基于创新理论的机械产品改进设计

发布时间：2018-07-31 06:47

【摘要】：随着经济技术的发展，企业面临着更为严峻的市场竞争。国内的很多企业缺乏自主创新能力，很多产品基本上是根据经验来确定参数进行设计，或者是模仿测绘国外产品，产品稳定性和可靠性较差，且易产生知识产权纠纷。研究表明，科学发现、科学仪器和科学方法是成功创新的根本途径，而科学方法的核心是创新方法，只有让设计人员掌握了创新方法，才能推动企业创新，实现产业技术转型。因此，本文着力研究基于创新理论的产品设计方法，并尝试把它们应用到工程机械产品改进设计当中。设计作为一项不断发展的社会活动，，具有经验的积累性和实践的创新性。根据不同的设计内容和目的，可遵循一定的设计程序。设计程序与方法是一组完整的概念，在一定的设计程序中使用一定的设计方法才能顺利完成该程序预定的目的。本文阐述了一些通用的产品设计方法，详细介绍了TRIZ创新技法的理论体系，在此基础上提出了适合工程机械产品设计的方法，使两者得到有机的结合。文中把上述过程应用到压路机部件的改进设计过程。首先，应用了技术进化理论对压路机的轴承损坏和激振室漏油问题进行分析和解决，并取得了明显的效果；其次，应用基于矛盾矩阵的Pro/Techniques5.0软件工具给出解决驾驶员作业时不适的措施，提出了改变技术参数的原理，降低了减振器的刚度，改变了驾驶员不适现象；最后对压路机做了简化的三维模型，对刚度和上下车质量比改变前后进行仿真分析，得出刚度取较低下限的可行性。
[Abstract]:With the development of economy and technology, enterprises are facing more severe market competition. Many domestic enterprises lack the ability of independent innovation, many products are basically based on experience to determine the parameters of design, or imitating the mapping of foreign products, product stability and reliability is poor, and prone to intellectual property disputes. The research shows that scientific instruments and scientific methods are the basic ways of successful innovation, and the core of scientific methods is innovation methods. Only when designers master the innovative methods, can they promote enterprise innovation and realize the transformation of industrial technology. Therefore, this paper studies the product design methods based on innovation theory, and tries to apply them to the improved design of construction machinery products. Design as a continuous development of social activities, with the accumulation of experience and practical innovation. According to different design content and purpose, can follow certain design procedure. The design program and method are a set of complete concepts. Only by using a certain design method in a certain design program can the intended purpose of the program be successfully completed. In this paper, some general product design methods are described, and the theoretical system of TRIZ innovative techniques is introduced in detail. On the basis of this, the method suitable for the design of construction machinery products is put forward, so that the two can be combined organically. In this paper, the above process is applied to the improved design process of roller components. Firstly, the technology evolution theory is applied to analyze and solve the problems of bearing damage and vibration chamber leakage of roller, and the obvious results are obtained. The Pro/Techniques5.0 software tool based on contradiction matrix is used to solve the discomfort of driver, and the principle of changing technical parameters is put forward, which reduces the stiffness of shock absorber and changes the phenomenon of driver discomfort. Finally, the simplified three-dimensional model of the roller is made, and the simulation analysis is carried out before and after the change of the stiffness and the mass ratio of loading and unloading, and the feasibility of taking the lower limit of the stiffness is obtained.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH122

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