frequency n. 1.屢次,頻仍,頻繁。 2.(脈搏等的)次數(shù),出現(xiàn)率;頻度;【物理學(xué)】頻率,周率。 audio frequency音頻。 a high [low] frequency高[低]頻。 the frequency of earthquakes in Japan 地震在日本的頻繁發(fā)生。 mean [median] frequency中頻。 resonance [resonant] frequency諧振頻率,共振頻率。 ultrahigh frequency超高頻。 ultralow frequency超低頻。 very high frequency甚高頻。 very low frequency甚低頻。
The computation of the sensitivity of structural frequency response and its response modification 結(jié)構(gòu)頻率響應(yīng)靈敏度計(jì)算及響應(yīng)修改研究
Since the structural dynamic characteristic will be changed with its damage , the great difference of structural frequency exists between the theoretical value and the practical value . the problem we are confronted with is how to correct structural fem to make the theoretical value equal to the practical value 由于模型描述實(shí)際結(jié)構(gòu)的不精確性,結(jié)構(gòu)模態(tài)參數(shù)的實(shí)測(cè)值與有限元理論值之間常常存在較大的差異,因而迫切需要解決的問題便是如何對(duì)有限元模型進(jìn)行修正,使得模型模態(tài)特性的理論值趨近于實(shí)測(cè)值。