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当架空热力管道系统中有滚柱支架时,热胀的管道与支架问的横向和轴向位移的摩擦系数不同,导致摩擦接触面处于正交各向异性摩擦接触状态.本文提出了处理这种摩擦接触情况的基本思想和分析方法,用有限元迭代法分析计算了有滚柱支架的架空热力管道系统的位移和应力.计算结果表明,影响管线变形的主要因素是沿管道横向的摩擦力.设置滚柱支架使管线在支架处的横向位移为滚动,可以减小摩擦对位移的影响.
When there is a roller bracket in the overhead heat pipe system, the coefficients of friction in the transverse and axial displacements between the pipe and the bracket are different, which leads to the frictional contact surface in the orthotropic frictional contact state. Friction and contact with the basic ideas and analysis methods, finite element iteration method was used to calculate the displacement and stress of the overhead heat pipe system with roller brackets. The calculation results show that the main factor affecting the pipeline deformation is the friction along the horizontal pipe. Setting the Roller Bracket to Make the Lateral Displacement of the Pipeline at the Bracket Scroll to Reduce the Effect of Friction on Displacement.