frf 中文意思是什麼
frf
解釋
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Payment transfers in dem or frf are counted as payment transfers in eur
涉及德國馬克或法國法郎的支付轉撥已計入歐羅的轉撥。 -
One patient ' s tumor recurred. conclusion combining the frf with the tmf is feasible for repairing extensive through - and - through cheek defects following extensive surgical dissection of buccal malignant tumors
面頸胸旋轉皮瓣復合顳肌筋膜瓣修復頰部腫瘤切除術后大面積洞穿缺損的效果理想。 -
The dynamic charactersistics of runyang suspension bridge are studied according to the real time monitoring system, and the frf is reconstructed by a few principal components
具體針對潤揚長江大橋，結合實時監測系統的測點布置，對南漢懸索橋進行了動力特性分析，根據降維后的較少主元對結構頻響進行重構。 -
The main features of the frf of long span runyang bridge, which has 1 024 dimensions, can be extracted by 27 or 17 principal components, and the reconstruction error is acceptable
對于大跨斜拉橋（潤揚長江大橋北漢斜拉橋）的1024維頻響函數可以僅用27個（或17個）主元來提取其主要特徵，精度可滿足工程需要。 -
The dynamic behavior of a long span cable - stayed bridge ( north bridge of runyang yangtse river bridge ) is calculated, the frequency response function ( frf ) is compressed using principal component analysis ( pca ), and the frf is then reconstructed based on a few, principal components
摘要針對潤揚長江大橋北漢斜拉橋進行動力分析，採用主元分析對其頻響函數進行了有效降維，並根據降維后的主元重構了結構頻響。 -
Frequency response function ( frf ) contains abundant structural dynamic characteristics, but the high redundancy and the huge data confine its application
結構的頻響函數包含了更豐富的結構動力信息，但數據量大、冗餘度高，不利於工程應用。 -
Results show that 27 or 20 principal components can extract the dominating features of frf, and the corresponding covariances of the reconstruction error are 0. 0097 and 0. 0134 respectively
誤差分析結果表明，採用27或20個主元能提取潤揚懸索橋的主要動力特徵，重構誤差的均方值分別為0 . 0097和0 . 0134 。 -
The error analysis shows that the main features of frf can be extracted by using less principal components, and the more the principal components, the more precise the reconstructed frf
誤差分析表明，可以用較少的主元向量來綜合表徵高維的結構頻響函數；並且選取的主元個數越多，對頻響函數的表徵越精確，重構誤差也越小。 -
Classically, the modal parameters of a automobile are derived from frf measurements in well - controlled laboratory conditions using hammer of shaker excitation, this requires additional measurement costs and time. however, the modal vibro - acoustic behavior of an automobile on the road may differ significantly from the one during the laboratory test due to e. g
傳統的汽車模態識別方法是在良好的實驗室控制條件下，用力錘等激振器激振車體，以此獲得準確的導納函數，來識別汽車的模態參數。
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