Modal Identification
Experimental Verification of Modal Identification of a High-rise Building Using Independent Component Analysis
... and modal responses from the output signal of ...for identification of the modal parameters from the decomposed modal ...decomposed modal responses and the change in the output ...
15
Uncertainty law in ambient modal identification-Part I: Theory
... Ambient vibration test has gained increasing popularity in practice as it provides an economical means for modal identification without artificial loading. Since the signal-to- noise ratio cannot be ...
41
Uncertainty law in ambient modal identification-Part II: Implication and field verification
... g = ). Consider identifying the first mode with an increasing number of measured dofs (each with a uniaxial accelerometer) from n = 2 to 10. Three cases of sensor layout sequence are considered. In Case 1, the increasing ...
38
Experimental Study on Modal Identification and Dynamic Amplification of a Steel Frame Structure
... Dynamic analyses using SAP2000 program were performed to investigate the dynamic amplification of the two models: original model and tuned model. The time history analysis using mode superposition method was employed. ...
8
A spectral pedestrian-based approach for modal identification
... by modal properties such as natural frequencies, mode shapes, damping ratios and modal ...via modal tests often requires expensive or difficult-to-operate equip- ment ...the modal properties ...
30
Systematic Link of Modal Identification with Model Updating
... In general, the model updating for a structure proceeds by minimizing the difference in the responses of the structure and of the model. The response of the structure can be physical quantities measured by sensors or be ...
13
Spatial-Mode-Shape Identification using a Continuous Wavelet Transform
... experimental modal analysis of a damped multi-degree-of-freedom mechanical system using a continuous wavelet ...of modal identification is applied to real mechanical systems, such as a steel beam and ...
9
Identification of Modal Parameters of a Containment Building Using Ambient Vibration Measurements
... In this paper, the ambient vibration measurements from the containment of Ulchin NPP Unit 5 and the modal parameters, i.e., resonant frequencies and corresponding mode shapes, extracted using the modal ...
8
Spatio-Frequential Characterization of Turbulence Excitations From Vibratory Responses Using Inverse Techniques Part 1 - Extraction of the modal responses from the vibratory measurements
... the modal components of Q t ( ) ...Blind Identification) methods appear well suited, see Tong et ...for modal identification and machine monitoring by several ...of modal responses ...
10
Modelling and Wavelet Based Identification of 3 DOF Vehicle Suspension System
... The important advantage of this approach is that it is not too sensitive to noise. Indeed, for all different noise levels, the modal identification was made with low error rates. The simulation results ...
10
Validation Study Illustrates the Accuracy of Operational Modal Analysis Identification
... only modal testing represents an alternative of extraordinary importance in the field of structural engineering where structures are hard to be artificially excited and there are natural sources of vibration like ...
10
Damage identification of structures using experimental modal analysis and continuous wavelet transform
... Golafshani et al. (2010)[11] presented a methodology which applies FRF data at some frequency points to arrive at perturbations to the stiffness matrix due to some defects in the structure. The method is demonstrated ...
11
Identification of Modal Parameters and Damage Detection of a Building Affected by the 2011 Tohoku Earthquake
... We performed simultaneous array measurements of the ambient vibration for a slightly damaged building and identified the mode shapes using FDD techniques. The differences in mode shapes before and after the earthquake ...
8
Identification of Dynamic Damping Properties of a Flexible Structural Adhesive
... In this paper dynamic damping properties of a nominated flexible structural adhesive have been identified using an extended-direct modal based joint identification method. It has been revealed that damping ...
9
Modal Analysis of Body in White
... A modal model of a dynamic system can be used to forecast the sensitivity of its modal parameters due to system physical parameter ...proposed modal parameter change such as shifting a natural ...
6
On the orthogonalised reverse path method for nonlinear system identification
... The CRP method offers a number of advantages as a means of nonlinear system identification. It is certainly nontrivial with respect to its calculation but it also yields information in a fairly intuitive form. The ...
36
Multi Modal Region Based Convolution Neural Network (MM RCNN) for Ethnicity Identification and Classification
... of identification of human is ethnicity data and it is a helpful identifier for different application that varies between targeted advertisement and video ...group identification of nation, race and regions ...
9
Hedges as metadiscourse in Pakistani english newspaper editorials: a corpus based study
... through modal adjectives, modal adverbs, modal exercise, epistemic verbs, approximators, modal nouns; they become impersonal reporting their stance through passivisation, discourse epistemic ...
9
Toward effective structural identification of medium-rise building structures
... operational modal analysis (OMA) ...subspace identification (SSI-data) was used to estimate modal information and up to six well-excited modes were ...
25
The mineralogical and textural characteristics of copper gold deposits related to mineral processing attributes
... One the advantages of an XMOD analysis is the grid approach which has been established to produce unbiased results. Previous authors have discussed the fundamental statistics that are required regarding a modal ...
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