Mechanical Analysis and Finite Element Simulation of Scissor Transmission Mechanism under Partial Load

Abstract:

Partial load has great impact on both service life and security design of scissor transmission mechanism. A mechanical model has been established, on the assumption that the scissor units are rigid bodies and the connecting rods are elastic bodies, for the research on the scissor transmission mechanism considering partial load. The recursive matrix used to calculate the node force of multi-unit transmission mechanism has been obtained. And based on the recursive matrix, the method has been deduced to calculate the node force of the scissor transmission mechanism in the unbalanced loading condition after the connecting rods were replaced by equivalent models—the springs. The finite element model carried out with SAP84 was established to measure the accuracy of the equations obtained by theory derivation, and the results proved the correctness of the theoretical formula because of the little difference between theoretical results and simulation results. The conclusion obtained could serve as theoretical guidance for mechanical analysis and optimal design on scissor transmission mechanism in the unbalanced loading condition and reference for elastomeric scissor unit research.

• Periodical: Key Engineering Materials (Volume 667)
• Pages: 518-523
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.667.518
• Online since: October 2015
• Authors: Jin Chen*, Xue Yuan, Fan Zhang
• Keywords: Finite Element Simulation, Mechanical Analysis, Partial Load, Scissor Transmission Mechanism, Stiffness

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