转向架自动化取屑及清洗降噪问题的研究

发布时间：2018-05-09 03:04

本文选题：永磁发电机 + 磁路设计　；参考：《青岛理工大学》2013年硕士论文

【摘要】：制造业水平一直以来是衡量一个国家工业发展水平的一个重要指标。在当前形势下，各个国家和企业都在不断提高自己的自动化制造水平，以确保在激烈的竞争环境中立于领先地位。本论文主要针对动车转向架构架在制造加工中常见的两个问题进行研究，即自动化加工过程中盲孔取屑机构和横梁清洗过程中降噪问题进行研究。在自动化取屑机构中，设计出一种自动取屑机构实现取屑过程的自动化，，鉴于该装置中大部分的机械构件主要是连接件，论文中仅对这些构件做了简单的说明；而着重对所需的小型电机进行设计。在电机设计中，本论文首先对电机中常用的永磁材料的性能和主要指标进行研究，根据材料的性能综合考虑各种因素选取合适的永磁材料，并采用等效磁路法进行磁路设计以简化计算；其次对永磁发电机建模进行理论分析和数学建模，最终得到发电机的各项参数，为后续建模仿真奠定一定的基础；最后通过目前世界上公认的Ansoft电磁有限元仿真软件进行电磁场仿真，证明其电机设计的合理性。在降噪问题上，论文中首先对噪声产生的机理和造成的危害进行研究。为了实现降低噪声的目的，在对噪声产生的机理、声波理论和各种消声器的特点进行综合比较分析后，然后根据消声器性能和吸声材料的吸声性能选择合适的消音材料和消声器，并总结前人的实验和理论经验，最终设计出能够满足降噪要求的消音器，并通过仿真和实验论证所设计消声器的消音效果可以满足实际降噪的要求。
[Abstract]:The level of manufacturing industry has always been an important indicator to measure the level of industrial development of a country. Under the current situation, all countries and enterprises are constantly improving their automatic manufacturing level to ensure that they are in the leading position in the fierce competitive environment. In this paper, two common problems in manufacturing of bogie frame are studied, that is, the detritus mechanism of blind hole in automatic machining and the noise reduction in the process of beam cleaning. In the automatic chip removal mechanism, a kind of automatic chip removal mechanism is designed to realize the automation of the chip removal process. In view of the fact that most of the mechanical components in the device are mainly connectors, the paper only gives a simple description of these components; Focus on the design of the required small motor. In the design of motor, this paper firstly studies the performance and main indexes of permanent magnet materials commonly used in the motor, and selects suitable permanent magnetic materials according to the properties of the materials. The method of equivalent magnetic circuit is used to design magnetic circuit to simplify the calculation. Secondly, the theoretical analysis and mathematical modeling of permanent magnet generator are carried out. Finally, the parameters of generator are obtained, which lays a foundation for subsequent modeling and simulation. Finally, the Ansoft electromagnetic finite element simulation software is used to simulate the electromagnetic field in the world, and the rationality of the motor design is proved. In the problem of noise reduction, the mechanism and harm of noise are studied in this paper. In order to reduce noise, the mechanism of noise generation, sound wave theory and the characteristics of various mufflers are compared and analyzed. Then according to the performance of the muffler and the sound absorption of the sound absorption material, the appropriate silencer and muffler are selected, and the experimental and theoretical experience of the predecessors is summarized. Finally, the silencer that can meet the requirements of noise reduction is designed. The silencing effect of the designed muffler can meet the requirements of actual noise reduction through simulation and experiment.
【学位授予单位】：青岛理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U270.6;TB535

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