Weld Joint Design for EVA Repair of On-Orbit Fluid Systems
Publication: Journal of Aerospace Engineering
Volume 8, Issue 4
Abstract
Welding in space will be an important process for the permanent repair of both low- and high-pressure fluid line assemblies used on large spacecraft. Space station fluid systems are candidates for in-space repair. They provide a variety of tubing materials, sizes, pressures, and working fluids as well as including ancillary systems that demonstrate typical constraints to the repair process for a more realistic overall scenario. Damage to on-board fluid systems could occur as a product of faulty or fatigued joints, micrometeoroid impacts, collision with other objects, and over-pressure strain or burst. Incorporating terrestrial experience with automatic pipe-welding tools and that of both the U.S. and former Soviet space programs in space welding, hypothetical repair scenarios were analyzed using Space Station Freedom as a representative baseline. Weld joint design criteria are then derived. A new weld joint for in-space repair, which meets these system-derived criteria, is presented and a stress analysis is performed.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Anderson, R. H. (1991). “EVA/telerobotic fluid line repair tool development.”Proc., welding in space and the construction of space vehicles by welding, American Welding Society, Miami, Fla.
2.
Belew, L. F., and Stuhlinger, E. (1973). “Skylab a guidebook.”NASA EP-107. Marshall Space Flight Center, Ala.
3.
Blake, A. (1982). Practical stress analysis in engineering design . Marcel Dekker, Inc., New York, N.Y., 464–467, 494–496.
4.
“Contamination control requirements.” (1989). SN-C-0005, Revision C, NASA Johnson Space Center, Houston, Tex.
5.
Davies, A. C. (1984). The science and practice of welding, Vol. 2, Cambridge University Press, Bath, Great Britain.
6.
De Groh, K. K., and Banks, B. A.(1994). “Atomic oxygen undercutting of long duration exposure facility aluminized-kapton multilayer insulation.”J. Spacecraft and Rockets, 31(4), 656.
7.
Lapchinskii, V. F. (1992a). “Main principles of welding operations performance in space.”Proc., Space Welding, University of Alabama in Huntsville, Ala., 4–5.
8.
Lapchinskii, V. F. (1992). “Technology of permanent joining and cutting of structural materials.”Proc., Space Welding, University of Alabama in Huntsville, Ala., 6–9.
9.
Lho, T.-J.(1992). “A study on arc characteristics and its application to height control in plasma arc cutting.”Welding J., 71(8), 277.
10.
Michaels, K., and Hughes, G. (1993). “On-orbit NDE—a novel approach to tube weld inspection.”Proc., Space Operations Applications and Res. Symp., NASA, Houston, Tex.
11.
Octrovsky, O. E. (1992a). “Quality assurance of welded joints of pipe-lines for space-rocket complexes.”Proc., Space Welding, University of Alabama in Huntsville, Ala.
12.
Octrovsky, O. E. (1992b). “Selection of welding methods used during manufacturing of shell-type constructions in aerospace industry.”Proc., Space Welding, University of Alabama in Huntsville, Ala.
13.
Paton, B. E., Lapchinskii, V. F., Bulatsev, A. R., Balitskii, V. M., and Samilov, V. N. (1989). “Peculiarities of using welding processes for fabrication and repair of large-sized structures in space.”Proc., Welding under Extreme Conditions Int. Inst. of Welding, Pergamon Press, Helsinki, Finland, 181–188.
14.
Peery, J. P. (1950). Aircraft structures, McGraw-Hill, New York, N.Y.
15.
Rule, W. K., and Thomas, F. P. (1992). “Design of a welded joint for robotic, on-orbit assembly of space trusses.”NASA TM-108380, Marshall Space Flight Center, Ala.
16.
Russell, C., Poorman, R., Jones, C., Nunes, A., and Hoffman, D. (1991). “Considerations of metal joining processes for space fabrication, construction, and repair.”Proc. 23rd Int. SAMPE Techn. Conf., SAMPE, Kiamesha Lake, N.Y.
17.
Watson, J. K., Dickinson, D. W., and Rokhlin, S. I. (1988). “Survey of Soviet space welding technology development.”Proc. Engrg. Constr. and Operations in Space: Space 88, ASCE, New York, N.Y., 820–831.
18.
Welding Handbook. (1984). Vol. 5, 7th Ed., American Welding Society, Miami, Fla.
19.
Welding Handbook. (1987). Vol. 1, 8th Ed., American Welding Society, Miami, Fla., 81–83.
20.
Young, W. C. (1989). Roark's formulas for stress and strain . McGraw-Hill, New York, N.Y., 530–532.
Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 8 • Issue 4 • October 1995
Pages: 165 - 174
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Oct 1, 1995
Published in print: Oct 1995
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.