Dynamic Response Calculation Of Beam Subjected To Moving-pseudo Random Load

Pseudo-excitation Method (PEM) is a new analysis and numerical computation method of random dynamic response. By using this method, the stationary random vibration analysis can be transformed into harmonic vibration analysis, and for non-stationary random excitation, the response analysis can be transformed into deterministic time series analysis. It can simplify the calculation procedure a lot, and obtain high calculation accuracy. The computation of the random responses of some large scale and complicate structures, which is very difficult or impossible by using the traditional random vibration computation methods, can be carried out easily by PEM.The object of the thesis is to calculate the random dynamic response of a beam subjected to stationary, non-stationary and moving load. For the purpose, some formula and procedures were conducted by using the Pseudo-excitation Method combined with a Precise Integration method. Three numerical examples are given to compare the efficiency and accuracy between the methods developed by author and by LinThe thesis consists of three parts as follows:1. The dynamic response of a beam, which was subjected to a stationary random load, was calculated with Pseudo-excitation Method combined with the Precise Integration method. The theoretic solution and numeric solution were compared in order to verify its accuracy.2. The dynamic response of the beam, which was subjected to a non-stationary random load, was calculated with PEM. The theoretic solution and numerical solution were compared in order to verify its accuracy.3. The dynamic response of the beam, which was subjected to a moving load, was calculated. The theoretic solution and numerical solution were compared in...