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Screw-driven clamping fixture, it's external or internal force and deformation may be the direct cause of manufacturing precision, is one of absolutely necessary parts for manufacturing process. An effective way of predicting the movement and force of the screw-driven clamping is proposed in this paper based on mathematical methods and numerical simulation. As an example, a kind of screw-driven fixture...
In this paper, the models of the base of a type vertical motor were adopted to MSC. NASTRAN software to analysis modes and transient response, get transient response, natural frequencies and vibration shape based on element finite simulation, and the mechanics capability was proved, these main destroy forms and locations were gained. The effect of the vibration of the motor was also discussed according...
Based on the theory of thin shell, a simplified calculation model is raised to conduct the analysis of the internal force of variable cross-section of shell concrete structure reinforced by ring beams under various loads. The model selects one-sixteenth of a sphere as the computing unit and simplifies the node, transmit only shaft and shear instead of moment. The calculation diagram selects three...
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