踏面制動 的英文怎麼說
中文拼音 [tàmiànzhìdòng]
踏面制動
英文
tread braking-
We did some analysis about the relativity between the vibration and the noise of the wheel. after the testing of the first line of guangzhou underground, we found that the existing wheel damper has nothing to do with the noise of wheel less than four thousands hz. compared of different contributions of the tread vibration and the web vibration on sound level of railway noise
在實驗過程中，改進了對車輪的激振方式，利用單擺激振提高了激振力的精度;實驗分析了車輪阻尼器的結構、安裝方式及其動力學參數對車輪阻尼器降噪效果的影響;也分析了車輪振動與噪聲的相關性;現場測試廣州地鐵一號線的噪聲特性，確定了車輪阻尼器所要控制的頻率范圍;對比分析不同激振情況下，踏面徑向振動與輻板軸向振動對噪聲聲壓級的貢獻比例。The target will not come true, even with good line or efficient traction, if the problems of brake are act solved well currently, we are usually puzzled by wheel flat, disc crack in brake system, which influence the quality of running badly
制動問題如果沒有解決，即使有了高質量的線路，有了功率很大的牽引動力等，高速或者重載還是不可能實現的。目前我國運行列車制動裝置的破壞形式主要是踏面擦傷和制動盤裂紋，嚴重影響了運行質量。As a part of the civil 863 plans, two multiple - contact models for two kinds of braking system are built in the paper, in which contact fields are described as coons surfaces, initial velocity is programmed in fortran. the thermal - mechanical coupling braking processes are simulated for the first time by msc. marc, the general - used nonlinear fem software. time distributions of the velocity, the stress and the temperature of the components under various initial velocity and brake force are obtained, which offer theoretic gist to study the life of the wheel, the disc and so on
作為國家行業863重大課題《鐵路機車車輛虛擬樣機系統》的一部分，本文在研究接觸問題和熱?機耦合問題數值方法的基礎上，採用國際上通用的非線性有限元分析軟體msc . marc建立了踏面制動和盤形制動主要部件的多體接觸計算模型，其中用解析方法描述，即用nurb曲線、高斯曲面來描述接觸區域，用fortran語言編寫定義初速度的用戶子程序，首次對兩種制動過程熱?機耦合進行了數值模擬，定量給出了主要制動部件在不同初速度、不同制動力下各個時刻的速度、應力和溫度的變化規律，為研究車輪、閘瓦以及制動盤壽命提供了理論依據。Ltb - ii microcomputer pedal force apply the brake manually device, mainly used for various motor vehicle hydraulic brake pedal force and hand - size power detection, automatic storage test results is also equipped with rs232 serial interface to facilitate communication with the computer
Ii型微電腦踏板力手制動儀，主要用於各種機動車液壓制動踏板力及手制動力大小檢測，可自動存儲檢測結果，並配有rs232串列介面，方便與計算機通訊。The main vehicle for various hydraulic brake pedal force size detection, and automatic storage, test results with a simulated output interface to computer networking and the apparatus small size, light weight, low power consumption, carrying convenient, measurement accuracy, applicable to vehicle brake maintenance of the ideal instrument
主要用於各種機動車液壓制動踏板力的大小檢測，並可自動儲存顯示，檢測結果配有模擬量輸出介面，以便和微機聯網，該儀器體積小，重量輕、功耗低、攜帶方便、測量準確、適用於汽車維修制動系統檢測的理想儀器。分享友人