Abstract
The recently issued specification ANSI/ASA S2.62-2009, Shock Test Requirements for Equipment in a Rugged Shock Environment, specifies shock severity levels according to the plateau level on the PVSS plotted on 4CP, (pseudo velocity shock spectrum plotted on four coordinate paper). The levels run from 1 - 10 meters per second or 40 to 400 ips. These ANSI levels provide an example of how to identify shock severity. Examples are plotted of both PVSSs and SRSs divided by 2 pi f, to form an acceleration PVSS or APVSS on 4CP. These show that the plateau of the APVSS is the same as the PVSS. Thus published SRSs can be evaluated with constant velocity lines drawn on the SRS which also show the severe frequency range. The paper shows severity levels of many SRSs. Several pyroshock references that refer to plateau severities of 50 ips as very mild, 100 ips as moderate, and 300 ips as very severe are examples.
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References
Hunt, F. V. “Stress and Strain Limits on the Attainable Velocity in Mechanical Vibration;” J. Acoustical Soc. Am. Vol 32, no. 9, Sept 1960, pp 1123-1128.
Gaberson, H. A. and Chalmers, R. H., “Modal Velocity as a Criterion of Shock Severity,” Shock and Vibration Bulletin 40, Part 2, Dec 1969, pp 31-49.
Gaberson, H. A,, "Pseudo Velocity Shock Spectrum Rules for Analysis of Mechanical Shock"; IMAC XXV, Orlando, FL; Society of Experimental Mechanics; Bethel, CT, http://www.sem.org; Feb 2007; p 367
Gaberson, H. A, "Pseudo Velocity Shock Spectrum Rules and Concepts", Proceeding of the Annual Meeting of the Mechanical Failure Prevention Technology Society [http://www,mfpt.org] Apr 07
Gaberson, H.A. SAVIAC Training lecture notes, Part 2, available on http://www.SAVIAC.org/ under Shock and Vibration Symposium, Training. 2008, 2007, etc.
Gaberson, H.A., D. Pal, and R.S. Chapler, "Shock Severity Measurement for Facilities Equipment" 69th Shock and Vibration Symposium, October 1998; published in the meeting proceedings spring of 1999.
7.. Piersol, Allan G., "Preliminary Design Procedures for Equipment Exposed to Random Vibration Environments", J. of the IEST, Winter 2001, pp 23-27
ANSI Equipment ruggedness specification ANSI/ASA S2.62-2009: Shock Test Requirements for Equipment in a Rugged Shock Environment.
STANAG 4549, NATO Standarization Agreement (STANAG) Testing of Surface Ship Equipment of Shock Testing Machines, 2008
10.. Eubanks, R.A. and Juskie, B.R., “Shock Hardening of Equipment,” Shock and Vibration Bulletin 32, Part III, 1963, pp 23-73
Gaberson, H.A., and Eubanks, Ph.D., S.E.,R.A., "Simplified Shock Design for Equipment Installation," NCEL Technical Note, N-1622, March 1982 ADA AD114331.
Morse, Robert, presentation at Spacecraft & Launch Vehicle Dynamics Environments Workshop Program - June 20, 2000, Aerospace Corporation, El Segundo, CA
Walton, W. Scott; "Ballistic Shock Fundamentals"; Shock and Vibration Symposium; 2001
Kurng Y. Chang, "Pyrotechnic Devices, Shock Levels And Their Applications", Pyroshock Seminar, ICSV9, July 8 - 11,2002, Orlando, FL, Slide 18a
Bateman, Vesta I. "Are All Pyroshock Simulations with Resonant Fixtures the Same?", 79th Shock and Vibration Symposium, Oct 2008, Orlando, FL
17.. Gaberson, H. A, "Use of Damping in Pseudo Velocity Shock Analysis", IMAC XXVI, Orlando, FL; Society of Experimental Mechanics; Bethel, CT, http://www.sem.org; Feb 2008
"Harris' Shock and Vibration Handbook" 5th Ed. 2002, Ed by Cyril M. Harris and Allan G. Piersol, p 1.20
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Gaberson, H.A. (2011). Estimating Shock Severity. In: Proulx, T. (eds) Rotating Machinery, Structural Health Monitoring, Shock and Vibration, Volume 5. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-9428-8_43
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DOI: https://doi.org/10.1007/978-1-4419-9428-8_43
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