自行车创新设计的仿真研究及其实现

【作者】 杨琦；

【导师】 滕弘飞； 冯林；

【作者基本信息】 大连理工大学 ， 机电控制及自动化， 2000， 硕士

【摘要】 在新产品的开发与研制中，创新的作用举足轻重且极富挑战性。国内外越来越多的研究人士已将目光投向产品创新与技术创新这一领域。本文以自行车创新设计为研究对象，开发了相应的创新设计仿真软件。该软件的研制目的是供大学生学习和使用，培养他们的创新精神和创新设计的能力。本文的研究内容涉及创新思维科学、创新设计理论、自行车设计、计算机仿真及计算机辅助教学等领域。 在阅读和检索国内外大量文献的基础上，本文首先归纳了相关的创新思维和创新设计的理论及方法，分析了现代自行车的主要创新形式，为自行车创新设计奠定了理论基础。 然后，论文以车架造型和传动方案设计为例，介绍了自行车创新设计过程。从人机工程学的角度，研究了自行车车架造型的创新设计，其内容一方面，利用人与自行车系统的五连杆机构数学模型，辅以力学分析的方法进行运动仿真；另一方面，借助有限元分析软件对车架进行应力计算，以验证其设计方案的可行性。 在介绍了自行车的几种新型传动方式，并进行性能对比之后，本文提出应从分析传动机构内在机理及机构间的相关性入手，来研究自行车传动系统的创新方案。 最后，本文利用Authorware多媒体软件对自行车创新设计过程进行系统集成，建立了五个主要的功能模块：创新设计发展史，创新方法知识，传动系统方案设计知识，车架造型设计动画仿真和动态效果演示。并针对后面两个模块，以VC⁺⁺为平台进行了较为深入地开发，建立了友好的人机交互界面，对三维实体模型进行了光照演示与动画处理，编制了一个可供大学生学习和使用的自行车创新设计仿真软件原型。更多还原

【Abstract】 Innovation is considered as one of the most important and challenging process in developing new products. Research on innovation of products and technology has been more and more concerned in many fields home and abroad. In this paper, bicycle innovative design is studied and its simulation software is programmed in order to cultivate the undergraduate students?creative ability and help them to carry on further innovative design. Many fields are involved in this paper, such as innovative thinking science, innovative design method, bicycle design, computer simulation, computer-assisted instruction, etc. At the beginning of this paper, the relative theory of innovative thinking and the theoretical methods of creative design are summarized based on many overseas and domestic literatures. And the main innovative forms of modem bicycle are analyzed. The above introduced lays the theory foundations of bicycle innovative design. And then, bicycle innovative design process is introduced by examples of bicycle frame structure and transmission plan design. According to the principle of bionics and ergonomics, creative exploitation of new bicycle frame is carried out. The proposed human-bicycle modal during normal cycling is established on a five-bar linkage and explicit expressions for the kinematics are derived with mechanical property analysis. On the other hand, the finite element analysis software is used in stress calculation of frame structure to test fasibility of plan design. Further more, new type transmission system of bicycle is refereed, where mechanical performance is compared with each other. The idea is brought forward that research on innovative plan design in bicycle transmission system should begin with the analysis of inherence in transmission-mechanisms and relativity between them. In the end, bicycle innovative design system is integrated by the Authorware multimedia authoring software. Five main modules are established. They are development history of innovative design, knowledge of innovative methods, knowledge of plan design in transmission system, dynamic simulation of bicycle frame structure and animation effect demonstration. The last two are developed in depth with VC~ language. Friend man-machine interactive interface is programmed. Three-dimensional solid modeling with various light effects is completed and its animation display is shown. As a result, the prototype software of bicycle innovation design is worked out which is provided the undergraduate students with study and practice.更多还原