尾部振動 的英文怎麼說

中文拼音 [wěibùzhèndòng]
尾部振動 英文
stern vibration
  • 部 : Ⅰ名詞1 （部分; 部位） part; section; division; region 2 （部門; 機關或組織單位的名稱） unit; mini...
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 尾部 : afterbody; empennage; tail assembly; tail; trailer; end portion; trailing end; foot section
  • 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
  1. The submarine noise detected by sonar consists of two parts : propeller - generated hydro - dynamical noise, which can be greatly reduced by improving the submarine rear shape ; radiated noise from the submarine structure excited by the centrifugal forces ( moments ) of rotatory machine, which is more complicated and influenced by many factors

    聲納所探測的潛艇噪聲包括兩部分，一是螺旋槳運轉帶來的水動力噪聲，二是潛艇主機工作時產生的不平衡力和力矩引起潛艇結構振動，帶動流場振動從而輻射噪聲。通過改進潛艇尾部線型設計，已將水動力噪聲降到比較低的程度，而結構噪聲則復雜得多，與許多因素有關。
  2. In light of the limitation of fast fourier transform ( fft ) for the method of traditional spectrum analysis to analyze the unsteady signal, wavelet and wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the good characteristic of simultaneous localization in both the time and the frequency domains based on the field test on the vibration of two - row placed units in lijiaxia hydropower station, in which the signal is decomposed into different frequency band, and then the weak signal is caught and the dominant frequency is picked up for the analysis of the vibration source

    摘要基於李家峽水電站雙排機組振動的現場試驗研究，並且針對傳統頻譜分析方法傅立葉變換（ fft ）對于非平穩信號已力不從心這一缺陷，利用小波分析方法在時域和頻域上同時具有良好的局部化性質，通過對開停機這一典型非平穩過程信號進行小波及小波包分析，將其分解到不同頻帶內，獲取微弱信息和提取優勢頻率，並對其作振源分析，得出開停機初始時刻因水流不穩均出現強烈的振動現象，且低頻段信號能量最大，開停機過程水流脈動壓力和尾水渦帶擺動是引起定子基礎振動的主要原因。
  3. Stay cables of the long - span cable - stayed bridges are susceptible to vibration under wind loading, or wind incorporated rain excitation, or deck motion due to high flexibility, relatively small mass and very low inherent damping, such as vortex shedding, wake galloping, parameter resonance and wind - rain induced vibration. large - amplitude vibration of cables may reduce the life of cables and threaten safe traffic, and has been considered today as one of the most critical problems for this type of bridge

    大跨度斜拉橋拉索具有較小的質量和極低的阻尼，在風、風雨及橋面振動等外部激勵下極易發生振動，如渦激共振、尾流馳振、參數共振和風雨振等，拉索的大幅振動對拉索的使用壽命和橋梁安全運營構成極大威脅，它已成為大跨度斜拉橋急需解決的關鍵問題之一。
  4. Based on the fluid - structure interaction theory, the system can accurately and conveninently predict the behaviors of the aft - part vibration of ships

    該系統基於流固耦合理論，針對艦船尾部結構特徵，可以準確方便地預報出艦船尾部振動特性。
  5. Prediction for dynamic response of aft - part vibration of a ship

    某型船尾部振動響應的預報及試驗驗證
  6. Tail - wagging mode

    尾部彎曲振動形式
  7. The vibration and sound radiation behaviors of the stem of submarine with rudder and vane are studied

    摘要針對帶有舵翼的水下航行器尾部結構模型，研究舵翼對水下航行器尾部的振動及聲輻射的影響。
  8. And explain the correlative parameters and the mechanics of the caudal fin locomotion. the equation of the robotic fish caudal fin locomotion is deduced in the third section

    在第三部分，本文分析了魚類尾鰭推力方程，說明了提高尾鰭擺動的振幅和頻率可以提高尾鰭的前向推力。
  9. This paper describes an accurate and practical hydroelastic analysis software system for calculating the aft - part vibration of ships

    介紹一個實用的艦船尾部振動水彈性分析軟體系統。
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