自動車ワイパーの非線形定常振動解析（複数の非線形ばねで支持された減衰を有する弾性体の有限要素解析）

概要

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This paper described nonlinear vibration analysis using finite element method for automotive wiper. The characteristics were studied by modeling the arm of wiper with damped elastic body used finite elements, and the blade with nonlinear springs. For the arm, the constraint condition, and the characteristics of the spring and damping at the joint were tuned according to the results of experimental modal analysis. Characteristics of stiffness of blade rubber were identified by experimental measurement. The eigenvalue analysis of the FE model were conducted, and the results were used to calculate nonlinear resonance responses using harmonic balance method. Then the experiment verification was performed for the resulted resonance response and the effectiveness of this analysis method was confirmed.