natural frequency 中文意思是什麼
natural frequency
解釋
【物理學】固有頻率。-
Basing the theory of finite elemental modeling and ansys software, this text build the entitative model and elemental model of the main parts and carry the modal analysis. and we get the natural frequency and shaking type of all steps. and then we compare the analysis results with the results of experimental modal analysis, testing the correctness of the elemental model
本文根據有限元建模理論，並利用ansys有限元分析軟體，分別對螺桿泵地面驅動系統的上述主要部件進行實體建模、有限元建模以及模態分析，確定這些部件的各階固有頻率和振型。 -
The swing is a pendulum with a single natural frequency depending on its length.
鞦韆是只有一個固有頻率的擺，此頻率決定於它的長度。 -
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。 -
Tuning out the natural frequency of the turbocharging system
渦輪增壓系統自然頻率解諧 -
First natural frequency control and shape design of mast
桅桿首階固有頻率控制與構形設計 -
Natural frequency of rotor bearing system
轉子支承系統固有頻率 -
Determine natural frequency of the symmetrical section timoshenko deep - beam
深梁結構固有頻率的確定 -
Concrete structure fault diagnosis using natural frequency
利用固有頻率特徵量診斷混凝土結構損傷位置 -
Formula for natural frequency of rectangular plates with varying thickness
變厚度矩形板的固有頻率公式 -
Natural frequency of foundation
動力機器基礎基礎自振頻率 -
Its principle is : a laminated structure ( beam or plate ) with delamination consists of undelaminated region and delaminted region which can be divided to upper and lower parts. when a low - amplitude and high - frequency excitation has the frequency close to some part ' s natural frequency, this part will resonate and certain amount of mechanical energy will convert to heat so that the delaminated region ' s temperature exceeds greatly that of the undelaminated region. therefore the delamination can be located by means of infrared thermograph
其原理是具有脫層的層合材料構件（梁或板）包含脫層區域及未脫層區域，脫層區域分為上下兩部分，若對層合材料構件施加小振幅、高頻率的振動激勵，當激勵頻率恰好接近其中一部分的固有頻率時，該部分就會產生共振響應，部分機械能將轉化為熱能，使脫層區域的溫度遠高於未脫層區域，藉助紅外熱像儀即可顯示出脫層的位置。 -
Utilize bp neural network set up arm shelf structure design parameter shine upon the relation with nonlinearity of natural frequency, namely has set up the structure analysor based on bp network
利用bp神經網路建立起臂架結構設計參數與固有頻率的非線性映射關系，即建立了基於bp網路的結構分析器。 -
Calculating natural frequency of sti ffened plate by finite dynamic element method
用動態有限元法計算加筋板固有頻率 -
By calculating large quantity of examples, this text studies earthquake resistant behavior of tapered portal frame with pined bases and analyzes its natural frequency, natural period of vibration and vibration mode. by comparing interior forces of pillar top, beam end and span midpoint in two conditions that seismic action effect participates combination of forces and not when portal frame is n ' t changed, ensure conditions that combination of seismic action effect has controlling f unction during tapered portal frame design, and tapered portal frame demands anti - earthquake design
本文通過大量算例分析，研究柱腳鉸接楔形變截面門式剛架的抗震性能，並對其自振頻率、振型進行了分析；通過比較地震作用效應參與荷載組合與不參與荷載組合兩種情況下，樑柱截面尺寸不變時，柱上端、梁端、跨中截面處的內力大小，確定在什麼情況下地震作用效應組合起控製作用，變截面門式剛架需要進行抗震設計。 -
Test result is in accord with estimated value for the natural frequency of tank. forced oscillation test results of rolling table show that the theoretical analyses are good
本論文的研究成果和結論對于u型減搖水艙的設計及試驗搖擺臺的模擬具有重要的指導意義。 -
The conclusions obtained as follows : firstly, the structure ' s free frequency is decreased by the reduction of the mechanical property of the material with the increasing temperature ; secondly the thermal stress produced by the temperature gradient may decrease or enlarge the structures natural frequency ; thirdly, the variety of natural frequency of the alloy structures effected by the heat effect apparently higher than that of the composite material structures
最後，採用ansys程序分析了合金材料、復合材料的板、彈體結構的熱振動特性。在不同的熱載條件下，取得以下結論：升溫導致的材料機械性能下降都會降低結構固有頻率，而溫度梯度產生的熱應力可能降低也可能提高結構的固有頻率；金屬材料結構的固有頻率受溫度的影響要比復合材料結構的固有頻率受溫度的影響要明顯。 -
Based on the geophone vibration formula, this paper presents the affective factors to the seismic data from high resolution geophone arrays and its main property specifications, such as natural frequency, damping coefficient, sensitivity, harmonic distortion, and alias
為此，從檢波器的振動方程出發，對高解析度地震檢波器性能指標（如自頻率、阻尼系數、靈敏度、諧波失真、假頻等）以及檢波器組合的連接方式對地震資料品質的影響進行了分析。 -
Compared with non - slung - load flight, additional aerodynamic load, gravity load should be considered in the slung - load system. so the moment to the gravity center, flight mode and the natural frequency will change
直升機吊掛飛行，與直升機非吊掛飛行狀態相比，增加了新的氣動載荷、重力載荷，和因此產生的對直升機重心的力矩，其飛行運動模式、低頻振蕩固有頻率均發生改變。 -
The first natural frequency map in working space was drawn, which can be useful for selecting proper working position to avoid resonance or low - order harmonic oscillation
討論了頻率求解精度、收斂性與單元橫向彈性位移型函數以及單元數量之間的關系。 -
In the modal analysis, the similarity laws has been introduced to reduce the error during the assessment of the prototype building ' s natural frequency under the insufficient balance weight testing. by the author ' s theory, the prototype natural frequency can be the same even the balance weight of model is changeable
在模態分析方面，本文利用相似性原理，解決了模態試驗在配重不足時，求解原型結構自振頻率誤差過大的問題，並且得出了在不同配重條件下，試驗模型與原型結構的頻率可以達到一致的相似準數。
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