Identification of external force distribution utilizing nonlinear vibration response of thin-walled continuous elements

Research Project

Project/Area Number	25420176
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Dynamics/Control
Research Institution	Gunma University
Principal Investigator	Maruyama Shinichi 群馬大学, 大学院理工学府, 准教授 (60344925)
Project Period (FY)	2013-04-01 – 2016-03-31
Project Status	Completed (Fiscal Year 2015)
Budget Amount *help	¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000) Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000) Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000) Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords	機械力学 / 機械力学・制御 / 機械力学・計測制御
Outline of Final Research Achievements	This research deals with identification of distribution of external force utilizing strain response in vibrations of thin walled continuous elements. First, a method is presented to identify an excitation position of concentrated force in a beam with measured signal of strain. Effects of modeling error on the identified results are studied. Next, a method to identify the distribution of excitation force on a beam is presented. Furthermore, an analytical procedure of nonlinear vibrations of a beam, on which arbitrary external force is applied, is introduced. Effects of distribution of external force on the nonlinear response of the beam are discussed in detail.

Report

(4 results)