First, a theoretical modal analysis is performed using Euler-Bernoulli equations in order to determine the modal parameters of this beam. A software application is built for the AR headset which contains a scaled hologram of the beam and depicts the first three theoretical mode shapes. This ...
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...
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...
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]
wavelet analysisMode shapes have been playing a vital role in the research and application of bridge structural health monitoring. This paper presents a novel indirect method identifying bridge mode shapes using dynamic responses of a tractor–trailer vehicle model, which consists of one tractor and ...
components of electric field (so-calledmode shapes). Transmission regimes in waveguides with a constant cross section can be defined completely based on these electromagnetic characteristics. We can also use this information for frequency-domain studies of scattering characteristics in more complex ...
I have a system with single input and multiple outputs (SIMO) which was excited by a shaker. Mode shapes were obtained using “modalfit” function. Modal assurance criterion looks like this (1stpicture) and therefore mode shapes look the same. However, when obtaining mode shapes using anoth...
This could happen, for example, in a coupled acoustic-structural problem. The theory when using unsymmetric matrices is somewhat more complicated, but the principles are the same.A prerequisite for a mode superposition is to compute eigenfrequencies and corresponding mode shapes. This is usually ...
Pultruded structural shapes are often used as columns of intermediate length, for which the global and local buckling loads are close. Interaction between the two buckling modes is accounted for in design by an empirical interaction constant. Theoretical/numerical prediction of such a constant is ...
Potter RW Compilation of time windows and line shapes for fourier analysis. Hewlett Packard Technical Note Google Scholar Allemang RJ (2002) The modal assurance criterion (MAC): twenty years of use and abuse. In: Proceedings of the international modal analysis conference Google Scholar Schwarz BJ...