Sensitivity Analysis of Nonlinear Modification on Linear System and Its Applications
Lin Lizong,Xu Xiaoli
(Mechanical Department Of East China Inst. of Science & Technology Shanghai, 200237)

Abstract: In the paper, a sensitivity-oriented optimization technique for parameters of nonlinear elements in large structures is described, on the base of the theory of nonlinear modification on linear systems. The vibration of an anti-air gun is discussed. The vibrating speed and displacement at the gun-tube head are concerned and a shock absorber is proposed at that position. The parameters of the absorber are optimized. The results of which are proved to be satisfactory.
Keywords: Gun, vibration, simulation, nonlinear vibration, and structural modification.