Flight validation of a rotary-valved four-cylinder pulse detonation rocket

Ken Matsuoka, Tomohito Morozumi, Syunsuke Takagi, Jiro Kasahara, Akiko Matsuo, Ikkoh Funaki

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A rotary-valved four-cylinder pulse detonation rocket engine system, Todoroki II, was developed, in which two novel techniques, the use of an inflow-driven motor and an inverted oxidizer cylinder, were introduced. The total length of the system was 1910 mm; its total weight when filled with ethylene-nitrous-oxide propellant and helium purge gas was 32.5 kg; and the engine weight was 9.6 kg.In aground firing test withadurationof 1500 ms, a thrust-toengine-weight ratio of 2.7 was achieved. Thus, it was demonstrated that a multicylinder pulse detonation rocket engine system can be used as a practical thrust mechanism. Using a launch and recovery system, a flight-simulating test was conducted to evaluate the features and viability of the engine design. The launch and recovery system operated perfectly, and Todoroki II reached a height of about 9.7 m. The operation of the pulse detonation rocket engine under conditions simulating real vertical flight without constraint forces with a duration of about 1200ms and a thrust-to-engine-weight ratio of 2.5 was demonstrated. No serious impact of the vibration caused by the pulse detonation rocket engine operation or the rotation of the rotary valve on the flight was observed.

Original languageEnglish
Pages (from-to)383-391
Number of pages9
JournalJournal of Propulsion and Power
Volume32
Issue number2
DOIs
Publication statusPublished - 2016

Fingerprint

Pulse detonation engines
rocket engines
pulse detonation engines
Rocket engines
Detonation
Engine cylinders
Rockets
detonation
rockets
engine
flight
Engines
pulses
thrust-weight ratio
thrust
vertical flight
engines
test firing
recovery
engine design

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science
  • Fuel Technology
  • Mechanical Engineering

Cite this

Flight validation of a rotary-valved four-cylinder pulse detonation rocket. / Matsuoka, Ken; Morozumi, Tomohito; Takagi, Syunsuke; Kasahara, Jiro; Matsuo, Akiko; Funaki, Ikkoh.

In: Journal of Propulsion and Power, Vol. 32, No. 2, 2016, p. 383-391.

Research output: Contribution to journalArticle

Matsuoka, K, Morozumi, T, Takagi, S, Kasahara, J, Matsuo, A & Funaki, I 2016, 'Flight validation of a rotary-valved four-cylinder pulse detonation rocket', Journal of Propulsion and Power, vol. 32, no. 2, pp. 383-391. https://doi.org/10.2514/1.B35739
Matsuoka, Ken ; Morozumi, Tomohito ; Takagi, Syunsuke ; Kasahara, Jiro ; Matsuo, Akiko ; Funaki, Ikkoh. / Flight validation of a rotary-valved four-cylinder pulse detonation rocket. In: Journal of Propulsion and Power. 2016 ; Vol. 32, No. 2. pp. 383-391.
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