rubbing speed 中文意思是什麼
rubbing speed
解釋
摩擦速度-
In this paper, the rotating machinery at high speed is studied. there are discussed about numerical calculating methods for non - linear dynamical system, the rotor system radial impact and rubbing dynamics behavior analysis having the nonlinear rigidity on the unsteady and non - linear oil film, the rotor system dynamics behavior analysis with bending - torsional - pendular coupling vibrations, application of wavelet, fractal and network in fault diagnosis. the main works in this paper are as follows : ( 1 )
本文以高速旋轉機械為主要研究對象，系統、深入地研究了非線性動力學系統的數值計算方法、具有非線性剛度的轉子系統在非穩態非線性油膜力作用下的徑向碰摩動力學行為、轉子彎扭擺耦合振動的動力學分析、小波和分形理論及人工神經網路在故障診斷中的應用問題。 -
The analytical model indicates that the rubbing temperature of tire surface is affected by some parameters, such as ambient temperature, sliding speed and distance, normal load and thermal - mechanical properties of the counterface materials, as well as geometric shape of a tire footprint
分析了大氣溫度、滑動距離、滑動速度、輪胎承載以及胎面和路面材料的物理性能對接地胎面溫度的影響。 -
Because self - compensation repairing film was produced more and more and was rubbing out more and more by friction, abrasion only occured in the self - compensation repairing film and negative abrasion was produced when the film producing abrasion speed was more than abrasion speed
由於在摩擦過程中自補償膜不斷生成，同時又不斷被磨損，當成膜率大於磨損率后，不僅磨損過程完全在自補償膜內進行，而且還會出現負磨損現象，產生自補償修復效應。 -
The stuffs from the nupper of the machine, falling into the high - speed rotating impeller, strike with other stuffs which more around the impeller because of high - speed centrifugal force. after they strike matually, whirling fluid is produced between the impeller andoutercovering. through repeatedly striking and rubbing, the stuffs are crushed into pieces and straightly come out of the lower. the operating process forms into closed circuit, circulate repeatedly and then attains the fineness of the product
制砂機機制砂生產線打砂機砂石料破碎生產線建築砂生產線制沙機打沙機河南重型機器廠是生產制砂機系列設備的專業廠家， pcl直通沖擊式破碎機制砂機用途廣泛，其性能已達到國際領先水。該沖擊破制砂機是目前最行之有效，實用可靠的碎石機器。 -
Loads for every bearing, rotary speed, bearing saddle vibration, shaft vibration, orbit of shaft center, were measured. severely rubbing fault was diagnosed by comprehensively analyzing these signals. the diagnosis results have a good agreement with situation
測得了各支承負荷特性、軸的轉速、軸承座振動、軸的振動、軸心軌跡等數據信號，綜合分析了信號特徵，判定為嚴重碰摩故障，與停機檢查實際情況相當吻合。 -
It is constructed that radial impact and rubbing dynamics differential equations of the rotor system having the nonlinear rigidity on the unsteady and non - linear oil film. the bifurcation and chaos behavior of impact and rubbing fault rotor system caused by the parameters of nonlinear rigidity, rotor rotating speed, eccentric mass is analyzed, in the numerical value analysis method. the bifurcation diagrams, maximum lyapunov exponent diagrams, poincar maps, phase plane portraits, trajectories of journal center, time - history curve, amplitude spectra diagrams of the rotor motion are used
（ 2 ）建立了具有非線性剛度的轉子系統在非穩態非線性油膜力作用下的徑向碰摩動力學微分方程，並應用含高階余項的非線性動力方程的線性化數值法研究了此類系統響應的復雜動力學行為，利用轉子響應的分岔圖、最大lyapunov指數曲線、 poincar截面映射、時域波形、相軌線、軸心軌跡、幅值譜等圖形分析了系統響應的周期運動、擬周期運動、倍周期分岔、混沌等運動形式的轉化與演變過程，重點研究了非線性剛度、轉子轉速、偏心質量等系統參數對碰摩故障轉子系統的分岔和混沌行為的影響。 -
With the speed increment, not only 1 / 2x and 2 / 3x frequency component appear in low frequency segment, but also 4 / 3x frequency component begin to appear in high frequency segment. the amplitude of fraction frequency is usually larger than that of multiple frequencies. the nonlinear characteristic of torsion for rubbing rotor is similar with that of flexural vibration completely
研究結果證實了扭振特徵和非線性特性用於該類故障診斷的可行性：從發生碰摩起，扭振分頻和倍頻相伴出現，轉速較低時， 1 / 2x成分突出，隨著轉速升高，不但有1 / 3x及2 / 3x分量出現，而且出現了4 / 3x成分，分頻幅值大於工頻及倍頻；彎振和扭振的非線性運動特性完全相似，扭振有抑制轉子系統復雜運動的能力。 -
Unbalance response and threshold speed of touch - rubbing of a rotor subjected to nonlinear magnetic forces
非線性電磁力作用下的轉子不平衡響應和界限碰摩轉速 -
In large rotating machinery using filmatic bearing ( turbogenerator, air compressor, etc. ) there is a potential trouble from impefect installation or running conditions, a metals " contact between rotors and shells. the trouble is usully called rubbing. the advantage of ae technologe in the rubbing diagnosis and early detection is showed. instead of classical ae characteristic parameters ( counts, amplitude, energy, duration and the other ones ) a new feature extraction by frequency analysis of ae envelop signals is discussed. both research of ae process and field experements indicate that periodic components in the envelop spectrum related to rotational speed increase evidently at the beginning of rubbing production, hence are highly sensitive to the rubbing fault diagnosis. according to the new design an acoustic emission equipment for the rubbing diagnosis named buaa ae testing system is developed and described
汽輪發電機、空氣壓縮機等採用油膜支撐的大型轉動機械，由於安裝或運行中的原因，在轉子旋轉過程中，可能和器壁發生輕微的摩擦和碰擊，簡稱碰摩.聲發射技術在碰摩發生特別是故障早期診斷上有優越性.本系統的特點是沒有沿用傳統的計數、幅度、能量和持續時間等聲發射特性參數，而是在聲發射包絡信號的頻率分析中進行特徵提取.聲發射發生的過程分析和現場試驗都表明這種方法對碰摩檢測很敏感，在碰摩發生的起始階段，包絡譜中與轉速同步的周期性分量顯著增加.根據這種新的設計思想自行研製了buaa碰摩聲發射檢測儀並對此作了介紹
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