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Feature extraction is the focus of the 3D model retrieval research. Recent years, some methods for feature extraction have been proposed. Although, the extraction algorithms are increasingly complex and computational, recall and precision rate is only improved slowly. This paper proposes a novel 3D model feature extraction algorithm based on shape weighted, taking into account the distance between...
A virtual prototype of a certain caterpillar drive system is established based on virtual prototype technology in the article, the dynamic load spectrums in operation on different work sections of drive system gears are obtained through a simulation riding test. Applying finite element technology on three-dimensional contact stress dynamic analysis, the course of contact stress in flank of tooth area...
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