Results 41 to 50 of about 1,081 (242)
Aerospace, 2022 Analytical target cascading (ATC) is a method for coordinating hierarchical system design optimization with a decomposition-based framework. Since a launch vehicle (LV) is usually powered by two or more stages of rocket motors, the overall design of the ...
Pengcheng Wang +4 more
doaj +1 more source
A LABSCALE HYBRID ROCKET MOTOR IGNITION SYSTEM [PDF]
The International Conference on Applied Mechanics and Mechanical Engineering, 2012 ABSTRACTThe hybrid propulsion has the superiority of safety (Non-explosive), simplicity (highreliability), low environmental pollution and available technology over traditional solidand liquid propulsion, all these benefits have a tendency to low cost and laboratorywork.
A. Makled +3 more
openaire +1 more source
Technology Development Outsourcing: When to Join Forces With a Rival?
Journal of Operations Management, EarlyView.ABSTRACT Knowing the challenges of collaborating with a competitor in developing new technologies, firms sometimes still choose a competitor instead of a noncompeting technology provider. To explore why, this study adopts an inter‐organizational trust view to explain the formation of a technology development outsourcing relationship.
Tingting Yan, Hubert Pun, Dina Ribbink
wiley +1 more source
Development of a Hybrid Sounding Rocket Motor [PDF]
, 2012 ii This work describes the development of a hybrid rocket propulsion system for a reusable sounding rocket, as part of the first phase of the UKZN Phoenix Hybrid Sounding Rocket Programme.
Bernard, Geneviève., Bernard Geneviève
core
The Three-Dimensional Transient Simulation of Cross-Shaped Grains in Hybrid Rocket Motors
AerospaceThe process of spacecraft entry, deceleration, landing, and ascent requires high specific impulse, high reliability, and high-precision thrust adjustments for the power system.
Xiangyu Meng +5 more
doaj +1 more source
Modified Regression Rate Formula of PMMA Combustion by a Single Plane Impinging Jet
International Journal of Aerospace Engineering, 2017 A modified regression rate formula for the uppermost stage of CAMUI-type hybrid rocket motor is proposed in this study. Assuming a quasi-steady, one-dimensional, an energy balance against a control volume near the fuel surface is considered. Accordingly,
Tsuneyoshi Matsuoka +3 more
doaj +1 more source
Comprehensive Data Reduction for N2O/HDPE Hybrid Rocket Motor Performance Evaluation
Aerospace, 2019 Static firing tests of a hybrid rocket motor using liquid nitrous oxide (N2O) as the oxidizer and high-density polyethylene (HPDE) as the fuel are analyzed using a novel approach to data reduction that allows histories for fuel mass consumption, nozzle ...
Landon Kamps +3 more
doaj +1 more source
Design of a Mars Ascent Vehicle Using HyImpulse’s Hybrid Propulsion
Aerospace, 2023 The recent growth in maturity of paraffin-based hybrid propulsion systems reassesses the possibility to design an alternative Mars Ascent Vehicle (MAV) propelled by a European hybrid motor.
Maël Renault, Vaios Lappas
doaj +1 more source
First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique
Mass Spectrometry Reviews, EarlyView.ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley +1 more source
Design Optimization and Parameter Analysis of a Hybrid Rocket Motor-Powered Small LEO Launch Vehicle
International Journal of Aerospace Engineering, 2021 In this paper, the effects of different grain shapes of a hybrid rocket motor (HRM) and different payload mass/orbit heights on the design of small launch vehicles (SLVs) are systematically discussed.
Hao Zhu +5 more
doaj +1 more source