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vtbud.txt
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vtbud.txt
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Updates to Engineering Vibration Toolbox since 1/1/98
-----------------------------------------------------
+--------+------------------+------------------------------------------------------------------------------+
|Date |code/s |change |
+========+==================+==============================================================================+
|11/27/17|vtb4_1 |Fixed help | |
+--------+------------------+------------------------------------------------------------------------------+
|10/20/17|vtb3_3 |Correct error caused by Mathworks changing behavior of legend | |
+--------+------------------+------------------------------------------------------------------------------+
|09/14/17|sdofcf |Remove sdofcf | |
+--------+------------------+------------------------------------------------------------------------------+
|09/14/17|vtb7_4 |Replaced by higher fidelity mdofcf code. |
+--------+------------------+------------------------------------------------------------------------------+
|09/12/17|mdofcf |updated example |
+--------+------------------+------------------------------------------------------------------------------+
|09/12/17|mdofcf, sdofcf |added to library. will be formally merged in the future. |
+--------+------------------+------------------------------------------------------------------------------+
|09/07/17|vtbud |vtbud was deleting folder before path. Reverse order to preclude error. |
+--------+------------------+------------------------------------------------------------------------------+
|09/07/17|vtb7_4 |warning to deprecate malfunctioning code |
+--------+------------------+------------------------------------------------------------------------------+
|02/21/16|vtbchk |vtbchk was looking in the wrong place for update time stamps still. Moved to |
| | |github |
+--------+------------------+------------------------------------------------------------------------------+
|02/20/16|vtbchk |str2num should have been num2str |
+--------+------------------+------------------------------------------------------------------------------+
|07/23/15|vtbud |Change website of Vibration Toolbox |
+--------+------------------+------------------------------------------------------------------------------+
|04/14/14|vtb7_5 |Fix automated upper bound on FRF frequency for calculations. |
+--------+------------------+------------------------------------------------------------------------------+
|10/03/12|vtbchk |Fix crash when off internet, provide warning. |
+--------+------------------+------------------------------------------------------------------------------+
|06/27/12|vtbud |Avoid errors when run without GUI. |
+--------+------------------+------------------------------------------------------------------------------+
|06/27/12|Comments |vtoolbox version number now displaying properly using VER |
+--------+------------------+------------------------------------------------------------------------------+
|10/20/11|vtb3_3 |Added example illustrating the Gibb's effect. |
+--------+------------------+------------------------------------------------------------------------------+
|05/29/09|vtb4_4 |Simulate forced response of MDOF system (uses lsim) |
+--------+------------------+------------------------------------------------------------------------------+
|04/13/09|vtb2_4 |Add missing argument back in (opt wasmissing) |
+--------+------------------+------------------------------------------------------------------------------+
|01/23/08|vtb10_1 |Fixed incompatible legacy code |
+--------+------------------+------------------------------------------------------------------------------+
|07/14/08|vtb7_5 |Corrected error of calling unavailable function ssit |
+--------+------------------+------------------------------------------------------------------------------+
|07/14/08|vtb7_6 |New code to find eigenvalues and mode shapes using power method. |
+--------+------------------+------------------------------------------------------------------------------+
|04/25/08|vtbchk |New code called at the end of each function to provide automated update |
| | |checking. Function is run at the termination of all major functions. |
+--------+------------------+------------------------------------------------------------------------------+
| |vtb3_1 |Corrected aliasing issue reported by Pappa, added settling time marks. |
+--------+------------------+------------------------------------------------------------------------------+
|04/15/08|vtb1_4 |Added to the help |
+--------+------------------+------------------------------------------------------------------------------+
|02/22/08|vtb6_3 |Free-free conditions were missing one mode |
+--------+------------------+------------------------------------------------------------------------------+
|02/20/08|vtb6_3 |Simply supported modes were broken |
+--------+------------------+------------------------------------------------------------------------------+
|02/20/08|vtb6_5 |Boundary condition type wasn't being used |
+--------+------------------+------------------------------------------------------------------------------+
|11/23/07|vtb3_5 |Improved to more easily handle even/odd differences |
+--------+------------------+------------------------------------------------------------------------------+
