natural frequency of vibration 中文意思是什麼
natural frequency of vibration
解釋
自振頻率-
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。 -
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。 -
( 2 ) the crack compares with one depth with the first steps and the second steps natural frequency vibration, crack position near crank arm and main shaft transition round natural frequency little place under crankshaft ; with the third steps and the fourth steps natural frequency vibration, the smaller close to the second crank arm of crankshaft and round place natural frequency of the main shaft transition the position is
（ 2 ）裂紋同一深度比以第1階和第2階固有頻率振動，裂紋位置越靠近曲軸中間曲柄臂與主軸過渡圓處固有頻率越小；以第3階和第4階固有頻率振動，位置越靠近曲軸第二個曲柄臂與主軸過渡圓處固有頻率越小。 -
The dynamic response of the experiment model is studied by transfer function response, and the natural frequency and vibration mode of the vibration system are measured, the dynamic characteristic is mastered, which provides the experiment test method of dynamic data for the structure design of reinforced concrete and the shock absorber design of the system, especially provides the design rules to vibration control of the machine equipment which are built in the building structure
用傳遞函數響應方法對實驗模型進行動態響應實驗研究，測得振動系統的固有頻率和振型，掌握振動系統的動態特性，為鋼筋混凝土建築的結構設計和系統減振設計提供動力學的實驗測試方法，尤其給安裝在建築物內機械設備的振動控制提供了設計依據。 -
Finally finding that there are two reasons that cause vibration of pipe and noise. the one is the vibration of pump which transfers to pipe and stimulates the vibration of pipe. the second is the stimulating frequency of pulsating water is coherent with the natural frequency of pipe
最後得出管道的振動主要是由於兩個原因，一是泵的機械振動傳遞給管道，引起管道的振動；二是由於水流的脈動激勵頻率與系統的固有頻率相吻合，引起管道的共振發聲。 -
( 三 ) under the dynamic load of the explosion, the numeric analysis has been done and achieve the rule as follow : ( 1 ) when the frequency of vibration is 0. 3hz, the acceleration of the slopes top gets the maximum ; so 0. 3hz is believed the natural frequency of the slope as a whole ; ( 2 ) the vibration of explosion can been magnified because of the condition of the landform, when the relative altitude is up to 45m, the acceleration of horizon gets the maximum ; when the relative altitude is up to 100m, the absolute value of acceleration and the deformation of horizon is larger than that in the bottom of the slope ; ( 3 ) in the period of forced vibration, at the top of the slope, the acceleration of horizon become larger and larger ; at the middle part of the slope, it becomes smaller ; ( 4 ) when the explosion velocity of is much little, the shallow part destruction is the primary deformation of the slope
（三）採用模態疊加法針對爆破動力作用，進行邊坡的動力響應分析，得出了以下結論： （ 1 ）振動頻率為0 . 3hz時，坡面頂部水平向加速度峰值最大；綜合考慮，可認為該邊坡的自振頻率為0 . 3hz左右； （ 2 ）地形對爆破地振動存在放大作用，研究剖面的坡面，水平向加速度及位移在地形相對高差45米左右最大，而後隨相對高差的增高而減小，相對高差為100米時，水平向位移及加速度絕對值均大於坡腳； （ 3 ）強迫振動段，水平向加速度值隨時間變化的規律為：坡頂節點總的變化趨勢是越來越大，而坡體中部節點的變化趨勢是越來越小； （ 4 ）當爆破振速較小時，變形破壞的形式表現為坡頂表面滑塌型。 -
The natural frequency of transverse vibration in axial load of simply supported beam
軸向載荷作用下簡支梁橫向振動的固有頻率 -
Studies indicate that : ( 1 ) it is the approach of the first natural frequency of the handle ( 43. 9hz ) and the working frequency under the rated rotate speed of the engine, due to the unreasonable mechanism design, that causes the serious vibration on the handle of the gn31 cultivator
