Cable Effects Study. Tangents, Rabbit Holes, Dead Ends, and Valuable Results

Ardelean, Emil V.; Babuška, Vít; Goodding, James C.; Coombs, Douglas M.; Robertson, Lawrence M.; Lane, Steven A.

doi:10.2514/1.A32792

Cable Effects Study. Tangents, Rabbit Holes, Dead Ends, and Valuable Results

Journal Article · Mon Aug 04 00:00:00 EDT 2014 · Journal of Spacecraft and Rockets

DOI:https://doi.org/10.2514/1.A32792· OSTI ID:1106898

Ardelean, Emil V. ^[1]; Babuška, Vít ^[2]; Goodding, James C. ^[3]; Coombs, Douglas M. ^[3]; Robertson, Lawrence M. ^[4]; Lane, Steven A. ^[4]

Schafer Corporation, Albuquerque, NM (United States)
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Moog CSA Engineering, Albuquerque, NM (United States)
U.S. Air Force Research Lab., Kirtland Air Force Base, NM (United States)

Lessons learned during a study on the effects that electrical power and signal wiring harness cables introduce on the dynamic response of precision spacecraft is presented, along with the most significant results. Our study was a three year effort to discover a set of practical approaches for updating well-defined dynamic models of harness-free structures where knowledge of the cable type, position, and tie-down method are known. Although cables are found on every satellite, the focus was on precision, low damping, and very flexible structures. Obstacles encountered, classified as tangents, rabbit holes, and dead ends, offer practical lessons for structural dynamics research. The paper traces the historical, experiential progression of the project, describing how the obstacles affected the project. Methods were developed to estimate cable properties. Problems were encountered because of the flexible, highly damped nature of cables. A beam was used as a test article to validate experimentally derived cable properties and to refine the assumptions regarding boundary conditions. Furthermore, a spacecraft bus-like panel with cables attached was designed, and finite element models were developed and validated through experiment. Various paths were investigated at each stage before a consistent test and analysis methodology was developed

View Accepted Manuscript (DOE)

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000

OSTI ID:: 1106898

Report Number(s):: SAND--2013-6590J; 465010

Journal Information:: Journal of Spacecraft and Rockets, Journal Name: Journal of Spacecraft and Rockets Journal Issue: 2 Vol. 52; ISSN 0022-4650

Publisher:: AIAACopyright Statement

Country of Publication:: United States

Language:: English

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Towards Modeling of Cable-Harnessed Structures: Cable Damping Experiments Spak, Kaitlin S.; Agnes, Gregory S.; Inman, Daniel 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference https://doi.org/10.2514/6.2013-1889	conference	April 2013
Inclusion of Shear Effects, Tension, and Damping in a DTF Beam Model for Cable Modeling Spak, Kaitlin S.; Agnes, Gregory S.; Inman, Daniel 55th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference https://doi.org/10.2514/6.2014-0491	conference	January 2014

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