Gripping Principle of Tension Component

under Equi-strength

LI Jiankang

(Department of Mechanical and Electrical Engineering, Shazhou Institute, Zhangjiagang 215600)

Abstract: Gripping or anchoring is a common constraint way in mechanical engineering and structure engineering, which restrict tension component on a place by means of friction. To study strength of component gripping part is important for structure working under normal states. According to gripping conditions in tension component working, the mechanics model of gripping part is set up which is based on the relations among the gripping pressure and character of friction, as well as geometry and sizes of gripping part under working condition. Based on the model and principles of equilibrium in friction limit state and strength and equi-strength of material the differential equations are derived which can be used for brittle and ductile materials. The different boundary conditions are discussed and solutions under gotten conditions are obtained .

Key words: Tension component Gripping for tension Gripping principle of equi-strength

CLC No: 0346

铁道科技基金资助项目(J20002069). Received 20070426, received in revised form 20071104

References

[1]  JIA Peitai, HAI Yifeng, Song Song. Handbook of normal metal material normally used in China and abroad[M] Nanjing: Jiangsu Science and Technology Press, 1999.

[2]  LI Weixu. Mechanical concise handbook of steel material used in China and abroad[M]. Beijing: China Machine Press, 2006.

[3]  XU Xiaolian, YIN Shaofen. Special steel wires[M]. Beijing: Metallurgical Industry Press, 2005.

[4]  JI Wusheng, CHEN Wei, ZHANG Yingli. Test handbook of normal building material[M]. Beijing: China Architecture and Building Press, 1986.

[5]  LI Manyun, MU Wenheng. Knowldges on thread material produced by rolling machine[M]. Beijing: Metallurgical Industry Press, 2006.

[6]  CAI Jianguo. Design principle of machine holder[M]. Xi’an: Xi’an Jiaotong University Press, 1980.