Download Shareware and Freeware Software for Windows, Linux, Macintosh, PDA

line Home  |  About Us  |  Link To Us  |  FAQ  |  Contact

Serving Software Downloads in 976 Categories, Downloaded 31.344.102 Times

The LAMB toolbox 1.0

  Date Added: April 24, 2013  |  Visits: 344

The LAMB toolbox

Report Broken Link
Printer Friendly Version

Product Homepage
Download (24 downloads)

Description: This program is based on the Ph.D. thesis[1]: "LAMB: a SIMULATION TOOL for AIR-COUPLED LAMB WAVE BASED ULTRASONIC NDE SYSTEMS" from The Polytechnic University of Catalonia (UPC), Department of Electronic Engineering (EEL) 2010.The software simulates the behaviour of an entire air-coupled ultrasonic Non-Destructive Evaluation (NDE) system based on 1D linear array transducers.It is composed on three sections that allow the calculation of the pressure signals in air (plate's excitation & radiation zones) and the Lamb wave vibrations (vertical displacements) on the surface an infinite isotropic ideal single plate.The acoustic field engine of the toolbox is the FIRST (Field Impulse Response Software) program based on the ImpulseResponse Method (IRM) for rectangular apertures [2]. This routine is capable of simulating plane and cylindrical concave 1D arrays. Bi-dimensional apertures on emission and reception are not yet implemented.The plate propagation module is integrated by: 1) the Lamb wave dispersion data calculator (routine: 'main_LAMB_GMM_0v1.m' separate available from the toolbox) and a discrete generalization of the Time Harmonic Solution[3] for finite number 'num_p' of circular excitation 'regions' on the laminate surface.In the routine 'f_THS_compute' there is the possibility to change the default THS core calculation method to other two alternative approaches: 1) Mit model[4,5] or 2) Achenbach 'punctual' model[6,7].References:[1] Prego-Borges, J.L. d-deDULamb: a simulation tool for air-coupled Lamb wave based ultrasonic NDE systemsd-deDt. In Proceedings of the 1st. Barcelona Forum on Ph.D. Research in Electronic Engineering NdlDo2 (2010) Universitat Politdoducnica de Catalunya.[2] San Emeterio J.L. and Ullate L. "Diffraction impulse response of rectangular transducers". J. Acoust. Soc. Am. 92(2) (August 1992).[3] Ditri J.J., Pilarski A., Pavlakovic B. and Rose J.L. "Generation of guided waves in a plate by axisymmetric normal surface loading". Review of Progress in Quantitative NDE 13 (1994), 133d-deOCt140. Ed. by D.O. Thomson and D.E. Chimenti, Plenum Press.[4] Shi, Y. Analisys of optimim Lamb wave tuning. PhD thesis, Department of Civil and Enviromental Engineering, Massachusetts Institute of Technology, Feb. 2002.[5] Shi, Y., Wooh, S.-C., and Orwat, M. Laser-ultrasonic generation of lamb waves in the reaction force range. Elsevier,Ultrasonics 41 (August 2003), 623d-deOCt633.[6] Achenbach, J.D., and Xu, Y. "Use of elastodynamic reciprocity to analyze point-load generated axisymmetric waves in a plate". Elsevier, Wave Motion 30 (September 1998), 57d-deOCt67.[7] Achenbach, J. D., and Xu, Y. Wave motion in an isotropic elastic layer generated by a time-harmonic point load of arbitrary direction. J. Acoust. Soc. Am. 106, 1 (July 1999), 83d-deOCt90.

Requirements: No special requirements
Platforms: Matlab
Keyword: Acoust August Axisymmetric Catalunya Ditri Emeterio Guided Impulse Loadingquot Normal Pilarski Polit Cnica Quotdiffraction Quotgeneration Response Transducersquot Ullate Universitat Waves
Users rating: 0/10

