基于能量节约的液压缸产品改进设计与研究

发布时间：2018-04-24 06:25

本文选题：能量节约 + TRIZ理论　；参考：《天津科技大学》2011年硕士论文

【摘要】：能源和环境是21世纪全球备受关注的话题。随着世界人口的增长和生活水平的提高,人们对能源的需求也相应增加。增加的能量消耗加速了环境问题,并刺激了人们对降低成本和环境负担新产品的需求。液压缸是工程机械和现代机械设备必不可少的传动设备,液压缸的泄漏和效率低是造成液压设备环境污染和能耗高的主要原因。现代机械设备的快速发展,迫切需要研究高效节能、安全、寿命长、无泄漏的液压缸。本文深入研究了节能设计的关键技术,提出了基于能量节约的产品设计与改进过程,并应用该过程对液压缸进行了改进,为工程设计人员提供了一种可行的创新设计方法。主要研究内容包括： (1)本文系统综述了能量节约设计的必要性、研究现状以及在研究过程中存在的问题；提出在以节能为目标的产品设计过程中,与其他设计产生冲突时用TRIZ理论解决。简单概括了TRIZ理论、QFD理论以及二者结合的研究现状与研究成果。 (2)建立了基于能量节约的产品设计框架,在整个设计过程中,WBCSD发布的七个环境因素始终作为设计的第一要素。详细研究设计框架中的概念设计过程。 (3)详细研究了AHP计算QFD中顾客需求重要度的方法以及建立HOQ的步骤,并提出用TRIZ理论中的矛盾矩阵解决具有高重要度技术需求之间的设计冲突；提出了能量因子的概念以及识别能量因子的方法、原则等,对产品生命周期各阶段的能量消耗进行了分析。构建多目标决策模型以便于优化能量因子以及其它设计参数。 (4)对工程机械常用液压缸的结构、运动原理等做了简单的研究,对本文提出的基于能量节约的产品设计框架及其关键技术进行了验证,在此基础上从需求转换、能耗计算、功能分析、泄漏量计算以及多目标决策等角度出发对工程机械常用液压缸进行了的改进。
[Abstract]:Energy and environment are the topic of global concern in the 21 st century. With the growth of the world population and the improvement of living standards, the demand for energy has also increased. Increased energy consumption accelerates environmental problems and stimulates demand for new products that reduce costs and environmental burdens. Hydraulic cylinder is an essential transmission equipment for construction machinery and modern mechanical equipment. The leakage and low efficiency of hydraulic cylinder are the main causes of environmental pollution and high energy consumption of hydraulic equipment. With the rapid development of modern mechanical equipment, it is urgent to study hydraulic cylinders with high efficiency and energy saving, safety, long life and no leakage. In this paper, the key technology of energy-saving design is deeply studied, and the process of product design and improvement based on energy saving is put forward, and the hydraulic cylinder is improved by this process, which provides a feasible and innovative design method for engineering designers. The main research contents include: 1) in this paper, the necessity of energy saving design, the present research situation and the existing problems in the research process are systematically summarized, and the TRIZ theory is used to solve the conflict between energy saving and other designs in the process of product design aiming at energy saving. The research status and achievements of TRIZ theory qfd theory and their combination are briefly summarized. A product design framework based on energy saving is established. Seven environmental factors published by WBCSD are always the first factor in the design process. The conceptual design process in the design framework is studied in detail. 3) the method of calculating the importance of customer demand in QFD by AHP and the steps of establishing HOQ are studied in detail, and the design conflict between the technical requirements with high importance is solved by using the contradiction matrix in TRIZ theory. The concept of energy factor and the methods and principles of identifying energy factor are put forward, and the energy consumption in each stage of product life cycle is analyzed. A multi-objective decision model is constructed to optimize the energy factor and other design parameters. In this paper, the structure and motion principle of hydraulic cylinder in common use of construction machinery are studied, and the product design framework based on energy saving and its key technology are verified. On this basis, the demand conversion, energy consumption calculation, etc. From the point of view of function analysis, leakage calculation and multi-objective decision, the common hydraulic cylinder of construction machinery is improved.
【学位授予单位】：天津科技大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH137.51

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