Results 121 to 130 of about 52,081 (256)

Investigation of hydroxyl-terminated polybutadiene propellant breaking characteristics and mechanism impacted by submerged cavitation water jet

Defence Technology
A submerged cavitation water jet (SCWJ) is an effective method to recycle solid propellant from obsolete solid engines by the breaking method. Solid propellant’s breaking modes and mechanical process under SCWJ impact are unclear.
Wenjun Zhou, Meng Zhao, Bo Liu, Youzhi Ma, Youzhi Zhang, Xuanjun Wang   +5 more
doaj   +1 more source

Hydroxyl-terminated polybutadiene liner curing process monitoring using non-collinear ultrasonic wave mixing technique

AIP Advances
The Hydroxyl-Terminated Polybutadiene (HTPB) liner in solid rocket motors is a viscoelastic material formed through the polymerization and gelation of HTPB and toluene diisocyanate.
Dawei Wang, Yuxin Xie, Xinyi Gao
doaj   +1 more source

Refinements in the Design of the Ares V Cargo Launch Vehicle for NASA's, Exploration Strategy [PDF]

, 2008
NASA is developing a new launch vehicle fleet to fulfill the national goals of replacing the shuttle fleet, completing the International Space Station (ISS), and exploring the Moon on the way to eventual exploration of Mars and beyond.
Creech, Steve
core   +1 more source

Characteristics of HTPB/AP/AOT Solid Propellant

Journal of the Korean Society of Propulsion Engineers, 2018
Miri Kim, Jaesung Choi, Jeongeun Kim, Myungpyo Hong, Hyoungjin Lee   +4 more
openaire   +1 more source

Investigation of the agglomeration reduction mechanism of the aluminized HTPB propellant containing ferric perfluorooctanoate [Fe(PFO)₃]. [PDF]

RSC Adv, 2019
Zhen F, Zhou X, Zou M, Meng L, Yang R, Wang L, Huang F, Li J.   +7 more
europepmc   +1 more source

Development and Testing of a Green Monopropellant Ignition System [PDF]

This paper will detail the development and testing of a "green" monopropellant booster ignition system. The proposed booster ignition technology eliminates the need for a pre-heated catalyst bed, a high wattage power source, toxic pyrophoric ignition ...
Eilers, Shannon D., Judson, Michael I., Merkley, Daniel P., Taylor, Terry L., Whitmore, Stephen A.   +4 more
core   +1 more source

Executive Summary of Ares V: Lunar Capabilities Concept Review Through Phase A-Cycle 3 [PDF]

This Technical Memorandum (TM) was generated as an overall Ares V summary from the Lunar Capabilities Concept Review (LCCR) through Phase A-Cycle 3 (PA-C3) with the intent that it may be coupled with separately published appendices for a more detailed ...
Baggett, K. E., Feldman, S. M., Holladay, J. B.   +2 more
core   +1 more source

Mars Ascent Vehicle Hybrid Propulsion Configuration [PDF]

As part of a Mars Sample Return (MSR) campaign, two Mars Ascent Vehicle (MAV) configurations have been designed in parallel. Each ascent vehicle configuration has a different propulsion system which ultimately leads to two unique vehicle designs. As part
Schnell, Andrew, Yaghoubi, Darius
core   +1 more source

Nitrous Oxide/Paraffin Hybrid Rocket Engines [PDF]

Nitrous oxide/paraffin (N2OP) hybrid rocket engines have been invented as alternatives to other rocket engines especially those that burn granular, rubbery solid fuels consisting largely of hydroxyl- terminated polybutadiene (HTPB).
Snyder, Gary, Zubrin, Robert
core   +1 more source

Experimental Study on the Evolution of Mechanical Properties and Their Mechanisms in a HTPB Propellant Under Fatigue Loading. [PDF]

Polymers (Basel)
Feng F, Chen X, Xu J, Zeng Y, Huang W, Dong J.   +5 more
europepmc   +1 more source