The Resarch On The Theory Of Optimal Wheel Design With Acoustic

Urban rail vehicle wheel-rail noise has become one of the main traffic noise which affect the normal work and life of the residents. It is necessary to carry out research for reducing the impact of noise on nearby residents.The development of the low-noise wheel is an effective measure to reduce wheel-rail noise. Compared with resilient wheels and damped wheels, acoustic optimization wheels not only has a good effect of the silencer, but also safe, reliable, and has a simple structure. Therefore, it’s a wise choice to use acoustic optimization wheels in low-speed vehicles such as subway and light rail. Domestic research in this area is still relatively small, as for the product even less. Therefore, the research about the acoustic optimization wheels is very valuable. The main research work are:First, get the data of the wheel by Matlab software, and then establish solid model of the wheel with the three-dimensional modeling software Solidworks, after Hypermesh software meshing, put the finite element model of the wheel into the finite element analysis software ANSYS, then do the mode state analysis and harmonic response analysis, and analyze its vibration characteristics. Finally, put the displacement response results into Sysnoise to calculate the wheel’s sound radiation characteristics.Secondly, research the effect on sound radiation characteristics by the four sections arc of wheel’s web plate, as well as the thickness of the wheel’s hub.Finally, according to the law, design two optimization of the wheel. The results showed that the optimized wheels meet the strength requirements and the vibration and noise has been significantly lower.