研究表明： （ 1 ） gn31耕整機扶手架的振動量過大主要是由於扶手架的1階固有頻率（ 43 . 9hz ）和耕整機發動機的額定轉速下的慣性力1階頻率（ 43 . 3hz ）接近，為扶手架結構設計不合理所致。 -
Effect of driven - mechanism on natural frequency of torsional vibration of motor shaft
被驅動機構對電動機軸扭振固有頻率的影響 -
Each parameter affecting to its natural frequency and vibration characteristic is analyzed ( such as the supporting stiffness coefficient, the supporting distance, the internal pressure and the velocity of fluid in the pipeline )
分析了各參數（支承剛度系數、支承跨距、管內壓力、管內流體速度）對振動特性的影響；對速度波動、壓力波動對固有頻率的影響作了探討。 -
With the natural frequency and vibration shape under the condition of non - revolving, the measuring method of the object rotational rate and the formula were obtained
利用已知物體在非旋轉狀態下的固有頻率和振形，求得以等角速度旋轉物體的轉速量測的方法，並得出計算公式。 -
Following is the author ' s main workings : building the launching dynamics model of the spin tube gun, obtaining the transfer matrix of the whole system and equation of the characteristic, giving the method of solving vibration characteristic, compiling the fortran program, computing the natural frequency and vibration model
推導了高速旋轉和空間大運動的轉管炮各個元件的傳遞矩陣，得到了轉管炮系統總體傳遞矩陣和特徵方程，給出了振動特性的求解方法，編制了求解振動特性的數值計算程序。 -
In this essay, the answer to natural frequency of vibration and periodic time will given in the response spectrum method
而本文是通過反應譜法，求解泵站的自振頻率、周期。 -
Finally, the analysis examples were presented combined with some real data from hydroelectric set, they showed that numerical simulation of fluid - solid coupling for vibration in this paper is more available and the natural frequency of guide vane in water is lower than that of in air
運用ansys有限元軟體計算了水輪機導葉在空氣中的振動特性以及液固耦合振動的頻率和振型，並對二者進行比較，分析了影響振動的因素。通過算例表明，所採用的有限元數值模型合理，計算結果正確。 -
Modal analysis, frequency response analysis, random vibration analysis and vibration fatigue analysis are carried out based on the modified finite element model. the first natural frequency of pcb is 57 hz, and the dynamic response in the first natural frequency is the largest. weak points are also found
為分析該印製電路板可靠性及設計缺陷，需對修改過的有限元模型進行模態分析、頻率響應分析、隨機振動分析及疲勞壽命分析，以全面了解該印製電路板的動態特性（包括:印製電路板的固有頻率、隨機振動響應情況） ，以及存在的薄弱環節。 -
The results indicate that the natural frequency of vibration of multispan stone arch bridge is closely packed and it has adequate safety allowance
研究結果表明，多跨度石拱橋作為一個整體，其自振頻率較為密集，橋梁具有足夠的安全裕量。 -
Equation ( 4 198 ) yields a first approximation for the change in the natural frequency of vibration
方程（ 4 198 ）給出了一級近似下的固有振動頻率的改變量。 -
These phenomena are roots of the unsteady excitation. ansys was used to solve the structure dynamic equations to obtain the natural frequency of vibration and mode shape of the blade
本文應用工程軟體ansys完成了葉片的振型和自振頻率分析，結合數值計算得出的氣動激擾，進行了葉片的共振分析。 -
By analysing some different types of isolating configurations, the relations between the natural frequency of rotational vibration and that of the linear vibration have been found
通過對幾種不同的隔振形式的分析，得到了扭轉振動的固有頻率與線性振動的固有頻率之間的關系。 -
And this paper presents the research on damping of system. it discusses to design damping system, select and fix shock damper and so on. natural frequency of damping system is resolved by theory and experiment method and is twice reduced form 63. 107hz to 35. 3hz. damping system can meet requirement of segregating vibration
同時也深入研究了系統的隔振問題，對隔振系統的設計、隔振器的選型安裝等方面進行了討論，通過理論計算與實驗兩種方法求出了隔振系統的固有頻率，並有效地降低了隔振系統的固有頻率（從63 . 107hz降低到35 . 3hz ） ，使得隔振系統能有效地隔振。
分享友人