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Published in:
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2018 | OriginalPaper | Chapter

4. Random Vibration Load Factors

Author : Jaap Wijker

Published in: Miles' Equation in Random Vibrations

Publisher: Springer International Publishing

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Abstract

In general, the structural design of spacecraft structures, instruments, and structural elements is based on the static load factors specified in the launch vehicle (L/V) user’s guide(s) or by other quasi-static load (QSL) specifications. In this chapter, the calculated random load factors are based on the \(3\sigma \) values of the interface loads of a particular system and depend on the random load levels, natural frequencies, and associated modal effective masses. If the random load factors are beyond the specified quasi-static load factors, adaptation (notching) of the random dynamic loads may be considered. Examples and problems with answers included are provided.

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previous chapter Static Equivalent of Miles’ Equation
next chapter Notching and Mass Participation
Appendix
Available only for authorised users
Literature
1.
Wirsching PH, Paez TL, Ortiz H (1995) Random vibrations, theory and practice. Wiley, New York. ISBN 0-471-58579-3
2.
Wijker JJ (2008) Spacecraft structures. Springer, Berlin. ISBN 978-3-540-755524
3.
Chung YT, Krebs DJ, Peebles JH (2001) Estimation of payload random vibration loads for proper structure design. In: 42nd AIAA/ASME/ASCE/AHS/ASC structures, structural dynamics, and materials conference, AIAA-2001-1667, Seattle, 16–19 Apr 2001
4.
Stephen NG (1982) Note on the combined use of dubkerley’s and southwell’s methods. J Sound Vib 83(4):585–587CrossRef
5.
Collatz L (1949) Eigenwertaufgaben. Akademische Verlaggesellschaft Geest & Portig K.-G, LeipzigMATH
6.
den Hartog JP (1961) Strength of materials. Dover Publications Inc., Mineola
Metadata
Title
Random Vibration Load Factors
Author
Jaap Wijker
Copyright Year
2018
Book
Miles' Equation in Random Vibrations

Print ISBN: 978-3-319-73113-1

Electronic ISBN: 978-3-319-73114-8

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-319-73114-8_4

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