• CN: 11-2187/TH
  • ISSN: 0577-6686

›› 2013, Vol. 49 ›› Issue (9): 151-157.

• Article • Previous Articles     Next Articles

Design of Logarithmic Spiral Surface Wedge Block Backstop and Dynamic Simulation

FU Lihua;LI Haiquan;ZHANG Daixing;SONG Hua;YU Chengzhong;LI Gang   

  1. Schol of Mechanical Engineering and Automation, Liaoning Science and Technology University Anshan Iron & Steel Group No.33 Research Institute of China Electronics Technology Group Corporation
  • Published:2013-05-05

Abstract: A new contact backstop with logarithmic spiral surface wedge block is pointed out. Based on the existing eccentric circle surface wedge block, the logarithmic spiral surface wedge block is designed by the curve fitting method. The simulation model of the backstop is established with the Pro/E software. The three-dimensional model is imported into ANSYS/LS-DYNA software for dynamic simulation analysis to obtain the stress characteristics during the backstop process. By comparing the contact stress of the two wedge block, results show that the new backstop has much smaller stress, smoother process and better performance than the traditional backstop with eccentric circle surface wedge block, which will offer theoretical basis for the production of the new backstop.

Key words: Backstop, Curve fitting, Dynamic simulation, Logarithmic spiral curve

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