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Structural optimization of multibody system components described using level set techniques
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DOI：10.1007/s00158-015-1280-6.png)
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Abstract
En 中文
The structural optimization of the components in multibody systems is performed using a fully coupled optimization method. The design's predicted response is obtained from a flexible multibody system simulation under various service conditions. In this way, the resulting optimization process enhances most existing studies which are limited to weakly coupled (quasi-) static or frequency domain loading conditions. A level set description of the component geometry is used to formulate a generalized shape optimization problem which is solved via efficient gradient-based optimization methods. Gradients of cost and constraint functions are obtained from a sensitivity analysis which is revisited in order to facilitate its implementation and retain its computational efficiency. The optimizations of a slider-crank mechanism and a 2-dof robot are provided to exemplify the procedure.
Keywords:
Dynamic response optimization
Flexible multibody systems
Sensitivity analysis
Level set description
Generalized shape optimization
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