The dynamics associated with the jettisoning of heat shield fairings from the parent launch vehicle is investigated. The analysis considers a zip-cord based mechanism employed to jettison the fairings from the accelerating on-going stage. A scheme for characterization of the zip-cord system is described. The geometry of collision is analysed for a known, precomputed structural response. The no- collision domain is constructed in flexibility parameter space for an arbitrarily assumed impulse level. Alternatively, the minimum impulse required for a collision-free separation is also computed as a function of design parameters. Finally, the analysis enables generation of the upper limits on payload size as well as that of the external mountings for a clean separation. This methodology has led to the successful separation of shield heat fairings for the two developmental flights of the Indian launcher Polar Satellite Launch Vehicle (PSLV).
HatakeyamaL FA parametric investigation of a proposed javelin split-fairing system. In Proceedings of the AIAA Conference onSounding Rocket Vehicle Technology Specialists, Williamsburg, Virginia, February 1967, pp. 430–442.
RobinsM JGround test program for new Atlas payload fairings. InResearch in Structures, Structural Dynamics and Materials, Long Beach, California, April 1990, NASA CP-3064.
4.
YashunagaYFukushimaYNakamuraTFujitaTSeparation jettison test of Japanese H-II rocket satellite fairing. AIAA-90–0720, 1990.
5.
JaegerR WThe Ariane fairing and its separation systems. ESA Bulletin 15, August 1978.
ChubbWThe collision boundary between the two separating stages of the SA-4 saturn vehicles. NASA TND-598, 1961.
8.
DworkMConing effects caused by separation of spin stabilized stagesAIAA Journal, 1963, 1 (11), 2639–2640.
9.
WilkeR OComments on coning effects caused by separation of spin stabilized stagesAIAA Journal, 1964, 2 (7), 1358.
10.
WaterfallA PA theoretical study of the multispring stage separation system of the black arrow satellite launcher. RAE TR 68206, 1968.
11.
LongrenD RStage separation dynamics of spin stabilized rocketsJ. Spacecraft and Rockets, 1970, 7 (4), 434–439.
12.
SubramanyamJ D ASeparation dynamics analysis for a multistage rocket. In Proceedings of the International Symposium onSpace Science and Technology (Ed. Shigeo Kobayashi), 1973, pp. 383–390 (AGNE Publishing, Tokyo, Japan).
13.
SundaramurthyHNarayanK YSuryanarayanaG KLochanRNairSVaramballyB SWind tunnel investigation of strap-on booster separation characteristics of a launch vehicleJ. Aeronautical Society of India, 1986, 38 (4), 215–221.
14.
PrahladT SA profile of aerodynamic research in VSSC with application to satellite launch vehiclesSadhana, 1988, 12 (Parts 1 and 2), 125–182.
BertramAVillalazPVerification of the mathematical model of the Ariane 4 payload fairing by means of extended modal survey testing. In Proceedings of the Conference onSpacecraft Structures, CNES, Toulouse, December 1985, ESA SP-238.
18.
ButcherJ RThe separation test in vacuum of Ariane 4 payload fairing. In Proceedings of the Fifteenth Space Simulation Conference onSupport the Highway to Space through Testing, November 1988, NASA CP-3015.
19.
ElayathuM. N.G.Abdul SalamE MElastic response of a launch vehicle-payload-fairing to separation shock. In Proceedings of theFinite Elements in Computational Mechanics FEICOM-85 (Ed. Tarun Kant), 1985, pp. 807–814 (Pergamon Press, Oxford).
20.
Structural Engineering Group.FEAST: Theoretical Manual, 1985 (Vikram Sarabhai Space Centre, Trivandrum, India).
NairSFrancisE JPreliminary assessment on PSLV heat shield 01 separation test results. VSSC-ASMG-TR-038, 1991.
23.
Narayanan PottiK VRamachandranNPanickerP R MPSLV heat shield functional test 01: results part III—compartmental pressure drop and its impact. VSSCASMG-TR-050, 1991.
24.
25.
PanickerP R MRamachandranNNarayanan PottiK VPSLV heat shield functional qualification test HS02 results. VSSC-ASMG-TR-58–2, 1992.
26.
LochanRPost test analysis of PSLV heat shield separation test: HS02. VSSC-ARD-PSLV-PN-249, 1993.
27.
ElayathuM. N.G.NeethaRPost test analysis of PSLV heat shield jettisoning test. VSSC-SEG-SDD-TN-124, 1992.
28.
LochanRFlight prediction of PSLV heat shield separation. VSSC-ARD-PSLV-PN-263, 1993.
