rail vibration 中文意思是什麼

rail vibration 解釋
鋼軌振動
  • rail : n 1 （圍欄等的）橫木，橫檔；（釘帽架等用的）橫條，欄桿，扶手；〈pl 〉圍欄。2 軌道；鋼軌；鐵路；〈...
  • vibration : n. 1. 振動，顫動；擺動；【物理學】振動。2. （心的）震顫。3. （思想情緒的）激動。4. 猶豫。adj. -al
  1. The essential cause that induces subway vibration is the inter action between the train ’ s wheels and rail. through the sleeper, ballast bed, roadbed and soil layer, the vibration spread to far place

    地鐵振動產生的根本原因是由於輪軌的相互作用，再通過軌枕、道床、路基和土層依次向遠處傳播。
  2. Mechanical vibration - ground - borne noise and vibration arising from rail systems - general guidance

    機械振動.由鐵路系統產生的地面噪音和振蕩.一般指南
  3. But there has been no track spectrum that can reflect the real condition of chinese rail for a long time. many organizations have put forward some conclusions of track spectrum, but there is no unite conclusion at present in china. power calculation of locomotive and experiment on the rolling and vibration test - bed have to adopt foreign track spectrum

    但長期以來沒有能反映我國實際軌道狀況的軌道譜，雖然國內很多機構都已提出一些軌道譜的結論，但尚沒有統一性的結論提出，機車車輛動力學計算和滾動振動試驗臺試驗均只有採用國外軌道譜。
  4. Abstract : three - dimension wheel - rail contact geometry is taken into account in studying the vibration between bridge and vehicle. the iteration method of wheel - rail creep force is proposed to improve the existed calculating method

    文摘:對車橋耦合振動研究中輪軌關系的線性方法進行了改進，提出考慮三維非線性輪軌接觸幾何，採用迭代法求解法向力和蠕滑系數。
  5. With the speed up of railway transportation, the lightening design of vehicle seems to be more and more important. reducing the weight of vehicle can not only reduce the consumption of the raw materials and the power of traction, and increase the operation speed and improve the starting and braking performance of trains, but also has the advantageous to reduce the wheel / rail interaction forces, vibration and noise, increase the service life of the vehicle and the track, and economize the cost of transportation

    隨著鐵路運輸速度的提高，車輛的輕量化顯得越來越重要，減輕車輛自重，不僅可以減少原材料的消耗，有利於降低牽引功率，提高列車的運行速度，改善列車的啟動和制動性能，而且可以有效的減少輪軌間的動力作用，減少振動和噪音，增加車輛和線路的使用壽命，節約運輸成本。
  6. By reviewing the cases of environment impact value of urban rail transit in china in recent years, and based on the analysis and summary of environment impact value ( eiv ) results and practical effects, some problems in environment impact value ( eiv ) are discussed comprehensively, among which arc the choice of environment protection targets, the accuracy of source strength analogy, forecasting methods of noise and vibration and the principles of control measure

    摘要通過對近年來國內城市軌道交通環境影響評價實例的回顧，在對環境評價結果與實際效果進行分析和總結的基礎上，對環境影響評價中的若干問題進行綜合探討，包括環境保護目標的選擇、源強類比的準確性、噪聲與振動預測方法及採取控制措施的原則等。
  7. From an analysis of the noise resource of rail transit, we know that reducing the wheel / rail noise is the key to reduce the noise and vibration of the rail transit

    摘要通過對軌道交通噪聲源的分析，結合我國現狀，降低輪軌噪聲是軌道交通減振降噪的關鍵。
  8. In order to understand the key parameter, which influence the vibration isolation efficiency of floating slab track and provide theoretical support for simulation, we analyze the vibration isolation principle of floating slab track. coupling dynamics of vehicle - rail - floating slab - foundation system is calculated using the general software - ansys. the dynamic performances of the floating slab and the efficiencies of the vibration isolation are analyzed in detail

    建立了車輛?鋼軌?浮置板?地基二維有限元模型，並採用有限元計算軟體ansys ，對整個耦合系統進行了不同工況下的動力學計算模擬，詳細分析了浮置板式軌道結構的動力學性能和浮置板式軌道結構的隔振效果。
  9. This thesis describes some means and measures of controlling vibration and noise of the urban rail transit in the world. emphasis is laid on floating slab track which is a mass - spring vibration isolation system and the best vibration - decreasing measure in rail transit system

