Prediction and Control of Wheel/Rail Noise for Rail Transit;

On the basis of the improved wheel/rail noise prediction model,the wheel/rail noise of china railway is analyzed in this paper.

In the paper,based on related foreign study and experiment results on the mechanism of wheel/rail noise and their technological applications,the mechanism of wheel/rail noise is discussed and analyzed from wheel/rail roughness excitation,wheel vibration,rail vibration,sleeper vibration and noise radiation.

Structure parameter influence of slab track for high speed railway on wheel-rail noise;

Prediction model of wheel-rail noise for rail transit;

In order to alleviate the problem of railroad noise pollution,this paper studies the wheel- rail noise reducing technology by sticking high damping materials on the two sides of rail according to the characteristics of train running noises after speed increase and wheel-rail noise generating mechanism.

This paper begins with the research on the frequency spectrum features of rigid wheels with straight spoke, the metro wheel rail noise is measured on track, a kind of sheared resilient wheels is developed, and the noise features of the wheel are measured in laboratory.

Methods and advances in study of wheel rail noise in Europe railway are introduced and some suggestions for performing study of wheel rail noise in our country are presented in this paper.

Star total coloring of generalized Mycielski s graphs with wheels and paths;

Based on landscape design in the north entrance of Xiangjiang River in Zhunyi City,3 ele- ments,such as image,picture and link in Montage technique are used to conduct a design for a logical syllogism according to the kernel picture"wheel".

Great accomplishments on the wheelset technology have been obtained in the 20th century,especially since 1960s,the application and dissemination of the high and new technology represented by the computer technique has played an important role in the modernization of the wheelset technology.