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悬链线竖向集中力作用下的构形分析和张力计算
Configuration Analysis and Tension Calculation of Catenary under Vertical concentrated force
投稿时间:2019-08-30  修订日期:2019-10-31
DOI:
中文关键词:  竖向集中力  水平张力  构形  悬链线  同步求解  非线性方程组
英文关键词:vertical concentrated force  horizontal tension  configuration  catenary  synchronous solution  non-linear equations
基金项目:国家自然科学基金重点项目(51434002);大洋协会重大专项基金(DY125-14-T-03)资助项目
作者单位E-mail
郭小刚 湘潭大学 teenhero@163.com 
王刚 湘潭大学 754346970@qq.com 
宋晓东 中机中联工程有限公司  
邓旭辉 湘潭大学  
赵珂 湘潭大学  
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中文摘要:
      目前,悬链线在竖向集中力和均布荷载共同作用下的构形分析和受力计算的理论仍不完善。针对这一问题,通过引入悬链线的几何约束方程、力平衡方程和超越方程,建立了竖向集中力与均布荷载共同作用下的非线性方程组。采用牛顿迭代法求解方程组,得到了悬链线的构形和受力情况。为了验证理论计算的正确性,进行了算例和试验验证。结果表明,算例的计算结果与文献的结论保持一致,试验测得的构形和水平张力大小与理论计算的构形和水平张力大小吻合较好。本文的理论计算可以更加简单、精确地计算出悬链线在竖向集中力和均布荷载共同作用下的构形和受力情况,为实际工程提供了重要的理论指导作用。
英文摘要:
      At present,the theory of structural analysis and stress calculation of catenary under vertical concentrated force and uniform load is not perfect.For this problem, by introducing the geometric constraint equation, force balance equation and transcendental equation of catenary, the nonlinear equations of vertical concentrated force and uniform load are established.Newton iterative method is used to solve the equations, and the configuration and stress of catenary are obtained.In order to verify the correctness of the theoretical calculation, The calculation example and test verification are carried out.The results show that the calculated results of the example are consistent with the conclusions of the literature. The measured configuration and horizontal tension are in good agreement with the theoretical calculation.The theoretical calculation in this paper can be simply and accurately to calculate the configuration and stress of catenary under the joint action of vertical concentrated force and uniform load and provide important theoretical guidance for practical engineering.
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