一种游乐设施吊杆的动态受力研究  

A Dynamic Force Study on the Boom of Amusement Facilities

作　　者：冯洪添 Feng Hongtian(Guangdong Jinma Entertainment Corp.,Ltd,Zhongshan Guangdong 528400)

机构地区：[1]广东金马游乐股份有限公司,广东中山528400

出　　处：《机电工程技术》2024年第11期319-323,共5页Mechanical & Electrical Engineering Technology

摘　　要：在进行结构设计时通常会对结构进行模型简化再计算。简化合理则计算结果与实际情况相符。但在某些情况下,简单的简化与实际情况却有明显区别。分析了一个海盗船游乐设施的吊杆实例。当杆摆到最高点接近水平状态时,若按静止梁结构来计算,则其自重产生的弯矩将很大。然而由于其随船体自由摆动,并不能这样来简单计算。直观上,它像是一根自由摆动的受拉刚性杆,并不会承受弯矩。按上述不同的简化模型对吊杆的设计产生很大的影响。通过结合机构的运动特性及结构特点,逐层分析并建立符合其动力学特征的受力模型,并结合整体受力分析及局部结构之间的相互作用和内力传递情况,分析出一种更贴近其真实受力情况的计算方法,从而得出吊杆的实际受力,为吊杆的型材截面、材质等方面的选择提供可靠的依据。从而使结构更安全和更具合理性。When designing a structure,it is common to perform a simplified calculation of the structure.When the simplification is appropriate,the calculation results can be consistent with the actual situation.In some cases,however,there is a clear difference between a simple simplification and a real reality.An example of a boom for a pirate ship ride is analyzed.When the rod swings to the highest point close to the horizontal state,if it is calculated according to the stationary beam structure,the bending moment generated by its deadweight is very large.However,since it swings freely with the hull,it cannot be simply calculated in this way.Intuitively,it looks like a free-swinging,tensile rigid rod that does not withstand bending moments.The simplified models mentioned above have a great influence on the design of the boom.By combining the motion characteristics and structural characteristics of the mechanism,the force model that conforms to its dynamic characteristics is analyzed layer by layer,and combined with the overall force analysis,the interaction between the local structures and the internal force transmission,a calculation method closer to the real force situation is analyzed,so as to obtain the actual force of the boom,which provides a reliable basis for the selection of the profile section and material of the boom.So that the structure is safer and more reasonable.

关 键 词：摆动 吊杆 自重 动态受力 

分 类 号：TH122[机械工程—机械设计及理论]