Application Of Computer Measurement And Control Technology On Locomotive Resistance-load Testing

As wide application of the technology of the computer and the speed-raising strategy of the railway, it is difficult to keep up with the paces of information age for the traditional water-resistance-load test of the diesel locomotive. Aiming at the advantages and disadvantages of the traditional resistance-load test, this text proposes to apply computer technology in resistance-load test bed which can realize automatization and digitization and can save the time of testing and improve working efficiency.Load -testing is a very important link of railway overhauls in railway departments.At present, there are two modes of load test .One is water-resistance load, and the other is non-water-resistance load. For its high cost and difficulty of controlling, the latter is seldom applied. And water-resistance load test is applied widely in railway depots for its continue to change resistance and easiness to operate and meeting the need of testing. This text uses embedded technology of the industry controlling computer to rebuild the traditional test bed. After rebuilding, the test bed can gather and record test data and can monitor the test process automatically which can reduce the working intensity and improve the precision of measuring, and also can improve working efficiency and economic benefits.In chapter 1, it summarizes the present state of load test at home and abroad and analyses the disadvantages of traditional water-resistance load test and put forward the goal and content of rebuild.In chapter 2,it introduces the basic principle of value engineering and the main task and looks the common work procedure of value engineering as the direction to rebuild the water-resistance load test bed.In chapter 3,it summarizes the measuring principles of several parameters while testing and scheme of how to test parameters.In chapter 4,it introduces the design of the rebuild of test bed emphatically, including control system design, circuit design and analysis of the result of the test, etc.At last it gives the summarization and the research work prospect.