    本文敘述了國內外用於控制城市軌道交通振動和噪聲的一些方法和措施，重點討論了浮置板式軌道結構，它是一種質量?彈簧隔振系統，是目前軌道交通中減振效果最好的措施。
  10. To reduce noise, vibration and wheel / rail force, and improve ride comfort and fatigue life of wheel / rail, the resilient wheelset becomes the inevitable outcome of urban public traffic

    為了降低噪聲、振動、提高乘坐舒適性、降低輪軌作用力及提高輪軌疲勞壽命，彈性輪對車輛的誕生就成為城市公共交通發展的必然產物。
  11. Development of vibration - reducing fishplate technique used in rail joint and its use

    鋼軌接頭減振夾板技術的發展及應用
  12. The key points of this paper can be concluding as follows : 1. the regulations of vibration attenuation of a subway are concluded by analyzing the situ data. in the zone near rail, the high - frequency vibration is stronger than other weight, and in the zone far away from railway, the results is opposite

    主要研究內容和結果如下: 1 .對某地鐵線路環境振動實測數據進行了分析，得到了振動波在土中的傳播規律:地鐵運營誘發振動傳播過程中，近軌區域以高頻振動為主，遠軌區域以低頻振動為主。
  13. S1 : reduction of vibration and noise in metro rail construction

    議題s1 ：捷運系統車軌減振制噪措施之探討
  14. Then the vibration equations in the wheel / rail system dynamics are constituted again and the rigidity matrix, the damping matrix and the load matrix can be formed by different computer processor for the sake of increasing parallel computation efficiency

    隨后在公式級對輪軌系統動力學振動方程組的組建進行了優化，將組建剛度矩陣、阻尼矩陣和荷載列陣模塊化。
  15. Furthermore, investigation of the source of noise and vibration is also an important issue. these problems can be solved in a direct and economical way with the correct approach to controlling their sources. this can be applied, for example, to techniques of train and rail construction, as well as wheel track mutual resistance

    所以，本次捷運研討會特別訂定減振制噪之專題討論，邀請國內外噪音與振動之專家學者參與研討改善建議，亦邀集其他以輪軌系統建設之國家與城市共同分享心得，並期望各項先進科技與發展趨勢能納入本局未來捷運工程之努力方向。
  16. The characteristics of different parallel algorithms are compared in accordance with the specialty of coefficient matrix of vibration equations of wheel / rail system. then, four parallel algorithms are used to solve the linear equations, such as gaussian elimination, lu decomposition, ldr decomposition and wz decomposition. with the method of cyclic distribution, all rows of the coefficient matrix is allotted into different processes, then eliminated and decomposed by relevant processors

    針對輪軌系統振動方程組系數矩陣的特點，分析了現有各種求解線性方程組并行演算法的優缺點，選擇高斯消去法、 lu分解、 ldr分解和wz分解法作比較，採用循環帶狀劃分的方法將系數矩陣的各行分配到各進程，由各個處理器完成所分配矩陣行的消元和分解。
  17. Noise radiated by the rail vibration is considered to be the main portion of wheel / rail noise in the frequencies blew 3000hz

    研究表明， 3000hz以下的輪軌噪聲中由鋼軌振動產生的輻射噪聲占輪軌噪聲的70 %以上。
  18. Testing the vibration acceleration signal of rail top ( lateral and vertical ), rail middle ( lateral ), rail bed side ( vertical ) and rail bed middle ( vertical ) with dasp vibration testing system, calculation of signals obtains the power spectral density and frequency response curves of different position

    測試橫向和垂向激振力下鋼軌不同部位的振動信號，進行頻譜分析，得出不同部位的頻率響應曲線。通過對頻響曲線的分析，得出不同方向激振力下鋼軌振動能量集中的頻率，確定不同方向激振力下鋼軌的主要振動部位和振動形式。
  19. According the principle of the statistical energy analysis method, define subsystem the whole system into four subsystem : subsystem of rail ' s vertical vibration, subsystem of wheel ' s vertical vibration, subsystem of wheel ' s lateral vibration and subsystem of acoustic space. then define the power flow equation between the subsystems

    首先根據統計能量分析方法中子系統劃分的原則，將整個結構系統劃分為：鋼軌的垂向振動子系統、車輪的徑向振動子系統、車輪的軸向振動子系統及聲空間子系統共四個子系統；並且建立了子系統間功率流平衡方程。
  20. Actual measurement indicates that the displacement and acceleration of rail vibration both have random property, the displacement spectrum mostly has obvious low frequency contets which occupy dominant peak value range

    實測表明，軌道振動的位移和加速度都具有隨機特性，位移頻譜組成以低階頻率為主，且有明顯占優勢的峰值區域。
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