大型游乐设施销轴剪切应力计算与校核方法
赵九峰1，杨蕾璟1，马宁2，阳先波2
（1.河南省特种设备安全检测研究院，河南 郑州 450000；2.中国特种设备检测研究院，北京 100029）
摘要：销轴作为游乐设施中关键的零部件，用来承受大型游乐设施因剧烈运动而产生的冲击载荷。为了保证游乐设施可靠的运行，销轴的应力强度计算和校核显得尤为重要。本文根据微元平衡条件、切应力互等原理和三角函数的倍角关系，从第四强度理论又称为畸变能理论，给出了剪切强度的详细推导公式和游乐设施轴安全系数的确定方法，并结合实例计算轴的安全系数。其计算方法可为游乐设施轴的计算分析提供了参考，对提高游乐设施的设计能力和安全性具有十分重要的现实意义。
关键词：游乐设施；平面应力；主应力；切应力互等原理；畸变能密度
中图分类号：TH311.4 文献标志码：A doi：10.3969/j.issn.1006-0316.2020.10.008
文章编号：1006－0316 (2020) 10－0048－05
Power Calculation and Motor Selection of Amusement Drive Mechanism
ZHAO Jiufeng1，YANG Leijing1，MA Ning2，YANG Xianbo2
( 1.Special Equipment Safety Inspection and Research Institute of Henan Province, Zhengzhou 450000, China; 2.China Special Equipment Inspection and Research Institute, Beijing 100029, China )
Abstract：As a key part of amusement facilities, pin shaft is used to bear the impact load caused by the movement of amusement facilities. In order to ensure the reliable operation of amusement facilities, the stress calculation and check of pin shaft are very important. In this paper, based on the micro-element balance condition, shear stress mutual equal theory and the trigonometric function, and from the fourth strength theory, also known as the distortion energy theory, the detailed derivation formula of the shear strength and the method for determining the safety factor of the shaft are given, and the safety factor of the shaft is calculated with an example. The calculation method can provide a reference for the calculation and analysis of the amusement facility shaft, which is of great practical significance for improving the design capability and safety of the amusement facility.
Key words：amusement facility；plane stress；principal stress；shear stress mutual equal theory；distortion energy density
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收稿日期：2020－01－20
作者简介：赵九峰（1981－），男，河南平顶山人，硕士研究生，CAD/CAE工程师、检验师，主要从事游乐设备设计计算、特种设备结构仿真与载荷响应研究工作，E-mail：zjf_2002@163.com。
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