游乐设备挑臂梁设计及其结构优化与仿真分析
发布时间：2019-06-13 16:23
【摘要】：随着计算机辅助设计技术的日益成熟,工程师越来越青睐使用其作为辅助手段对产品进行设计分析。它是通过人机配合的方式利用计算机软件作为辅助工具进行设计的一种现代化设计方法,其优点在于可以缩短产品设计生产周期,提高产品研发效率,节约材料,降低劳动及生产成本。尤其是参数化设计、有限元分析、刚体动力学分析、虚拟样机技术与优化设计等现代设计方法被广泛应用于机械、航空等各领域。现代游乐设备在满足设计美观的同时,也在朝着惊险刺激的方向发展,且运动形式复杂,安全性能要求较高。而在设计初始阶段,由于设备运动及载荷形式复杂,动力学参数不完整,仅依据静力学分析数据对其进行设计是不科学的,必须结合动力学分析获取的动力学参数对其进行设计分析,以获得最佳设计参数。本文以"自控飞机"游乐设备挑臂梁作为研究对象,利用SolidWorks软件,根据设计要求,以国家标准及规范为依据,综合应用机械现代CAD技术,完成游乐设备挑臂梁的总体设计。主要研究内容如下:(1)在初始设计参数的基础上,结合设计标准及安全要求,采用参数化设计方法建立该游乐设备的虚拟样机模型,并通过SolidWorks-Motion的刚体动力学分析功能,获得游乐设备在三种特殊工况下的零件间关键连接部位的时间-力的变化曲线,找出最危险工况及承受最大载荷的部位。(2)参照刚体动力学分析结果,得到挑臂梁关键部位承受的最大载荷,对挑臂梁进行结构设计,并利用SolidWorks-Simulation对挑臂梁进行静力学分析,得到挑臂梁的应力、位移分布情况及安全系数。(3)以静力学分析数据为参考依据,通过对游乐设备挑臂梁进行优化设计,在符合设计标准并保证安全的要求下,得到了挑臂梁的最佳设计参数。(4)将设计好的挑臂梁与其他零部件重新进行装配后再次放回虚拟环境进行分析、对比和验证,重新确定挑臂梁关键部位的时间-力的变化曲线。本文综合采用参数化设计、虚拟样机技术、有限元分析、动力学仿真等方法通过Simulation对挑臂梁进行了设计、优化,在保证机械性能及安全性能的前提下,得到了最佳的结构参数,证明该方法符合机械设计的一般规则及其可行性,探索了机械设计的CAD技术,为相似的游乐设备的设计生产提供数据参考和理论支持,并为相关产品的安全评估提供了一种新的思路和方法。
[Abstract]:As the computer-aided design technology is becoming more and more mature, the engineers are more and more interested in using it as an auxiliary tool to design and analyze the products. The method has the advantages that the product design production cycle can be shortened, the product development efficiency is improved, the material is saved, the labor and the production cost are reduced. In particular, the modern design methods such as parametric design, finite element analysis, rigid body dynamics analysis, virtual prototype technology and optimization design are widely used in various fields such as machinery, aviation and the like. The modern amusement equipment, while meeting the beauty of the design, also develops in the direction of the thrilling direction, and the motion form is complex and the safety performance requirement is high. In the initial stage of the design, because of the complexity of the equipment movement and the load form, the dynamic parameters are not complete, the design is not scientific according to the static analysis data, and the dynamic parameters obtained by the dynamic analysis must be designed and analyzed to obtain the best design parameters. Based on the design requirement and the national standard and the standard, the overall design of the arm beam of the amusement equipment is completed by using the software of SolidWorks, based on the national standard and the standard. The main research contents are as follows: (1) Based on the initial design parameters, the virtual prototype model of the amusement equipment is established by using the parametric design method in combination with the design standard and the safety requirements, and the dynamic analysis function of the rigid body through the SolidWorks-Motion is adopted. The time-force variation curve of the key connecting part between the parts under three special working conditions is obtained, and the most dangerous working condition and the part bearing the maximum load are found out. (2) With reference to the dynamic analysis of the rigid body, the maximum load of the key part of the cantilever beam is obtained, the structure design of the cantilever beam is carried out, and the static analysis of the cantilever beam is carried out by using the SolidWorks-Simulation to obtain the stress, the displacement distribution and the safety factor of the cantilever beam. (3) Based on the static analysis data, the optimum design parameters of the cantilever beam are obtained by the optimization design of the arm beam of the amusement equipment. (4) The designed cantilever beam and other parts are re-assembled and then put back to the virtual environment for analysis, comparison and verification, and the time-force variation curve of the key part of the cantilever beam is re-determined. In this paper, parametric design, virtual prototype technology, finite element analysis, dynamic simulation and other methods are adopted to design and optimize the cantilever beam, and the optimal structural parameters are obtained on the premise of ensuring the mechanical properties and the safety performance. It is proved that the method is in accordance with the general rules and the feasibility of the mechanical design, and the CAD technology of mechanical design is explored, which provides data reference and theoretical support for the design and production of the similar amusement equipment, and provides a new thinking and method for the safety evaluation of the related products.
