Studied On Dynamic Balancing Emendation System Based On PCI Bus

In this dissertation, with the point view of the fact in china, a automatic dynamic balancing system based on PCI bus is developed, which is designed for high precision dynamic balancing of electromotor rotor.Chapter 1, after given the important role of the research of dynamic balancing emendation and the review of current status and future development trend of dynamic balancing emendation technology, the research content of this dissertation is advanced. Meanwhile, each chapter of this dissertation is arranged.Chapter 2, the basic theory of dynamic balancing emendation is discussed. Meanwhile, a scheme of two-procedure automatic dynamic balancing system is advanced, and then the structure of this system is introduced.Chapter 3,according to demand of system, the software and hardware scheme of PCI board is advanced, then the key technologies such as signal integrity, fast data transfer are studied.Chapter 4,the key technologies of dynamic balancing measurement and dynamic balancing machining are studied. In the part of key measurement technologies, firstly, the design of force measurement bearing based on rigid bearing is introduced, and the vibration characteristic of mechanism vibration system of force measurement bearing is analyzed, then, some important design parameters are worked out; Secondly, the driving connection and control using SVPWM mode of AC servo system is used to solve the problem of rotate speed fluctuating; Thirdly, a kind of signal tracking adjustment and filtering method is presented, this method enhances the performance of measuring system; Fourthly, An adaptive noise cancellation method, which points to the particular circumstance of dynamic balancing, is developed. This method can be used to abstract the amplitude and phase high precisely in the environment of strong background noise with variable frequency structure; Fifthly, the high precision abstracting method of imbalance quantity and its position is developed.In the part of key machining technologies, a cutting model of electromotor rotor used for dynamic balancing emendation is established, and a calculating method of cutting quantity is developed; According to the basic principle of LC oscillator, the cutter contact sensing system and locomotion strategy are designed to realize cutter location automatically.Chapter 5, the control and harmonization strategy of two-procedure automatic dynamic balancing emendation system is developed, and the working beat of computer is arranged to realize system software.Last chapter, the important results and conclusions of this dissertation have been summarized and the prospect for the application of dynamicbalancing emendation system has been opened up.