License: Freeware Size: 15.22 MB
Development Tools  -  SoundSim 2D Elastic Wave Simulator 1.0
SoundSim's 2D Elastic Wave Simulator can be used to visualize and explore 2D elastic waves. This release contains SoundSim's 2D Elastic Simulation Core and two sample MATLAB scripts. The first simulates an impulse on the top of a steel block and...
143.36 KB  
Misc. Web Browser Tools  -  Impulse for Vista / Windows 7 3.28.618
Impulse is Stardock's new state of the art digital distribution platform. Impulse allows users to quickly and easily find their favorite game or software and download it automatically to their PC. Impulse has multiple features that makes it one...
6.5 MB  
Screen Savers  -  August 20 Calendar Windows 7 Theme 1
August 2011 Calendar Windows 7 Theme with 10 backgrounds with calender of the month of August 2011. This is a high resolution Windows 7 Theme which will fit very well into nearly all desktop and laptop screens with Windows 7 operating system....
14.67 MB  
Communication  -  Impulse Noise Addition 1.0
This function can be used for adding different kind of impulse noises (i.e. Salt & Pepper noise and Random-value impulse noise) to image.Salt & Pepper Noise values are 0 or 255 but random-value impulse noise values vary from 0 to :...
10 KB  
Communication  -  Data Analysis with MATLAB Products - August 2006 Webinar Files 1.0
he zip file contains the demo shown on August 10, 2006 for the Webinar titled "Data Analysis with MATLAB Products". The demo requires Signal Processing and Statistics Toolboxes. It is recommended that the webinar is viewed prior to running the...
9 MB  
Libraries  -  Rose::DB::Object::Tutorial 0.765
Rose::DB::Object::Tutorial is a guided tour of the basics of Rose::DB::Object. INTRODUCTION This document provides a step-by-step introduction to the Rose::DB::Object module distribution. It demonstrates all of the important features using a...
481.28 KB  
Audio Tools  -  CheeseTracker 0.9.9
Cheesetracker is a portable Impulse Tracker clone. CheeseTracker supports all Impulse Tracker features except a few. For now the main goal is to remain at IT Feature set level, but very soon we might be adding new features to it..
839.68 KB  
Audio Tools  -  ChibiTracker 1.0 RC1
ChibiTracker is a portable IT (Impulse Tracker) clone. This project is not a 100% clone though, as it adds more features, such as chorus and reverb, stereo samples, an advanced sample editor and more. The user interface also presents some changes,...
481.28 KB  
Communication  -  Brown Acoustic Simulator 1.0
This simulator creates a source to microphone impulse response in complex room environments. It's based on the image method by Steven Boll'79. You may select frequency dependent wall coefficients and orientation dependent sources. Please refer to...
4.31 MB  
Development Tools  -  Using Statistics to Analyze Uncertainty in System Models 1.0
Demo files from the 30 August 2007 Webinar - Reliability Analysis and Robust Design using MATLAB(R) Products"Webinar direct link: will need MATLAB and Statistics Toolbox, Optimization Toolbox, and Simulink to...
10 KB  
Scripts  -  Free Ecommerce website creator 1.2
Free Ecommerce website creator is a free PHP shop creating script. This allows you to put a online shop on your own website. Create your own free ecommerce website for Your Business. Create an online shop using easyGUI online shop creator. The...
1.44 KB  
Scripts  -  MochiGames PHP Script ZDR 1.00
MochiGames PHP Script ZDR is web site, ready for use, for flash games. These flash games are downloaded automatically by "MochiGames PHP Script ZDR" from MochiGames media. The use of the games is free, you can use your own Mochi Publisher ID and...
368.54 KB  
Scripts  -  Php Chat 2.0
Add a free php site, single sign-on and multiple skins, 100% free 1. Server Modes: The chat server has paid mode and free mode. If the free chat mode, a free chat room will be assigned to your website with your domain as the room name. 2....
938.87 KB  
Scripts  -  Nibbleblog 3.0.1
Nibbleblog it's a powerful engine for creation and manipulation of BLOG's completely free. Very simple to install and configure (Only 1 step). The database used is based on XML files and this way it is not necessary to use MySQL or similar DBMS....
371.09 KB  
Scripts  -  PHP File Manager | CloudOsys 2.9b8
CloudOsys is a PHP file manager, a tool that allows your visitors upload files such as media content directly to your website. Your visitors will upload files directly to your website, where they can share and comment on them. Through cloud...
1.41 MB  
Communication  -  Contact Form Script 1
This PHP script is a fully functioning contact form which can be easily installed on your own website. It enables users to contact you directly by filling out the form. The PHP script is completely FREE to use, and none of the code is encoded...
19 KB  
Communication  -  Ethernet Source with SimEvents 1.1
When audio or video is transmitted over an Ethernet network, the data is usually transmitted in bursts of packets with long idle times in between bursts. SimEvents is a good tool for modeling those types of sources and studying the effects of...
2.8 MB  
Communication  -  Autocorrelation and Crosscorrelation function of gold sequence 1.0
This m-file finds and plots the autocorrelation and crosscorrelation function(ACF and CCF) of generated Gold codes of length 31.Crosscorrelations are three valued.
10 KB  
Communication  -  Zoom Spectrum 1.0
This function returns N point DFT samples of 2dw band of Fourier transform of a sequence. Typically, fft() returns N samples of Fourier transform ranging from 0 to 2pi. This function takes the N-point DFT samples and returns N-point samples...
10 KB  
Communication  -  BER of BPSK DS-SS System 1.0
This m-file finds the bit error rate performance of BPSK DS-SS system over (i) AWGN channel and (ii) Slow Rayleigh fading channel corrupted by AWGN. Compare the performance with simple BPSK system.In this simulation I have used two functions.So to...
10 KB