振動率 的英文怎麼說
中文拼音 [zhèndònglǜ]
振動率
英文
flutter rate-
The frequency and amplitude of vibration are monitored.
振動的頻率與振幅受到監控。2. to the circular plate working in axial symmetry vibration at resonant frequency, the equivalent mass in analytical form is derived, that ' s is, and further, the equivalent compliance is obtained using the formula c = 1l 2 m
對于工作在諧振頻率下做軸對稱運動的階梯圓板，採用解析法求得它的等效質量，並由c = 1 / ~ 2m求得等效彈性系數。Strong vibration will affect the underway rate and battle effectiveness of naval vessels
振動過大，影響艦艇的在航率和戰鬥力，減振降噪是現代艦艇所必須的。It can create micro magnetic field. it combine computer proceeding frequency vibration massage and low frequency bioelectricity impulse treatment. easy to use. instruction manual included
4 .生物電脈沖模式和電腦頻率振動狀態的按摩時間分別設有定時控制鍵3分鐘5分鐘15分鐘。This article takes the lagrange equation as the principle, establishes mathematics modeling to the inertia brake vibration when it brakes, then simulates it with matlab. this paper educed the relation equations between, which are the inertia brake ' s friction coefficient of the brake ring and the friction disk, the mean radius, the braking force, rotation inertia of the driving top and the spline shaft, spiral climbing angle of the brake ' s concave - convex helicoid, the mean effort radius of the concave - convex helicoid, elasticity coefficient of the spring, quality of the driving top and the spline shaft, rotations inertia of the brake ' s rotation part besides the driving top and the spline shaft, suppresses sleeve. provides the theory basis for the inertia brake structure optimization
本文以拉格朗日方程為理論基礎，對慣性制動器在制動時的振動進行數學建模，然後用matlab對其進行模擬，得出了慣性制動器在制動時振動角頻率分別與制動環和摩擦片之間的摩擦系數、制動力的平均半徑、主動頂和花鍵軸的轉動慣量、慣性制動器的凹凸螺旋面的螺旋升角、凹凸螺旋面平均作用力的半徑、彈簧的彈性系數、主動頂和花鍵軸的質量、慣性制動器除主動頂和花鍵軸外其他部分的轉動慣量和、頂壓套的質量等慣性制動器各零部件的物理參數之間的關系，為慣性制動器的結構優化提供了理論依據。We acquired the system ' s dynamic response when the satellite attitude was adjusted and the mode of the antenna. then modal analysis and dynamic analysis have been done to the satellite - antenna system by using the finite element analysis ( fea ) software of ansys. through the analysis we got the system ' s connatural characteristic, the amplitude - frequency characteristic of harmonic response, the power spectrum density of random vibration response, the maximal amplitude and resuming time of impact response
其次藉助ansys有限元分析軟體，對系統進行了模態分析和動力學響應分析，獲得了不同天線結構參數下的衛星?天線系統的固有特性，簡諧響應的幅頻特性，隨機振動響應的功率譜密度，以及沖擊響應的最大幅值和恢復時間等。How many people can really attain such a level ? this disharmonious atmosphere is discernible even to the average person who does not practice spiritually, with the exception of a few very ignorant people and those who are as insensitive as timber. the more advanced one is in spiritual practice, the more sensitive one becomes, but when he eventually attains the highest level, every place will be the same to him
在這個地球上，並非每個地方的振動頻率都是一樣的，因為地球上有各式各類的金屬礦，它們分佈的多寡並不相同，所以不修行的人，常會有很多住得不安穩的地方，但是對一位真正有修行的人而言，每個地方都是凈土，每個地方都是聖地，這種話說起來容易，做起來很難，有幾個人能真正達到這種境界？In the next place, by studying the change of the resonant frequency of the whole system, this paper designs the circuit to track the resonant frequency of the system by cd4046 mainly. at the same time, in order to improve the efficiency and get better dynamic capability of the converter, we choose pll and fuzzy control after comparing the pll circuit, fuzzy circuit and pll ? fuzzy control circuit. in the end, this paper brings forward the control blue print to realize the drive control circuit of the high frequency converter, using the dsp chip as the key part to realize four routes of pwm drive pulses with dead band of the control system
其次，通過對整個系統諧振頻率變化的分析和研究，設計了以鎖相環cd4046為核心的鎖相環控制電路，同時，在綜合比較鎖相環控制、模糊控制以及模糊控制和鎖相環復合控制三種控制演算法的基礎上，進行了系統模擬，得出採用復合控制可使跟蹤電路既具有鎖相環路較好的穩態性能，又擁有模糊控制較好的動態性能，系統魯棒性能好，同時也提高了逆變器的效率。Electrodynamic shakers are used in most cases because they can operate over a broad frequency range with accurately controlled waveform.