【学位授予单位】：沈阳农业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TS952.8
，
本文编号：2498641
[Abstract]:As the computer-aided design technology is becoming more and more mature, the engineers are more and more interested in using it as an auxiliary tool to design and analyze the products. The method has the advantages that the product design production cycle can be shortened, the product development efficiency is improved, the material is saved, the labor and the production cost are reduced. In particular, the modern design methods such as parametric design, finite element analysis, rigid body dynamics analysis, virtual prototype technology and optimization design are widely used in various fields such as machinery, aviation and the like. The modern amusement equipment, while meeting the beauty of the design, also develops in the direction of the thrilling direction, and the motion form is complex and the safety performance requirement is high. In the initial stage of the design, because of the complexity of the equipment movement and the load form, the dynamic parameters are not complete, the design is not scientific according to the static analysis data, and the dynamic parameters obtained by the dynamic analysis must be designed and analyzed to obtain the best design parameters. Based on the design requirement and the national standard and the standard, the overall design of the arm beam of the amusement equipment is completed by using the software of SolidWorks, based on the national standard and the standard. The main research contents are as follows: (1) Based on the initial design parameters, the virtual prototype model of the amusement equipment is established by using the parametric design method in combination with the design standard and the safety requirements, and the dynamic analysis function of the rigid body through the SolidWorks-Motion is adopted. The time-force variation curve of the key connecting part between the parts under three special working conditions is obtained, and the most dangerous working condition and the part bearing the maximum load are found out. (2) With reference to the dynamic analysis of the rigid body, the maximum load of the key part of the cantilever beam is obtained, the structure design of the cantilever beam is carried out, and the static analysis of the cantilever beam is carried out by using the SolidWorks-Simulation to obtain the stress, the displacement distribution and the safety factor of the cantilever beam. (3) Based on the static analysis data, the optimum design parameters of the cantilever beam are obtained by the optimization design of the arm beam of the amusement equipment. (4) The designed cantilever beam and other parts are re-assembled and then put back to the virtual environment for analysis, comparison and verification, and the time-force variation curve of the key part of the cantilever beam is re-determined. In this paper, parametric design, virtual prototype technology, finite element analysis, dynamic simulation and other methods are adopted to design and optimize the cantilever beam, and the optimal structural parameters are obtained on the premise of ensuring the mechanical properties and the safety performance. It is proved that the method is in accordance with the general rules and the feasibility of the mechanical design, and the CAD technology of mechanical design is explored, which provides data reference and theoretical support for the design and production of the similar amusement equipment, and provides a new thinking and method for the safety evaluation of the related products.
【学位授予单位】：沈阳农业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TS952.8
，
本文编号：2498641
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