飞碟游乐设备驱动轴疲劳寿命分析

发布时间：2019-01-17 18:36

【摘要】：随着社会经济的不断发展,人们在追求物质生活水平提高的同时,也在不断追求精神生活水平,这促使了游乐设施行业的蓬勃发展。目前国内游乐主题公园众多,其中游乐飞碟是最聚人气的娱乐项目之一。驱动轴是游乐飞碟运行中传递扭矩的重要零部件,由于游乐飞碟运行状况比较复杂,有时处于满载,有时处于偏载,并且从最高点俯冲至轨道最低点的速度常超过30km/h,驱动轴不仅承受飞碟自身重量,在运行中还要承受庞大离心力。如果在运行中断裂,后果将不堪设想。因此对游乐飞碟驱动轴的疲劳寿命分析是现代游乐设备设计制造的必要环节之一。为提高整体结构的安全性及驱动轴运行时的可靠性,提出并设计了一种具有驱动减振功能的游乐飞碟结构。其中包含车体框架、电机减振架、旋体架、导向结构和运行轨道。优化后的结构不仅可以满足防脱轨、防倾覆、限位等安全要求,而且在缓冲结构作用下可减小对主受力构件的冲击。并依据GB8408-2008对设计结构进行了运动学理论分析、启动力矩理论分析及驱动轴工况分析。针对运行过程中,存在由于驱动轴疲劳失效而造成设备事故的安全隐患,采用有限元理论并结合NCODE疲劳分析软件,对飞碟游乐设备驱动轴进行了疲劳仿真研究。首先结合设备工况对该游乐设备进行了简化和建模,然后采用ADAMS有限元分析软件进行了动力学分析,提出了其多体系统拓扑构型,得到了驱动轴的载荷时间历程。利用NCODE疲劳分析软件对驱动轴进行了疲劳寿命分析,得到了该驱动轴的疲劳结果云图和各节点的疲劳寿命,找到了驱动轴最易破坏的位置和寿命,提出了提高驱动轴使用寿命的方法。
[Abstract]:With the development of social economy, people are pursuing the improvement of material life level and the spiritual life level, which promotes the vigorous development of amusement facilities industry. At present, there are many amusement theme parks in China, among which flying saucer is one of the most popular entertainment projects. The driving shaft is an important component of torque transfer in flying saucer operation. Due to the complexity of flying saucer operation, it is sometimes in full load, sometimes in partial load, and the speed from the highest point to the lowest point of orbit is often more than 30 km / h. The drive shaft not only bears the weight of the flying saucer itself, but also bears a huge centrifugal force in operation. If it breaks in operation, the consequences will be unthinkable. Therefore, the fatigue life analysis of flying saucer driving shaft is one of the necessary links in the design and manufacture of modern amusement equipment. In order to improve the safety of the whole structure and the reliability of the driving shaft, a flying saucer structure with the function of driving and reducing vibration is proposed and designed. It includes body frame, motor damping frame, rotary frame, guide structure and running track. The optimized structure can not only meet the safety requirements such as anti-derailment, anti-overturning, and location-limiting, but also reduce the impact on the main load-bearing members under the action of the buffer structure. According to GB8408-2008, the kinematics theory, starting moment theory and driving shaft working condition of the design structure are analyzed. In view of the hidden trouble of equipment accident caused by the fatigue failure of driving shaft during operation, the fatigue simulation of driving shaft of flying saucer amusement equipment was carried out by using finite element theory and NCODE software. Firstly, the amusement equipment is simplified and modeled according to the working conditions of the equipment, then the dynamics analysis is carried out by using ADAMS finite element analysis software, and the topological configuration of the multi-body system is proposed, and the load time history of the drive shaft is obtained. The fatigue life of the drive shaft is analyzed by using NCODE software. The fatigue result cloud diagram and fatigue life of each node are obtained, and the position and life of the drive shaft are found. The method of increasing the service life of drive shaft is put forward.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TS952.81

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