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forced oscillation [vibration] 【物理學】強迫振動[振蕩]。

forced quotations

Firstly , the airfoil ' s classic flutter ( at small attack angle ) , stall flutter ( near the static stall angle ) and response ( at large attack angle ) are analyzed . it is found from the numerical results that “ lock - in “ will occur at certain freestream velocity range near the static stall angle , where the frequency of the vortex will be equal to the natural frequency and the flutter has the characteristic of self - induced oscillation . when the attack angle is far from the static stall angle , the vortex will have its own frequency , which differs from the natural frequency , and the flutter has the characteristic of forced oscillation 首先研究了二維翼型的古典顫振(小攻角) 、失速顫振(失速攻角)和動力響應問題(大攻角) ,得到以下結論:在靜態失速攻角附近的一定來流速度范圍內,分離渦會發生頻率鎖定現象,分離流的頻率與固有頻率趨于相同,這時的振動呈現自激振動的特點;遠離失速攻角時分離流頻率則擺脫固有頻率的影響,此時的振動具有強迫振動的特點。

This paper introduces the evolution of analytic tools for viv response of slender marine structures , and then put forward a prediction model for viv of a slender riser in which fluid force coefficients obtained in forced oscillation tests are applied more directly than other similar models 文中介紹了細長海洋結構物渦激振動預報工具的發展,進而提出了一種基于圓柱體受迫振蕩實驗數據的預報模型。

This paper studies the systems of nonlinear neutral parabolic partial functional differential equations with continuous distributed deviating arguments , sufficient conditions are obtained for the forced oscillation of solutions of the systems 摘要研究具有連續分布偏差變元的非線性中立型拋物偏泛函數分方程系統,獲得了系統解的強迫振動的充分條件。

In the double bioreactors system , a spontaneous oscillation is displayed in the first bioreactor due to a time delay ; a forced oscillation exhibits in the second bioreactor 主要思路是設計兩個反應器串聯,使第一個反應器處于自激振蕩狀態,迫使第二個反應器產生強迫振蕩。

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仿真具有重要的指導意義。

Forced oscillation of systems of nonlinear neutral hyperbolic functional partial differential equations with continuous distribution delay 具有連續分布滯量的非線性中立型雙曲偏泛函微分方程系統的強迫振動性

Forced oscillation for solutions of systems of high order nonlinear neutral type partial differential equations with delays 高階非線性中立型時滯偏微分方程系統解的強迫振動性

Based on the data from forced oscillation tests of rigid cylindrical sections , many empirical tools were developed 近年來出現的若干經驗模型基于圓柱體受迫振蕩實驗數據。

Forced oscillation of solutions of nonlinear neutral parabolic equations with continuous distribution delay 具連續分布滯量的非線性中立型拋物方程解的強迫振動性

On the forced oscillation of solutions for systems of impulsive neutral parabolic differential equations with several delays 脈沖中立型時滯拋物方程的振動性

The limitations of such methods based on forced oscillation tests are also pointed out 文中還指出了類似的基于受迫振蕩圓柱體實驗數據的預報模型存在的缺陷。

Forced oscillation of systems of nonlinear neutral parabolic partial functional differential equations 非線性中立型拋物偏泛函微分方程系統解的強迫振動性

Forced oscillation of a class of nonlinear hyperbolic equations with continuous distribution delay 一類具連續分布滯量的非線性雙曲方程的強迫振動性

Forced oscillation for solutions of systems of higher order partial functional differential equations 高階偏泛函微分方程系統解的強迫振動性

Forced oscillation of high - order nonlinear partial functional differential equations 具連續分布滯量的高階非線性偏泛函微分方程的強迫振動性

Forced oscillation of a class of nonlinear higher order functional differential equations 一類高階非線性泛函微分方程的強迫振動性

Forced oscillation of a kind of impulsive parabolic differential equations of neutral type 一類脈沖中立型拋物方程解的強迫振動性

Forced oscillation for a class of high order partial functional differential equations 一類高階偏泛函微分方程的強迫振動性

Forced oscillation of a class of nonlinear functional partial differential equations 一類非線性偏泛函微分方程的強迫振動性