✦ LIBER ✦

Frequency selection method for FRF-based model updating

✍ Scribed by Kye-Si Kwon; Rong-Ming Lin

Publisher: Elsevier Science
Year: 2004
Tongue: English
Weight: 356 KB
Volume: 278
Category: Article
ISSN: 0022-460X
DOI: 10.1016/j.jsv.2003.10.003

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

SELECTION OF TRAINING SAMPLES FOR MODEL

SELECTION OF TRAINING SAMPLES FOR MODEL UPDATING USING NEURAL NETWORKS

✍ C.C. CHANG; T.Y.P. CHANG; Y.G. XU; W.M. TO 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 362 KB

One unique feature of neural networks is that they have to be trained to function. In developing an iterative neural network technique for model updating of structures, it has been shown that the number of training samples required increases exponentially as the number of parameters to be updated in

DAMAGE DETECTION BASED ON MODEL UPDATING

DAMAGE DETECTION BASED ON MODEL UPDATING METHODS

✍ C.-P. Fritzen; D. Jennewein; T. Kiefer 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 369 KB

The paper examines the problem of detecting the location and extent of structural damage from measured vibration test data. The method is based upon a mathematical model representing the undamaged vibrating structure and a local description of the damage, e.g. a finite element for a cracked beam. Th

A model updating method for undamped str

A model updating method for undamped structural systems

✍ Yongxin Yuan 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 148 KB

In this paper, we first give the representation of the general solution of the following least-squares problem (LSP): Given a full column rank matrix X ∈ R n×p , a diagonal matrix ∈ R p×p and matrices andM([1, r]) are, respectively, the r × r leading principal submatrices of K and M. We then conside

Mid-frequency interior noise modelling u

Mid-frequency interior noise modelling using FRF based substructuring : Katrien Wyckaert (LMS International N/V)

📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 132 KB

of time to fix jamming problems caused by irregular paint dust or slant fastening. These are typical problems for screw fastening, and the problems depend upon Nut and Bolt thread tolerance, level of surface finish, nut seat shape, bolt edge shape, tool capacity and fastening process. This paper d

SELECTION AND UPDATING OF PARAMETERS FOR

SELECTION AND UPDATING OF PARAMETERS FOR AN ALUMINIUM SPACE-FRAME MODEL

✍ J.E. MOTTERSHEAD; C. MARES; M.I. FRISWELL; S. JAMES 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 370 KB

A three-storey aluminium space frame is modelled using beam elements with unrepresentative rigid joints. Five model-updating experiments are carried out using di!erent sets of updating parameters. All of them are shown to produce improved predictions, even for modi"ed con"gurations of the frame. The

FREQUENCY DOMAIN ARX MODEL AND MULTI-HAR

FREQUENCY DOMAIN ARX MODEL AND MULTI-HARMONIC FRF ESTIMATORS FOR NON-LINEAR DYNAMIC SYSTEMS

✍ D.E. ADAMS 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 318 KB

Non-linear dynamic systems respond at frequencies other than the excitation frequency; however, standard frequency response function estimators for linear systems do not accommodate this harmonic distortion. A new multi-harmonic frequency response function estimator that utilizes discrete frequency