• CN:11-2187/TH
  • ISSN:0577-6686

›› 2008, Vol. 44 ›› Issue (4): 195-200.

• 论文 • 上一篇    下一篇



  1. 沙洲工学院机电工程系
  • 发布日期:2008-04-15

Gripping Principle of Tension Component under Equi-strength

LI Jiankang   

  1. Department of Mechanical and Electrical Engineering, Shazhou Institute
  • Published:2008-04-15

摘要: 夹持或锚固是机械工程和结构工程中一种对受拉构件进行约束的常见方式,是一种借助摩擦力对受拉构件的位置或运动进行限制、固定的形式。研究夹持段的强度并保证夹持有效,对机构或结构的正常工作是至关重要的。从一般拉伸构件工作的夹持条件出发,依据工作过程中夹持压力、摩擦特性、夹持段的几何尺寸等因素之间约束关系建立夹持段的力学模型。借助模型和摩擦极限状态的平衡原理、材料的等强度原理,导出脆性材料、塑性材料的夹持段的断面几何尺寸、夹持压力、工作轴力之间的微分方程。讨论不同形式的边界条件,给出圆断面与矩形断面受拉构件在不同条件下的夹持压力分布、断面分布以及夹持段长度的计算表达。

关键词: 等强度夹持原理, 拉伸构件, 拉伸夹持

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: Gripping for tension, Gripping principle of equi-strength, Tension component