|09/02/07|vtb6_3 |Didn't plot modes correctly |
+--------+------------------+------------------------------------------------------------------------------+
|08/29/07|vtb6_5 |New code, generates FRF for beam |
+--------+------------------+------------------------------------------------------------------------------+
|07/20/07|vtb6_3 |Added rigid body modes |
+--------+------------------+------------------------------------------------------------------------------+
| |vtb6_3 |Added animations |
+--------+------------------+------------------------------------------------------------------------------+
| |vtb6_3 |Changed input format |
+--------+------------------+------------------------------------------------------------------------------+
| |vtb6_3 |Mass normalized mode shapes |
+--------+------------------+------------------------------------------------------------------------------+
|06/25/07|vtb1_3 |Corrected description of vtb1_3 |
+--------+------------------+------------------------------------------------------------------------------+
|11/20/06|vtb4_1 |Corrected reported wrong modes |
+--------+------------------+------------------------------------------------------------------------------+
|11/17/06|vtb3_5 |Added: Plot Fourier series |
+--------+------------------+------------------------------------------------------------------------------+
|11/10/06|vtbud |Improved vtbud so false updates won't be reported. |
+--------+------------------+------------------------------------------------------------------------------+
|11/10/06|vtbud |Fixed unix installation to avoid repeatedly adding path to startup.m file. |
+--------+------------------+------------------------------------------------------------------------------+
|10/24/06|vtb1_3 |Attempts to automatically correct for bad step size choices. |
+--------+------------------+------------------------------------------------------------------------------+
|10/23/06|vtb |Improved help. |
+--------+------------------+------------------------------------------------------------------------------+
|10/23/06|vtbud |Fix bugs, error checking. |
+--------+------------------+------------------------------------------------------------------------------+
|10/21/06|vtb1_3 |Only for single degree of freedom systems. Doesn't require editing separate |
| | |file. |
+--------+------------------+------------------------------------------------------------------------------+
|10/20/06|vtbud |Now can install and/or update the toolbox. |
+--------+------------------+------------------------------------------------------------------------------+
|06/12/06|vtb4_1 |Incorporated Cholesky Decomposition |
+--------+------------------+------------------------------------------------------------------------------+
|09/14/05|vtb3_3 |Error regarding using i as a variable fixed. |
+--------+------------------+------------------------------------------------------------------------------+
|05/15/01|vtb3 |Changed help for vtb3_3 |
+--------+------------------+------------------------------------------------------------------------------+
|05/15/01|vtb3_3 |Fixed vtb3_3 when n is not given by user. |
+--------+------------------+------------------------------------------------------------------------------+
|01/01/01|vtb1_2 |Changed the word undamped to unforced in the help |
+--------+------------------+------------------------------------------------------------------------------+
|11/26/00|vtbud |Changed URL for vtbud. Created vtbud.txt to log changes |
+--------+------------------+------------------------------------------------------------------------------+
|10/30/00|vtb8_1 |Fixed no longer available 'i' plot type. |
+--------+------------------+------------------------------------------------------------------------------+
| |vtb8_3 |Fixed no longer available 'i' plot type. |
+--------+------------------+------------------------------------------------------------------------------+
| |vtb8 |Updated documentation file name. |
+--------+------------------+------------------------------------------------------------------------------+
|07/24/00|vtb1_3 |Corrected help (vtb9_3 -> vtb1_3) and spelling |
| | |error. |
+--------+------------------+------------------------------------------------------------------------------+
|05/09/00|vtb7_4 |Curve fitting is much more robust, much less likely to fail. |
| | | |
+--------+------------------+------------------------------------------------------------------------------+
|04/28/00|vtb2_3 |Corrected phase plot |
| | | |
+--------+------------------+------------------------------------------------------------------------------+
|04/28/00|numerous |Replaced greek names with greek characters and made subscripts show up |
| | |properly. |
+--------+------------------+------------------------------------------------------------------------------+
|04/24/00|vtb2_4 |Added plotting options. |
+--------+------------------+------------------------------------------------------------------------------+
|04/24/00|vtb2_3 |Added plotting options. |
+--------+------------------+------------------------------------------------------------------------------+
|04/21/00|vtb2_3 |Added legend & default values |
+--------+------------------+------------------------------------------------------------------------------+
|04/21/00|vtb2_4 |Added default values |
+--------+------------------+------------------------------------------------------------------------------+
