WebMethod 514.6 random vibration test. This thesis details the methods and results of both computational and experimental techniques to ensure the design would pass random vibration testing. Background is provided on random vibration theory and the application of various statistical methods to determine a structure's fatigue life. WebThe exact solutions of free vibration of thin plates with two opposite edges simply supported boundary conditions are introduced. Then, the full analytical procedure for random vibration analysis of the plate is established by using a pseudo excitation method (PEM) that can consider all modal auto-correlation and cross-correlation terms.
Pseudo-excitation-method-based sensitivity analysis and …
WebAug 19, 2024 · The main feature of the pseudoexcitation method is to transform stationary random response analysis into a series of steady-state harmonic response analysis. Taking stationary random vibration with multiple degrees of freedom as an example, this paper elaborates the basic ideas of this method. WebOct 4, 2024 · The pseudo-excitation method is used to establish the dynamic equations of motion, and the separation iteration method is used to solve the equations, so as to obtain the power spectral density of the wheel-rail interaction forces. The wheel-rail interaction forces are obtained by using a modulation function and the harmonic superposition … goodwill furniture donation pick up tampa
Response of train-bridge system under intensive seismic excitation …
WebDec 30, 2015 · Pseudo excitation method (PEM) proposed by Lin et al. has been widely used in linear analysis of random vibration owing to its accuracy and high efficiency. In PEM, the random excitation is transformed into pseudo excitation; then, stochastic equations of motion can be solved using numerical integration. WebJun 27, 2024 · A framework is developed in this article to predict the nonstationary random ground vibrations induced by high-speed trains, by combining the pseudo-excitation method with the two-and-a-half-dimensional finite element method. This … WebPast historical earthquake events from neighbouring countries have been proven to be disastrous. Building in the aftermath of an earthquake may reduce structural reliability, posing risk upon re-occupation of the building. Shock absorber viscous dampers were installed on a specific structure storey that could reduce the spectral acceleration and … chevy mileage record