基于CFD技术的液压管道过滤系统研究及过滤结构优化设计

发布时间：2018-01-06 23:42

本文关键词：基于CFD技术的液压管道过滤系统研究及过滤结构优化设计　出处：《沈阳理工大学》2012年硕士论文　论文类型：学位论文

【摘要】：管道过滤系统是用来滤除液压管道系统中流体介质中的杂质，保证流体的清洁度，由于该行业的专业性，目前国家在这一领域行业标准还不够完善，在液压管路过滤系统的设计中，只能借用常规产品的设计资料，凭经验进行推测。所以往往容易忽略结构内部的压力损失以及对过滤效率的研究，从而导致设计效率低下，无形中降低了产品的质量。为了适应现代工业输送系统的要求，开发和研究高效、先进的过滤产品势在必行。有限元方法的不断发展，，结合计算流体力学(CFD)方法，通过计算机技术，采用数值模拟技术为过滤系统的设计提供了一种新的方法。根据CFD技术计算得到过滤系统的相关特性，系统内部流体运动的详细参数，表明有限元方法及计算流体动力学方法这一高新科技手段用于液压管路过滤系统设计的可行性。本文利用CFD技术对液压管路过滤系统进行了如下几个方面的研究： 1)结合有限元方法和计算流体动力学理论，利用计算机对过滤系统进行流场的数值模拟，得到系统内部流场的各项详细的流动特性参数，指导产品的结构优化设计。 2)对过滤系统滤芯部件结构参数进行理论分析，在理论基础上，建立优化方案，并总结出经验公式。 3).通过对滤芯部件的出口部位的数值模拟计算，得出优化方案，并建立优化模型。 4).在滤芯结构优化的基础上，对滤芯进行过滤效率的研究，建立使用寿命预测数学模型。 5).在上述研究基础上，对液压管路过滤系统的参数化设计进行可行性分析，并用VC++6.0设计液压管路过滤系统参数化设计软件。
[Abstract]:The pipeline filtration system is used to filter the impurity in the fluid medium in the hydraulic pipeline system to ensure the cleanliness of the fluid. Because of the profession of the industry, the national standard in this field is not perfect at present. In the design of hydraulic pipeline filtration system, we can only use the design data of conventional products and speculate by experience, so it is easy to ignore the pressure loss inside the structure and the study of filtration efficiency. As a result, the design efficiency is low and the quality of the product is reduced intangibly. In order to meet the requirements of modern industrial transportation system, it is imperative to develop and study efficient and advanced filtration products. The continuous development of finite element method, combined with computational fluid dynamics (CFD) method. A new method for the design of filter system is provided by computer technology and numerical simulation technology. According to the CFD technology, the relevant characteristics of the filtration system and the detailed parameters of the fluid movement in the system are obtained. The feasibility of using finite element method and computational fluid dynamics method in the design of hydraulic pipe filtration system is demonstrated. This paper makes use of CFD technology to carry out several aspects of hydraulic pipeline filtration system. Research:. 1) combined with finite element method and computational fluid dynamics theory, the flow field of filtration system is simulated by computer, and the detailed flow characteristic parameters are obtained. Guide product structure optimization design. 2) based on the theoretical analysis of the structural parameters of the filter element of the filtration system, the optimization scheme is established and the empirical formula is summarized. Through the numerical simulation of the outlet part of the filter element, the optimization scheme is obtained and the optimization model is established. Based on the optimization of filter element structure, the filtration efficiency of filter element is studied, and the mathematical model of service life prediction is established. On the basis of the above research, the feasibility of parameterized design of hydraulic pipeline filtration system is analyzed, and the parameterized design software of hydraulic pipeline filtration system is designed with VC 6.0.
【学位授予单位】：沈阳理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH137.8

【参考文献】