|04/20/00|vtb2_4 |Now allows a list of values of zeta |
+--------+------------------+------------------------------------------------------------------------------+
|03/21/00|vtb1_5 |Calls the old vtb2_6. vtb2_6 has been grandfathered. |
+--------+------------------+------------------------------------------------------------------------------+
| |vtb1_2 |Is the old vtb9_2. vtb9_2has been grandfathered. |
+--------+------------------+------------------------------------------------------------------------------+
| |vtb1_3 |Is the old vtb9_3. vtb9_3 has been grandfathered. |
+--------+------------------+------------------------------------------------------------------------------+
| |grandfathered. | |
+--------+------------------+------------------------------------------------------------------------------+
| |vtb1_3ex |Is the old vtb9_3ex. vtb9_3ex has been grandfathered. |
+--------+------------------+------------------------------------------------------------------------------+
| |grandfathered. | |
+--------+------------------+------------------------------------------------------------------------------+
| |vtb1_4 |Is the old vtb9_4. vtb9_4 has been grandfathered. |
+--------+------------------+------------------------------------------------------------------------------+
| |grandfathered. | |
+--------+------------------+------------------------------------------------------------------------------+
| |vtb4_3 |Is the old vtb9_1. vtb9_1 has been grandfathered. |
+--------+------------------+------------------------------------------------------------------------------+
|02/29/00|vtb3_3 |Can now run with no arguments. |
+--------+------------------+------------------------------------------------------------------------------+
|02/28/00|vtb2_3 |Can now take a list of values for zeta. |
+--------+------------------+------------------------------------------------------------------------------+
|02/04/00|vtb7 |Added references to vtb7_4 and vtb7_5 |
+--------+------------------+------------------------------------------------------------------------------+
|01/13/00|numerous |Removed GUI buttons for printing since recent versions of Matlab enable such |
| | |GUI capabilities on all platforms. Also, removed a number of figure |
| | |commands. This will allow the user to invoke the hold command and plot |
| | |multiple graphics on a single figure. |
+--------+------------------+------------------------------------------------------------------------------+
|01/13/00|readme.txt |Updated version of toolbox to 5 to represent dropping of support for version |
| |Contents.m |4 of Matlab in future releases. |
+--------+------------------+------------------------------------------------------------------------------+
|11/08/99|vtb7_4 |Improved robustness of curve fitting with the addition of a few checks. Note: |
| | |This code does not fit simultaneous FRFs. Thus the results for MDOF systems |
| | |can vary. |
+--------+------------------+------------------------------------------------------------------------------+
|10/07/99|vtb7_4 |Added. Now FRF curve fitting can be performed to ID damping, natural |
| | |frequencies, and even mode shapes. There is enough there to perform a |
| | |complete modal analysis. |
+--------+------------------+------------------------------------------------------------------------------+
|10/07/99|vtb7_5 |Added. Now FRFs of computational models can be obtained, viewed, or used in |
| | |vtb7_4. Includes receptance, mobility, and inertance, along with output of |
| | |the corresponding frequency vector. |
+--------+------------------+------------------------------------------------------------------------------+
|11/20/98|readme.txt |Updated to clarify installation instructions |
+--------+------------------+------------------------------------------------------------------------------+
|11/11/98|vtbud |Modified URL for web page to use shorter (~) link |
+--------+------------------+------------------------------------------------------------------------------+
|11/11/98|vtb3_3 |Modified example to match default function (Example 3.3.1, T=1) |
+--------+------------------+------------------------------------------------------------------------------+
|04/03/98|vtbud |Running vtbud automatically displays the most recent vtb updates in your web |
| | |browser |
+--------+------------------+------------------------------------------------------------------------------+
|04/03/98|vtb,vtoolbox |Added error response when called without help |
+--------+------------------+------------------------------------------------------------------------------+
|03/30/98|Contents |Added reference to |
| | |web page |
+--------+------------------+------------------------------------------------------------------------------+
|03/30/98|Readme |Corrected reference to new web page |
+--------+------------------+------------------------------------------------------------------------------+
|03/30/98|vtb |Added reference to web page |
+--------+------------------+------------------------------------------------------------------------------+
|03/17/98|vtb4_2 |Incorrect matrix exponential fixed |
+--------+------------------+------------------------------------------------------------------------------+
Run vtbud to compare your version to the most current one.
More information is available at the Engineering Vibration Toolbox
website: http://www.cecs.wright.edu/~vtoolbox