forced vibration 中文意思是什麼
forced vibration
解釋
強迫振動；受迫振動-
The plunger is forced to undergo a simple harmonic vibration parallel to the direction of the tube.
活塞在平行於長管的方向被迫作合諧擺動。 -
This paper presents the basic construction and movement rules of the coordinator gyrorotor with reticle of archimedes spiral reticule pattern, also, it explains the principles and methods of dynamical balance to damp the vibration and forced nutation
闡述了具有阿基米德螺旋線圖案的位標器的基本原理及其運動規律，並說明這種陀螺轉子的振動與繞動的平衡原理與方法。 -
Forced vibration of symmetric cross - ply laminates on elastic foundations
彈性地基上對稱正交鋪設層合板的受迫振動 -
Three dimensional elasticity analysis of forced vibration of simple supported orthotropic rectangular plate
正交各向異性矩形板受迫振動的三維分析 -
Simulations for identification of flutter derivatives of bridge section using the coupled - forced - vibration method
橋梁顫振導數的耦合強迫振動模擬識別 -
The result of the experiment shows that the proposed forced vibration method device has the quality of stability and repetitiveness of the data, the wide range of the testable reduced velocity, the exactness of coupled and direct flutter derivatives. and it does not need to employ any complicated identification system to check it further
結果顯示：本文提出的強迫振動法裝置具有試驗數據穩定、數據重復性好、可測量的折減風速范圍寬、交叉項導數與對角項導數具有同等精度和不需要復雜的系統識別過程等一系列優點。 -
As to the current problems existing in the identification for these flutter derivatives, the dissertation tries to trace the development in the identification for the past unsteady aerodynamic forces of long - span bridges. it also investigates the method for flutter and buffeting analysis and the flutter derivatives. based on the present methods used in obtaining the unsteady aerodynamic forces and flutter derivatives, and co - funded by a natural scientific fund from the nation and a key project fund from the railway ministry, the current research has attempted to develop a device which can be employed in the wind tunnel to test flutter derivative through a forced vibration method
鑒于目前橋梁斷面顫振導數識別的水平和存在的問題，本文通過對大跨度橋梁非定常氣動力、顫振分析方法及顫振導數識別方法的回顧和評述，基於現有的非定常氣動力和顫振導數的測試方法，在國家自然科學基金與鐵道部重點學科基金的聯合資助下，研究開發了一套在風洞中採用強迫振動法測試顫振導數的裝置。 -
The main contents of this paper is according to the structural characteristic of forced vibration, making use of the varying quantity data of free frequency of two different physical cantilever beam on the structural damage experiment basis, then using the bp network, genetic algorithm and the genetic bp algorithm to build up relation model between position, extent of structural damnification, and the varying quantity of free frequency
其主要內容就是根據結構受迫振動特性，利用試驗測得兩根不同物理性質懸臂梁在受損傷產生裂紋前後的固有頻率改變量，使用bp網路、遺傳演算法、遺傳bp演算法，建立了結構損傷的位置、程度與結構固有頻率損傷前後改變量之間的關系模型。 -
The objective of the test process was to examine how the signal - path loss varied after exposure to different levels of vibration, and if discontinuities could be forced through long - term fretting wear or by unbiasing the spring contact with excessive shock
測試的目標是檢驗在施加不同程度的振動之後，信號路徑損失是如何變化的，以及是否會通過長期接觸磨損或通過用過度沖擊使彈簧不偏置而形成不連續性。 -
The last ten years, many civil governments are paying mucher regarding to the utilization of the high performance concrete. self - compacting concrete is fills formwork and encloses reinforcement itself on gravitation but not on forced vibration
自密實（ self - compactingconcrete ）是指混凝土拌和物主要依靠自重，勿需振搗即可自行填充模型且包裹配筋的混凝土。 -
( 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。 -
Three interesting effects characteristic of the forced vibration in the turning point range emerge from the coupling nature : the non - bending effect, the inner - quiescent effect and the inner - membrane - motion - and - outer - bending - motion effect
揭示了轉點頻段薄殼強迫振動的3種特殊效應：無彎曲效應、內部靜止效應和內部薄膜運動外部彎曲運動效應。 -
The definition of the movement is composed by the forced vibration and self - excited vibration is presented, and verified
提出微操作器的粘滑運動由受迫振動和自激震蕩合成的思想。 -
Adding damped structure can decrease dynamic stress of blade and avoid blade fatigue failure from forced vibration
摘要為了防止透平機械長葉片因振動而導致的疲勞損壞，目前普遍採用的方法是在葉片上增加摩擦阻尼結構。 -
The frequence and modal of main stream piping were analysed under the condition of different velocity of stream and the valve taken as the centralizing mass. this paper also gives the responses of steady state under the condition that the frequency of forced vibration is 4hz 、 8hz 、 12hz respectively
將閥門作為集中質量處理，分析計算不同蒸汽流速下，某汽輪機主蒸汽管道系統的振動頻率和振型，並給出了激振力頻率分別為4hz 、 8hz 、 12hz時該管道系統的穩態響應。 -
Jump of forced vibration amplitude of a loudspeaker driven by stable galvanic source in low frequency range
恆流源驅動下的揚聲器低頻跳躍 -
A new kind of physics experimental instrument of forced vibration and resonance is introduced, conducting research of the relationship between vibration period and to arms of prong
摘要介紹了新型音叉受迫振動與共振實驗儀。通過音叉雙臂與振動周期關系的研究，可以深入理解振動式液體密度傳感器的原理及其應用。 -
Express the differences of displacement variation of a mass subjected by a free damped vibration and a forced vibration, separately
分別敘述一質量受到無阻尼的振動與強制振動時位移變化的不同。 -
Exact solutions are derived for the forced vibration of plate on elastic foundation to moving loads, which is based upon the use of the 2 - d fourier transforms to the motion equations and boundary conditions. following a series of deduction, a calculation programme by the methods of numeric integration in fortran is provided
由系統的運動方程出發，利用界面連續條件，運用積分變換方法對原方程及邊界條件進行了二維fourier積分變換，把偏微分方程組變成常微分方程組，求出加鋪層板系統在移動荷載作用下的撓度解析解。 -
Determination of the viscoelastic properties of elastomers on exposure to forced vibration at non - resonant frequencies
處在非共振頻率強迫振蕩條件下的彈性體粘彈特性的測
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