特性行列同定法を用いた剛体特性の同定

概要

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Parameters such as the principal moment of inertia, principal axis of inertia, and location of center of gravity are necessary for simulation of the dynamic properties for the design of a mechanical system. Usually some of these rigid body properties are identified by the pendulum method, which is an experimental procedure to obtain these from the period of the suspended specimen using the principle of a pendulum. However, as the specimen becomes more complex in shape or heavier, the resulting parameters are identified with poorer accuracy, because the accuracy of location of the center of gravity decreases. Therefore, the authors examine an approach for experimental identification of the characteristic matrices, i. e. , the mass, the damping and the stiffness matrices, using the modal parameters obtained by modal testing applied to obtain the automotive subsystem's rigid body properties. From these results, it is shown that this approach can be used for obtaining the rigid body properties of mechanical systems.
社団法人日本機械学会の論文
1995-09-25