noise loading 中文意思是什麼
noise loading
解釋
噪聲負載-
It has feature of small volume, high loading capability, wide power range, low noise, high efficiency, flexible in alternating directions freely, etc
它具有體積小承載能力大功率范圍廣噪聲低效率高，任意轉換方向等特點。 -
In first part of the thesis, by a review of the research on aircraft sonic fatigue, the formulas for calculating natural frequencies of the typical aircraft skin - panel structure with four edges simply - supported or four edges fixed - supported were drawn, the response of displacement and stress was analysed under the condition of random white noise loading with the steady - state or unsteady - state. the procedure how to use data of s - n curve under constant loading for predicating the fatigue life of skin - panel subjected to random loading was shown
通過對聲疲勞問題研究的回顧，根據典型飛機蒙皮壁板模型，整理了四邊固支，四邊簡支兩種邊界條件下多階模態固有頻率，非平穩及平穩隨機白噪聲載荷下的位移和應力響應，以及如何從等幅s ? n曲線求得隨機載荷應力下的疲勞壽命。 -
In addition, the error comes from the arithmetic discussed above is analyzed and an error criterion which made this arithmetic suitable for forecasting the loading noise in engineering is given based on the calculational results
並結合實際算例，對本文演算法中所產生的誤差作了比較分析，總結出了一個誤差判據。 -
For one same engine, the rotation speed and the loading of the engine are among the most key factors that contribute to the exhaust noise
對同一臺發動機來說，發動機轉速和負荷是影響其排氣噪聲的最主要因素。 -
Based on the experiment, we describe the multilevel pipe pressure loading method that can simulate the high back pressure of pump and has low noise property
摘要在試驗研究的基礎上，論述了多級節流增壓模擬水泵實際運行背壓的低噪聲特性。 -
The theoretical deduction in chapter 3 shows that the shape of load distribution used in the arithmetic is a decisive fact of the error margin size, the more the adoptive shape looks like the actual case, the smaller the error margin will be, therefore the tilt parabola shape can instead of the actual shape of load distribution in the permissible error margin when we predicting constant loading noise caused by the tail rotor of helicopter
在第三章中通過理論推導和計算比較發現，在預測直升機尾槳定常載荷噪聲時，其誤差大小取決于演算法中槳葉弦向載荷分佈的數學描述與實際弦向載荷分佈的吻合程度，而選取一種與實際弦向載荷分佈較為相似的斜拋物線形來預測噪聲所導致的誤差是很小的。
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