車輪多邊形對(duì)地鐵車輛動(dòng)力學(xué)性能的影響
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摘 要:基于諧波函數(shù)方法來描述車輪多邊形,建立地鐵車輛動(dòng)力學(xué)仿真模型;分析多邊形幅值、階次對(duì)不同速度等級(jí)下車輛的動(dòng)力學(xué)性能影響;結(jié)合動(dòng)力學(xué)指標(biāo)著重探討車輪出現(xiàn)跳軌之后的動(dòng)力學(xué)表現(xiàn)。
關(guān)鍵詞:車輛系統(tǒng)動(dòng)力學(xué) 車輪多邊形 諧波函數(shù)方法
Abstract:The wheel polygon is described based on the harmonic function method, and the dynamic simulation model of the subway vehicle is established; the influence of the polygon amplitude and order on the dynamic performance of the vehicle at different speed levels is analyzed; combined with the dynamic index, dynamic performance is emphatically discussed after wheel jumps.
Key words:vehicle system dynamics, wheel polygon, harmonic function method
隨著列車速度的增加,車輪與軌道之間的沖擊振動(dòng)變得越來越強(qiáng),車輪磨耗速度迅速加劇,問題也變得更加復(fù)雜。(剩余6116字)