AUTOMOTIVE BODY VIBRATION PERFORMANCE OPTIMIZATION ANALYSIS METHOD AND DEVICE

摘要

An analysis method for optimizing vibration performance of an automotive body includes: a vibration analysis step S1 of performing vibration analysis and acquiring a maximum displacement of a part of the automotive body; a maximum displacement load acquisition step S3 of acquiring a load required for applying the same displacement as the maximum displacement; a sensitivity analysis step S5 of identifying a part or member being a optimization target by applying the acquired load; a design space setting step S7 of setting a design space for the identified part or member; an optimization block model generation step S9 of generating an optimization block model in the set design space; a combining processing step S11 of combining the optimization block model to the automotive body, and generating an optimization analysis model; and an optimization analysis step S13 of performing optimization analysis in consideration of an inertial force due to vibration by applying the load acquired in the maximum displacement load acquisition step S3 as a load condition, and acquiring an optimal shape of the optimization block model.