極大多數的情況下應用電動振動臺，因為它能在一定廣的頻率范圍內工作並且能準確地控制波形。In this article based on vibration theory of the flexural plate, the frequency equation, the equivalent mass and radiation impedance are derived and further, design theory is introduced
本文從薄圓板彎曲振動理論出發，推導了這種階梯圓盤的頻率方程、等效質量、等效彈性和輻射阻抗，並進而提出了這種階梯圓盤的一般設計方法。Assuming the blades conduct a planar simple harmonic motion, the flows in vibrating cascades in the case of different oscillating amplitudes, different reduced frequencies and different torsional centers are computed respectively for two blade profiles. according to comparing flow calculations at different oscillation modes, the influence of the oscillation parameters " selection on aeroelastic performances of cascades is analyzed
假定葉片做平面簡諧運動，針對兩種葉型分別計算了不同振動幅度、摺合頻率及扭心位置時的振動葉柵流場，根據各種振型下流場計算結果的比較，分析了振動參數選取對葉柵氣動彈性性能的影響。Mode is structure ’ s inherence characteristics, each mode has specifically resonant frequencies, damping values, mode shapes, mode stiffness and mode mass
模態是結構的固有振動特性，每一階模態都具有特定的固有頻率、阻尼比、振型、模態剛度和模態質量。Intermodulation suppression for fh ( frequency hopping ) receiver is designed by selecting the intermediate frequencies and changing group of filters, local oscillation ( lo ) frequency, bandwidth of lo frequency under the condition that receiver configuration, sensitivity, dynamic range, instantaneous bandwidth and precision of frequency measurement are fixed
摘要針對跳頻接收機的體制和靈敏度、動態范圍、瞬時工作帶寬、測頻精度等設計參數，通過改變預選器組成、本振頻率和本振帶寬，分析接收通道的中頻選取原則，以實現跳頻接收機的互調抑制設計。At low frequencies, such as 10 per sec., pulsation is sensed rather than vibration.
在低頻率（譬如每秒十次）時，所感覺到的是脈沖而非振動。It shows that the modal shape and mode frequency are highly coupled with the viv response of a marine riser with low mass ratio
該模型的計算結果表明，立管的模態振型、模態頻率與渦激振動響應高度耦合，並且對于低質量比的情況尤為明顯。Equation(4－198)yields a first approximation for the change in the natural frequency of vibration.
方程（4198）給出了一級近似下的固有振動頻率的改變量。Natural frequency of foundation
動力機器基礎基礎自振頻率The test result also displays that sometimes the normal vibration associated with squeal firstly occurs prior to the tangential vibration. the tangential vibration does not occur until the normal vibration gets stronger
試驗發現，有時發射摩擦噪聲的振動首先在法向出現，當這個法向振動比較強時，相同或相近頻率的切向振動才發生。Abstract : a conclusion has been proved indelail that only if the na tural frequency k of a symmetric structure is nota duplicate root, the vibra tion mode of the strusture must be symmetrical orantisymmetrical. this conclusio n is advantageous to simplify the structural dynamicanalysis and pratically usef ul
文摘:給出了有關對稱結構體系的動力特性的一個結論：對稱的結構振動體系，對應于任一非重根的自振頻率，其主振型必定是對稱的或反對稱的.並給出了詳細的證明.應用這個結論，有利於對稱結構動力分析的簡化，具有實用價值Lower pitch indicates a note of lower frequency, following the conventional description of notes with a smaller number of vibrations per second as low, and with a greater number as high
高音即為低振動率的音，根據通用描述，每秒振動次數較少為低，每秒振動的次數多為高。分享友人