The vibration characteristics of Chinese and Japanese Tractor on artificial road are researched by theory analysis and experiment test. THS22 tractor as Japanese tractor and Shenniu25 as Chinese tractor are selected as experimental tractor. The middle and low speed are selected as experimental tractor speed. The accelerometer is set under the seat. The tractor vibration characteristics are analyzed with time and frequency series. The 1/3 octave bands and total weighted average are exploited to estimate the ride comfort of the tractor. As Shenniu25 tractor The influence of the engine vibration is analyzed. The linearity between the acceleration range and speed is described with THS22 tractor and the frequency of the dominating vibration is sensitive with human, so the ride comfort is not good and the Japanese tractor is unfit on Chinese country road. As Shenniu25 tractor, The influence of the engine vibration is very high and the dominating vibration is not sensitive with human, the vibration of X and Z orientation is almost the same and very high, in the contrast the vibration of Y orientation is very low. |