Webinar 8 – Waterfall FFT

PowerPoint File: Webinar_8_Waterfall_FFT.ppt Audio/Visual File:  NESC Academy Waterfall FFT – Recommend viewing in Firefox with Sliverlight plugin * * * Data Each of the following has two columns: time(sec) & accel(G) terrier_black_brant_2KHz_lpf_x.zip solid_motor_flight.txt Fwd_Dome_ignition.txt Orion_PA1_LS51v.txt * * * Terrier Black Brant Video * * * Matlab script:… Read more

Webinars 6 & 7 – Leakage Error, Hanning Window, FFTs

Here are the materials. PowerPoint Files: webinar_6_Leakage_Hanning.ppt webinar_7_FFT.ppt * * * Audio/Visual Files – Recommend viewing in Firefox with Sliverlight plugin NESC Academy FFT NESC Academy Leakage Hanning Window * * * Reference: Hanning Window Compenstation Factor * * * Matlab script: Vibrationdata Signal Analysis Package * *… Read more

Webinar 5 – Fourier transforms

Here are the materials for Fourier transforms: PowerPoint File: webinar_Fourier_transform.ppt Audio/Visual File:  NESC Academy Fourier transforms – Recommend viewing in Firefox with Sliverlight plugin Matlab script: Vibrationdata Signal Analysis Package * * * Python PowerPoint File:  webinar_Fourier_transform_python.ppt * * * Data Tuning Fork – time(sec) & unscaled… Read more

Webinar Unit 4 Random Vibration

Here are the materials for random vibration: PowerPoint File: webinar_random_vibration.ppt Audio/Visual File: NESC Academy Random Vibration – Recommend viewing in Firefox with Sliverlight plugin Matlab script: Vibrationdata Signal Analysis Package * * * Python version PowerPoint File:  webinar_4_Random_python.ppt * * * See also: NAVMAT-P9492 Random Vibration… Read more

Webinar Unit 3 Sine Sweep Vibration

Here are the materials for sine sweep vibration: PowerPoint File: webinar_sine_sweep.ppt Audio/Visual File: NESC Academy Sine Sweep – Recommend viewing in Firefox with Sliverlight plugin * * * Here is the solid rocket motor accelerometer data, (time (sec) & Accel(G) ):   solid_motor.dat Paper: Sine Sweep Frequency Parameters… Read more

Webinar Unit 2 Sine Vibration

Here are the materials for sine vibration: PowerPoint File: webinar_sine.ppt Channel beam accelerometer data: channel.txt time(sec) & accel(G) Papers: POGO Oscillation Smallwood Algorithm Matlab script Vibrationdata Signal Analysis Package * * * Here is the audio/visual file link: NESC Academy Sine Vibration – Recommend viewing in Firefox… Read more

Webinar Unit 1 – Natural Frequencies

We held our first Shock & Vibration Webinar on January 17, 2014. This presentation was sponsored by the NASA Engineering and Safety Center, to which I express gratitude. A link to the audio/visual recording will be posted here in the near future. In addition, here… Read more