Channel - Loads and Dynamics
Loads and structural dynamics is a specialty branch of structural and mechanical engineering that deals with the determination of the vibration response of a structure subjected to dynamic (time varying) forces in its operational environment. In aerospace applications dynamic loads include applied forces such as wind forces, mechanical and pyrotechnic shock, acoustic pressures, engine or rocket thrust, plume impingement forces, aerodynamic fluctuating pressures, control system forces, and contact forces. In dynamic analysis the structural response may be determined as the frequencies and mode shapes of vibration, and the time histories or frequency response spectra of displacement, velocity, acceleration, internal force, or stress. Dynamic analysis can be performed by classical methods (closed-form solutions or formulae, and hand calculations) or by a number of modern numerical methods such as Finite Element Analysis (FEA), Boundary Element Analysis (BEA), and Statistical Energy Analysis (SEA). The magnitude of the responses of concern may span from millions of pounds as in a launch vehicle internal load to micro-g''s as in an on-orbit experiment vibration environment.
1/22/2025 7:01:56 PM

Channel Videos

Introduction & Data Conversion Utilities
Discipline: Loads & Dynamics
Tom Irvine
7/4/2011 3:36:00 PM
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Learning from the Past and Looking to the Future 01: Introduction to Loads & Dynamics and System Integration
Discipline: Loads & Dynamics
Dr. Curt Larsen
11/3/2016 6:45:00 PM
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Learning from the Past and Looking to the Future 03: Liftoff Facilitated Discussion
Discipline: Loads & Dynamics
Dr. Curt Larsen
1/12/2017 7:51:00 PM
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Learning from the Past and Looking to the Future 04: Stud Hangup, Part 1
Discipline: Loads & Dynamics
Dr. Curt Larsen
11/28/2016 8:01:00 PM
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Learning from the Past and Looking to the Future 07: Pogo Heritage, Part 1
Discipline: Loads & Dynamics
Dr. Hal Doiron
7/1/2016 5:00:00 PM
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Learning from the Past and Looking to the Future 07: Pogo Heritage, Part 2
Discipline: Loads & Dynamics
Dr. Hal Doiron
7/1/2016 5:05:00 PM
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Learning from the Past and Looking to the Future 11: Culture Panel
Discipline: Loads & Dynamics
Dr. Curt Larsen
1/4/2017 7:46:00 PM
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Learning from the Past and Looking to the Future 12: System Integration
Discipline: Loads & Dynamics
Dr. Curt Larsen
1/4/2017 7:46:00 PM
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Shock & Vibration: 06. Random Vibration
Discipline: Loads & Dynamics
Tom Irvine
10/3/2014 5:55:00 PM
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Shock & Vibration: 08. Leakage & Hanning Windows
Discipline: Loads & Dynamics
Tom Irvine
10/2/2014 5:55:00 PM
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Shock & Vibration: 09. Fast Fourier Transform (FFT)
Discipline: Loads & Dynamics
Tom Irvine
10/3/2014 4:16:00 PM
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Shock & Vibration: 12. Sample Rate, Nyquist Frequency & Aliasing
Discipline: Loads & Dynamics
Tom Irvine
11/14/2014 5:16:00 PM
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Shock & Vibration: 16. Power Spectral Density Synthesis
Discipline: Loads & Dynamics
Tom Irvine
2/11/2015 5:16:00 PM
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Shock & Vibration: 17. SDOF Response to Base Input in the Frequency Domain
Discipline: Loads & Dynamics
Tom Irvine
3/3/2015 4:51:00 PM
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Shock & Vibration: 18. General Method for Calculating VRS
Discipline: Loads & Dynamics
Tom Irvine
3/3/2015 4:49:00 PM
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Shock & Vibration: 19. SDOF Response to Applied Force
Discipline: Loads & Dynamics
Tom Irvine
3/3/2015 7:34:00 PM
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Shock & Vibration: 20. Force Vibration Response Spectrum
Discipline: Loads & Dynamics
Tom Irvine
3/3/2015 7:29:00 PM
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Shock & Vibration: 21. Digital Filtering, Part 1
Discipline: Loads & Dynamics
Tom Irvine
3/23/2015 8:47:00 PM
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Shock & Vibration: 22. Digital Filtering, Part 2
Discipline: Loads & Dynamics
Tom Irvine
3/24/2015 6:51:00 PM
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Shock & Vibration: 23. Integration and Differentiation of Time Histories, Part 1
Discipline: Loads & Dynamics
Tom Irvine
3/31/2015 6:55:00 AM
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Shock & Vibration: 24. Integration and Differentiation of Time Histories, Part 2
