Consider a single-degree-of-freedom system subject to base excitation. Assume a case where the base input is a sine tone which must be converted to an “equivalent” narrowband PSD. The narrowband PSD must be greater than or equal to the sine tone in terms of peak… Read more
Dear brothers, unless we train ministers capable of warming people’s hearts, of walking with them in the night, of dialoguing with their hopes and disappointments, of mending their brokenness, what hope can we have for our present and future journey? It isn’t true that God’s… Read more
Here is a Matlab GUI script to calculate displacement, velocity, and acceleration at a given frequency for a steady-state sine function. sine_amplitude.zip This module is also included in: Vibrationdata Matlab Signal Analysis Package – Tom Irvine
Engineers prepare the MESSENGER spacecraft for a vibration test at The Johns Hopkins University Applied Physics Laboratory, Laurel, Md., where the Mercury-bound NASA spacecraft was designed and built. * * * Introduction Flight configured spacecraft are subjected to base input vibration tests for certain programs.… Read more
N571UP, the aircraft involved, seen taking off from Dubai in November 2008 * * * A UPS Boeing 747-400 flying between Dubai International Airport and Cologne Bonn Airport crashed close to Dubai airport, killing the two crew members, on September 3, 2010. The aircraft had… Read more
At times our own light goes out and is rekindled by a spark from another person. Each of us has cause to think with deep gratitude of those who have lighted the flame within us. ~Albert Schweitzer * * * I met a stranger in… Read more
I may have an upcoming opportunity to perform signal processing on some satellite data for tracking storms and ocean wave heights… Anyway, I am studying some radar books in preparation. * * * Here are some Matlab scripts for monostatic pulsed radar systems: target_range.zip -… Read more
Matlab GUIDE is a package for generating graphical user interface (GUI) scripts. Extracting Numerical Data from a Matlab uitable The table format was set to text using the Table Property Editor. The number of rows is equal to N. There are three columns of data: peak,… Read more
Please send me an Email if you are going to use this package. Also, you are welcome to participate in the Shock & Vibration courses. Thank you,Tom IrvineEmail: tom@irvinemail.org * * * License information: The software packages on the following links are freely placed in… Read more
When we spread the gospel of Jesus Christ, we receive forgiveness for our own sins. * * * The following verse applies to both the giver and receiver. Let him know, that he which converteth the sinner from the error of his way shall save… Read more