This project takes XX unit as the analysis object to study first-order vibration wind speed of turbine under shutdown vibration. The vortex-induced response is calculated and displacement resonant by fluid-solid coupling method. above techniques methods are forward-looking advanced in characteristics domestic turbines. On basis fluid dynamics analysis, suppression measures studied emphatically....

A previous study proposed an optimal vibration isolator for self-excitation, but the solution results showed a critical drawback basement input. Because plant system is exposed to self-excitation and input, characteristics must meet all requirements of both excitation cases. Two performance indices were introduced evaluate control capability over two cases, using theoretical linear model electr...

Abstract Purpose The objective of this paper is to investigate with simulations how non-linear spring and damper components isolators can be employed effectively reduce both the oscillations force transmitted ground in whole spinning range unbalanced rotating machines. Methods principal goal twofold. First, present a concise consistent formulation based on harmonic balance approach for vibratio...

Abstract This work studies the influence of a vibration isolator on response flexible base structure. Two strategies are compared: passive and active isolation (PVI, AVI). Although multiple advantages AVI over PVI techniques well known, their effect in structure has not to date been compared. interaction an important role performance general control system, especially when system is only or the...

Abstract: This paper is concerned with the construction of an improved sliding mode control for the active suspension system of a one-wheel car model subject to the excitation from a road profile. The active control is composed of the equivalent and the switching controls where an improved sliding surface is proposed. The active control force is generated by operating a pneumatic actuator due t...