MODAL analysisMODE shapesDISCRETE systemsSTRUCTURAL dynamicsModal mass is one of the modal parameters that are required to define the dynamic behavior of a structure when a modal model is used. In experimental modal analysis (EMA), modal masses are the least reliable modal param...
[translate] abeneficial interest 有利兴趣 [translate] aThe goal of modal analysis in structural mechanics is to determine the natural mode shapes and frequencies of an object or structure during free vibration. 正在翻译,请等待... [translate] ...
振型(Mode Shapes)的重要意义在于将结构的响应分解到若干个独立的坐标轴上,坐标轴必须是独立的,即具有正交性(Orthogonality)。这样类似的概念,在我们生活中经常会用到。 The significance of mode shapes is that the structural response can be decomposed to many independent coordinates. The independence of coordi...
An analysis of the effects of wall shapes on electromagnetic waves propagating around buildings The results of an analysis of the effects of wall shapes on electromagnetic waves propagating around walls of buildings are presented. Analyzing electromag... M Matsunaga,T Matsunaga,T Sueyoshi - IEEE 被...
振型(Mode Shapes)的重要意义在于将结构的响应分解到若干个独立的坐标轴上,坐标轴必须是独立的,即具有正交性(Orthogonality)。这样类似的概念,在我们生活中经常会用到。 The significance of mode shapes is that the structural response can be decomposed to many independent coordinates. The independence of coordi...
摘要: The effect of a nonlinear elastic foundation on the mode shapes of buckling and free vibration of uniform columns/beam is addressed. The results show that no mode shape change occurs whatever may be the value of the foundation parameter gamma....
IV. Distribution of Correla- tion Times and Line Shapes in the Intermediate Dynamic Range', J... S Wefing,S Kaufmann,HW Spiess - 《Journal of Chemical Physics》 被引量: 98发表: 1988年 A Dip in Powder Deuterium NMR Lineshapes An analysis of powder 2H NMR lineshapes based on the Redfiel...
Possible results of a Nastran Finite Element Analysis (FEA) modal simulation include: Normal mode shapes Frequency Response Functions (FRFs) The following modal simulation result files and solutions are viewable with Simcenter Testlab: Nastran Solution 103 – Natural frequencies and mode shapes in outp...
UsingEq. (70), we write the mode shapes in the convenient form (74)UnS=cos2nπcl Another useful interpretation of these results is through the wavelength λ =c/f. Hence,Eq. (70)becomes (75)lnS=2nλ2 Equation (75)indicates that symmetric resonances will happen when thePWASlength is an...
Strain mode shapesStructural health monitoringModal analysisExpansion methodologyReduction/expansion approaches have been conventionally used in correlation and validation studies. Recently, these approaches have also been used to extract full-filed results on structures using limited set of data measured. The...