【作者】 胡松涛；

【导师】 谢海波；

【作者基本信息】 浙江大学 ， 机械电子工程， 2012， 硕士

【摘要】 电液比例技术已经广泛应用于国民经济的各个行业,比例电磁铁作为电液比例系统中的电-机械转换器件,其特性对电液比例控制元件和系统具有重大的影响。比例电磁铁的性能受很多因素影响,因此在对其性能进行研究时,测试手段往往显得更加重要和有效。本课题是在分析前人研制电磁铁测试系统的基础上,结合传感器技术和控制技术,搭建了一个快速、高效的测试系统,并且能够对动静态测试进行快速切换。在论文中不但对比例电磁铁动静态性能进行了测试,而且对电磁铁进行了建模,对其动态特性进行了仿真,主要内容如下：第一章,概述了电液比例技术的发展过程,比例电磁铁的结构及原理,比例电磁铁测试系统的研究现状,阐述了课题的研究意义和主要研究内容及难点。第二章,分析了比例电磁铁的主要性能曲线及其参数,提出了系统的机械结构总体设计方案和测控原理设计方案。第三章,主要讨论了机械结构各部分功能的实现设计,并且对系统进行了有限元仿真,证明了机械结构设计的合理性。第四章,主要讨论了测控原理各部分的实现设计,主要是高速采集和稳态控制的同步设计和LabVIEW调用WINDOWS的动态链接库(DLL)文件的实现。第五章,主要介绍了测试系统的测试功能,并且利用MATLAB软件对比例电磁铁的动态特性进行了分析。第六章,总结全文的研究工作,并提出下一步的研究改进方向。更多还原

【Abstract】 Electro-hydraulic proportional technology has been widely used in various sectors of national economy. As the electromechanical switching actuator in the electro-hydraulic proportional system, the characteristics of the proportional solenoid have a significant impact on the performance of the proportional components and systems. The performances of the solenoid are affected by many uncertain factors, which makes the test methods more important and effective in the researches on the performance of the solenoid.Based on the previous researches on the performance of the proportional solenoid a proportional solenoid test system with the combination of the sensor and control technology is established in this paper. It’s rapid, convenient and capable of the rapid switch between the static test and dynamic test of the solenoid. Not only the performances of the proportional solenoid have been tested, the solenoid has been modeled and its static and dynamic character has been simulated in this topic. The main contents are as follows:In chapterⅠ, the development of electro-hydraulic proportional technology, the structure and principle of proportional solenoids and researches on the performance of the proportional solenoid have been proposed. The significance of the research and primary contents and difficulties are also discussed.In chapterⅡ, the main curve and parameters of the solenoid are analyzed and the overall design of the mechanical structure and control principles are put forward.In chapterⅢ, the realization of various parts of mechanical construction is proposed and the results of the finite element simulation of the whole system prove the rationality of design.In chapterⅣ, the realization of various parts of the principles of measurement is discussed.The main contents are the design of the synchronization between high-speed interrupt acquisition and static control and the achievement of calling Dynamic link library (DLL) in LabVIEW software. In chapter V, the experimental results the test platform are discussed and the dynamic characteristics are analyzed via the MATLAB software.In chapter VI, the researches in the whole paper are summarized and the future researches are put forward.更多还原