Abstract To achieve better anti-vibration performance in a low frequency region and expand the range of vibration isolation, bilateral supported bio-inspired (BBAV) structure composed purely linear elements is proposed, inspired by motion form bird legs nonlinear extension compression muscles tendons. The kinematic relations dynamic model considering vertical rotational vibrations are establish...

Background Adipose-derived stem cell (ADSC)-based treatments have the potential to treat numerous soft-tissue pathologies. It would be beneficial to develop an efficient and reliable intraoperative, nonenzymatic method of isolating ADSCs for clinical use. This study aims to determine the (1) viability and proliferative capacity of ADSCs after exposure to vibrational energies and (2) efficacy of...

High-purity germanium (HPGe) is a vibration-sensitive, high-resolution detector. It has been found that microphonic noise induced by vibration and electromagnetic interference from EMC causes energy resolution degradation in HPGe detectors. In this paper, to enhance the of pulse tube-cooled high purity detector, passive isolation system for portable tube cooler (PTC) was employed investigated. ...

In the paper, the Electrorheological fluid(ERF) is embedded in the pneumatic vibration isolator and three kinds of control systems are designed, which experimental results are also compared. The first kind of the control system is the semi-active control system, which is designed for ERF controllable damper. The second kind of the control system is the active control system, which is designed f...

A time integration method for the equations of motion is developed based on Gauss implicit Runge-Kutta to high-accurate solving responses in structural vibration. The present possesses features unconditional stability and self-starting can achieve fourth-order accuracy displacement, velocity, acceleration simultaneously. algorithm a matrix form no need iterate calculation. convergent verified b...

tuned liquid dampers (tld) are among passive control devices that have been used to suppress the vibration of structures in recent years. these structures must be adequately presentable as an equivalent single degree of freedom system with long fundamental period. the tld, located at the top floors of the structure, can dissipate the external input energy into the system through the sloshing ef...

Vibration control and mitigation is an open issue in many engineering applications. Passive strategies was widely studied and applied in many contests, such as automotive, aerospatial, seismic and similar. One open question is how to choose opportunely devices parameters to optimize performances in vibration control. In case of isolators, whose the main scope is decoupling structural elements f...

Whole-spacecraft launch-vibration isolation systems are attractive for achieving the goal of better, faster, cheaper, and lighter small satellites by reducing design-load vibration-test specifications on-board components. In this study, a three-axis passive system, based on superelastic shape memory alloy (SMA) technology, was developed to significantly attenuate dynamic launch loads transmitte...

In earthquake resistance design of structures, two general concepts have been used. The first is to increase the capacity of the structures to resist the earthquake load effects (mostly horizontal forces) or to increase the dynamic stiffness such as the seismic energy dissipation ability by adding damping systems (both devices and/or structural fuses). The second concept includes seismic isolat...