Discipline: Loads & Dynamics
Tom Irvine
3/31/2015 7:54:00 AM
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Shock & Vibration: 25. Sound File Processing
Discipline: Loads & Dynamics
Tom Irvine
3/31/2015 2:32:00 PM
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Shock & Vibration: 26. Response to Classical Pulse Excitation
Discipline: Loads & Dynamics
Tom Irvine
3/31/2015 5:33:00 PM
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Shock & Vibration: 27. Seismic Shock
Discipline: Loads & Dynamics
Tom Irvine
4/17/2015 3:35:00 PM
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Shock & Vibration: 29. Pyrotechnic Shock Response, Part 2
Discipline: Loads & Dynamics
Tom Irvine
5/19/2015 1:30:00 PM
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Shock & Vibration: 30. SRS Synthesis - Wavelets
Discipline: Loads & Dynamics
Tom Irvine
5/6/2015 12:04:00 PM
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Shock & Vibration: 31. SRS Synthesis - Damped Sines
Discipline: Loads & Dynamics
Tom Irvine
5/6/2015 1:05:00 PM
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Shock & Vibration: 34. Stress Velocity, Part 1
Discipline: Loads & Dynamics
Tom Irvine
5/6/2015 6:06:00 PM
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Shock & Vibration: 35. Stress Velocity, Part 2
Discipline: Loads & Dynamics
Tom Irvine
5/22/2015 5:06:00 PM
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Shock & Vibration: 38. Circuit Board Fatigue Response to Random Vibration, Part 1
Discipline: Loads & Dynamics
Tom Irvine
5/29/2015 3:48:00 PM
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Shock & Vibration: 41. Using Fatigue to Compare Sine and Random Environments
Discipline: Loads & Dynamics
Tom Irvine
5/29/2015 6:35:00 PM
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Shock & Vibration: 42. Non-Gaussian Random Fatigue and Peak Response
Discipline: Loads & Dynamics
Tom Irvine
5/29/2015 1:33:00 PM
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Shock & Vibration: 44. Circuit Board Fatigue Response to Random Vibration, Part 2
Discipline: Loads & Dynamics
Tom Irvine
6/8/2015 11:30:00 AM
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Shock & Vibration: 46. Shock Fatigue
Discipline: Loads & Dynamics
Tom Irvine
6/8/2015 12:40:00 PM
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Shock & Vibration: 47. PSD Special Topics
Discipline: Loads & Dynamics
Tom Irvine
6/8/2015 1:00:00 PM
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Shock & Vibration: 48. Shock Special Topics
Discipline: Loads & Dynamics
Tom Irvine
6/8/2015 2:00:00 PM
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Shock & Vibration: 51. Two Degree of Freedom Systems with Translation & Rotation
Discipline: Loads & Dynamics
Tom Irvine
6/8/2015 4:36:00 PM
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Unit 01d - Building Natural Frequencies
Discipline: Loads & Dynamics
Tom Irvine
4/11/2011 4:21:00 PM
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Unit 03 - Sine Sweep Vibration
Discipline: Loads & Dynamics
Tom Irvine
7/4/2011 3:36:00 PM
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Unit 04 - Random Vibration
Discipline: Loads & Dynamics
Tom Irvine
7/4/2011 3:36:00 PM
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Unit 06a - Fourier Transforms: Applications
Discipline: Loads & Dynamics
Tom Irvine
7/4/2011 3:36:00 PM
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Unit 10b - Electronic Component Fatigue
Discipline: Loads & Dynamics
Tom Irvine
6/27/2011 9:04:00 PM
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Unit 13 - Synthesizing a Time History to Satisfy a Power Spectral Density using Random Vibration
Discipline: Loads & Dynamics
Tom Irvine
7/4/2011 3:36:00 PM
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Unit 16 - Sample Rate & Nyquist Frequency for Data Acquisition & Telemetry Systems
Discipline: Loads & Dynamics
Tom Irvine
6/28/2011 7:22:00 PM
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Unit 17 - Aliasing Errors in Signal Analysis
Discipline: Loads & Dynamics
Tom Irvine
6/28/2011 7:27:00 PM
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Unit 21 - Shock Response Spectra of Classical Pulses
Discipline - Loads & Dynamics
Tom Irvine
2/18/2011 3:21:00 PM
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Unit 22a - Shock Response Spectrum (SRS) Seismic Pulses
Discipline: Loads & Dynamics
Tom Irvine
2/18/2011 3:21:00 PM
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Unit 22b - Wavelet Synthesis
Discipline: Loads & Dynamics
Tom Irvine
7/4/2011 3:36:00 PM
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Unit 22c - Damped Sine Synthesis
Discipline: Loads & Dynamics
Tom Irvine
7/4/2011 3:36:00 PM
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Unit 33 - Digitizing Plots
Discipline: Loads & Dynamics
Tom Irvine
7/4/2011 3:36:00 PM
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