振動応答に着目した不規則振動波からパルス列への最適変換法 : 応答スペクトル評価による方法

概要

論文の詳細を見る
Generation method of the appropriate pulse trains which should be utilized as alternative excitation inputs for the structural response analysis in terms of various types of random excitation is presented. Criteria for getting optimum pulse trains are established based on the evaluation of the structural response spectra. Fundamental considerations are briefly made concerning about the comparison of the response properties through random motions with those through pulse trains taking a single-degree-of-freedom system as a structure model. Results obtained fairly well correspond to the experimental results using shaking test. Shape and number of the pulse trains can be optimally determined by the calculation of the difference of the response spectra among both input cases within the periods including main natural periods of structures. Optimization can be successfully carried out by taking the artificially simulated narrow-band excitations and also the nonstationary broad-band excitations like seismic motions as inputs for numerical examples.
社団法人日本機械学会の論文
1983-11-25