable ensures fail-safe behavior. Experiments performe...

he present paper deals with the study of static and dynamic analysis of transmission line tower (X type of bracing system). A typical type of transmission line tower carrying 220KV single circuit conductor is chosen as case study existing in bijapur district. The analysis and modeling of tower is carried out using FE based ANSYS software. The model is created in CATIA and then imported to ANSYS...

This article proposes a design method for producing H control performance for structural systems using the Tagagi-Sugeno (T-S) fuzzy model. A structural system with a tuned mass damper is modeled using a T-S type fuzzy model. Using the parallel distributed compensation (PDC) scheme, we design a nonlinear fuzzy controller for the tuned mass damper system. A sufficient stability condition for the...

Abstract Inerter-based vibration absorbers (IVAs), such as the tuned-mass-damper-inerter (TMDI), have become popular in recent years for earthquake protection of building structures. Previous studies using linear structural models shown that IVAs can achieve enhanced suppression, but at expense increased control forces exerted from IVA to host structure. The authors recently developed a bi-obje...

Transmission of vibrations into the cabin while driving and general comfort driver is essential for agricultural heavy-duty vehicles. Due to long working hours rough terrain during operation, reduced attention or health problems may occur when significant are transferred from vehicle chassis driver. One modern damping systems which can drastically minimise vibration transmission semi-active sus...

semi-active base isolation system has been proposed mainly to mitigate the base drift of isolated structures while in most cases, its application causes the maximum acceleration of superstructure to be increased. in this paper, designing optimal semi-active base isolation system composed of linear base isolation system with low damping and magneto-rheological (mr) damper has been studied for co...