vibration of blade frequency 中文意思是什麼
vibration of blade frequency
解釋
葉頻振動-
Presents the model proposed for analyzing the vibration characteristics of shrouded blades and their calculation method by employing a wave propagation theory and modal synthesis technology coupled with a finite element method from the view point it is possible not only to conduct frequency modulation of the shrouded blades of a gas turbine, but also to utilize the friction effects between them to dissipate energy, thereby attaining the aim of vibration alleviation, as shrouded blades have been widely used in the design of high - speed turbomachinery, such as modern gas turbines and steam turbines, and with the shrouded blades forming an integral whole in a centrifugal force field, the vibration characteristics of the whole ring of blades are different from those of a single isolated blade, and this makes it essential to take into account the integral effect of blade shrouds, concludes from the calculation examples and engineering application that the above approach is valid and correct along with the possibility of considerably reducing the scale of calculation and analysis, and points out it is necessary to take into consideration the coupled effect of the whole ring of blades while the dynamic characteristics of shrouded blades is being analysed
帶冠葉片不但能調頻，還可以利用葉冠之間的摩擦效應來耗散能量，達到減振的目的.帶冠葉片在離心力場中形成一整體，其整圈葉片振動特性不同於單個孤立葉片，需考慮葉冠的整體效應.利用帶冠葉片系統的循環對稱性，提出了採用波傳播理論和模態綜合技術，結合有限元方法研究燃氣輪機帶冠葉片振動特性的分析模型和計算方法.算例和工程應用證明了該方法是效性的、正確的，並可以大大降低計算分析規模.研究表明帶冠葉片動力特性分析時必須考慮整圈葉片的耦合效應 -
Under the condition of knowing the mass, stiffness, damping and the real vibration response of stem, the propeller pressure impulses of blade frequency are deduced, these belong to structure dynamics problem that is loading identification problem
摘要在已知船舶的質量、剛度、阻尼以及實測尾端振動速度的條件下，反推出螺旋槳葉頻激振力。 -
The discontinuous phase method combined with eddy current sensor is introduced to acquire blade dynamic signal 。 the author designed the program of computing blade vibration parameters and have made computer simulation ， so we can get blade amplitude and frequency
提出採用間斷相位法和電渦流傳感器結合來獲得葉片的振動信號，編制了測量葉片振動參數的計算程序，並進行了計算機模擬模擬，得到了葉片振動振幅和頻率。 -
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。 -
Temperature effect on vibration frequency of aero - engine compressor blade
航空發動機壓氣機葉片振動頻率與溫度的關系 -
In addition, because of different matter with different natural frequency, vibration of saw blade will weaken, when it transmits in the different matter. so the noise will be reduced
由於不同物質的固有振動頻率不同，振動在不同物質間傳播時，振動會降低，由振動產生的噪聲也會降低。
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