摘要:随着中国房地产业以及相关新兴产业的迅猛发展，升降平台市场需求不断扩大，中国的升降机市场被世界看好，随着中国升降机产业的不断成熟，对升降机技术要求越来越高，依照传统研发模式，新产品的开发通常需要经历初始设计、样机生产、技术与性能测试、改进设计、设计定型、大批量生产等步骤。这种的研发模式成本高，研发周期较长，样机的性能测试不够全面。因此，设计师需要一种新的方法和途径来解决所面临的问题，虚拟样机技术(Virtual Prototyping)正是在这样的需求下驱动产生的，拥有了虚拟样机技术的强大支持，设计师就可以从容的解决这些问题。
本文基于虚拟样机技术，使用三维设计软件Epigraphic NX4.0对简单机构分别用Step函数、If函数、SHF函数、POLY函数对其进行运动仿真，最终对剪式升降平台进行建模仿真。并赋以函数进行精准控制，从而实现对机械的干涉分析，跟踪零件的运动轨迹，分析机构中零件的速度、加速度、作用力、反作用力和力矩等。运动仿真的结果可以指导修改零件的结构设计或者调整零件的材料，对设计方案进行优化完善。通过多种复杂函数加载运动参数，更加精准的模拟机械实际运动情况。另外分析对比各复杂函数的适用范围与条件，为综合运用供参考，最终实现对剪式升降平台的仿真动画和各种参数的输出。
关键词：升降平台；虚拟样机技术；复杂函数；运动仿真；UX4.0；函数
ABSTRACT:With the rapid development of Chinese real estate and emerging industries, the market demand of the lifting platform continues to expand, China lifts market optimistic about the world, with the lift industry continues to mature, more and more high to lift the technical requirements, in accordance with the traditional R & D mode, the development of new products usually need to go through the initial design, prototype production, technology and performance testing to improve the design, the design finalized, the mass production steps. This mode of R & D costs, longer development cycle, and the performance testing of the prototype is not comprehensive enough. Therefore, designers need a new ways and means to solve the problems faced by virtual prototype technology (Virtual Prototyping) It is in such demand-driven, have strong support of virtual prototyping technology, designers can calm to solve these problems.
3D design software based on virtual prototyping technology, the use of the Epigraphic NX4.0 simple institutions with Step function, the If function, SHF function POLY function, motion simulation, and ultimately the scissor lift platform modeling and simulation. And to give precise control functions, in order to achieve the mechanical interference analysis, tracking the trajectory of the parts, analysis parts speed, acceleration, force, reaction force and torque. Motion simulation results can guide to modify parts of the structure design or adjustment of parts, materials, design, optimize the sound. Motion parameters are loaded through a variety of complex functions, more accurate simulation of mechanical movement. Analysis of the scope and conditions for comparison of complex functions, for reference for the comprehensive use of ultimate realization of the simulation animation and a variety of scissor lift platform the parameters of the output.
Keywords: Lifting platform; virtual prototyping technology; Complex functions; motion simulation; UX4.0: Function
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