Research On System Detection Of Wheel Tread Irregularities

The problem that how to measure the fault of the tread profile is concerned all along and perpetual studied and improved. That is because the irregularities of tread profile are the key factor of influencing the safety, stabilization and economy of running. The article goes into particulars of on-line measurement equipment of tread irregularities.It makes use of acceleration sensors which capture the collision acceleration between the wheel and rail, and also by the use of electric charge amplifier, we can get the voltage which corresponds to the acceleration, then by the corresponding expressions, we can get the depth value of the tread irregularities, so we can realize the abrasion conditions of the wheel in time.The principle of the project consists of various sensors, electric charge amplifier and data processing equipment. By acceleration sensors, the accleration coverts to electric charge value, then the electric charge amplifier transfers it to voltage to computer.The signal is compensated in frequency area, then compensated of actual effect in timing area, the energy area which is realized by wavelet transformation acts as assistant. At last the depth of the tread irregularities curve come into being on the ground of conversation of energy.The measuring error is less than 0.3mm.The characters of the equipment are higher automation, efficiency, easy operation, credible results, and intuitionistic output and can realize on-line measurement. It gives the condition of the tread irregularities of higher precision and has wide prospect.The background of the project, the inland and overseas technology, the feasibility analysis is firstly introduced in the article. Then the working principle and the characteristic are described, the arithmetic of dealing with data and the generation of final project are particularly depicted. At last the estimation of the project is given.