Results 231 to 240 of about 162,243 (282)

To Thrust or Not to Thrust, That Is the Question

Systems Engineering
ABSTRACT A discussion during the INCOSE International Symposium 2025 revealed a persistent misunderstanding regarding functional allocation and encapsulation in hierarchical system models. In particular, this was illustrated by the question of whether thrust is produced by an airplane or by its engine.
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Thrust stand for low-thrust liquid pulsed rocket engines

Review of Scientific Instruments, 2010
A thrust stand is developed for measuring the pulsed thrust generated by low-thrust liquid pulsed rocket engines. It mainly consists of a thrust dynamometer, a base frame, a connecting frame, and a data acquisition and processing system. The thrust dynamometer assembled with shear mode piezoelectric quartz sensors is developed as the core component of ...
Qin, Xing, Jun, Zhang, Min, Qian, Zhen-yuan, Jia, Bao-yuan, Sun   +4 more
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Thrusts and thrust-associated mineralization in the Lachlan Orogen

Economic Geology, 1995
The Lachlan orogen is characterized by a thin-skinned deformational style, with major thrusts and strike- slip faults soling into detachments in the upper and middle crust. Thrusts are divided into three types: type 1 thrusts that formed in apparently unconstrained sediment packages such as Early Ordovician turbidites; type 2 thrusts formed during ...
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A microNewton thrust stand for average thrust measurement of pulsed microthruster

Review of Scientific Instruments, 2013
A torsional thrust stand has been developed for the study of the average thrust for microNewton pulsed thrusters. The main body of the thrust stand mainly consists of a torsional balance, a pair of flexural pivots, a capacitive displacement sensor, a calibration assembly, and an eddy current damper. The behavior of the stand was thoroughly studied. The
Wei-Jing, Zhou, Yan-Ji, Hong, Hao, Chang
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Variable Thrust Angle Constant Thrust Rendezvous

2015
In this paper, variable thrust angle (VTA) constant thrust rendezvous is studied. In particular, the rendezvous process is divided into in-plane motion and out-plane motion based on the relative motion dynamic model. For the in-plane motion, the calculation of thrust angle control lows is cast into a convex optimization problem by introducing a ...
Yongqiang Qi, Ding Lv
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Thermal effects and timing of thrusting in the Moine Thrust zone

Journal of the Geological Society, 1985
Illite crystallinity studies in the foreland to the Moine thrust belt show a widespread heating event which is interpreted as a thermal response to thrust sheet emplacement. Temperatures reached ~275°C approximately 24 Ma after the main thrusting events.
M. R. W. Johnson, S. P. Kelley, G. J. H. Oliver, D. A. Winter   +3 more
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Evaluation of fluidic thrust vectoring nozzle via thrust pitching angle and thrust pitching moment

Shock Waves, 2016
Shock vector control (SVC) in a converging–diverging nozzle with a rectangular cross-section is discussed as a fluidic thrust vectoring (FTV) method. The interaction between the primary nozzle flow and the secondary jet is examined using experiments and numerical simulations.
L. Li, M. Hirota, K. Ouchi, T. Saito
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Shaping low-thrust trajectories with thrust-handling feature

Advances in Space Research, 2018
Abstract Shape-based methods are becoming popular in low-thrust trajectory optimization due to their fast computation speeds. In existing shape-based methods constraints are treated at the acceleration level but not at the thrust level. These two constraint types are not equivalent since spacecraft mass decreases over time as fuel is expended.
Ehsan Taheri, Ilya Kolmanovsky, Ella Atkins   +2 more
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In-Flight Thrust Determination for Aircraft with Thrust Vectoring

2017
<div class="section abstract"> <div class="htmlview paragraph">The purpose of this document is to provide guidance on in-flight thrust determination of engines that are impacted by intentional or unintentional thrust vectoring. However, as indicated in the Foreword, the field of aircraft thrust vectoring is varied and complex.
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Time of Thrusting in Idaho-Wyoming Thrust Belt: DISCUSSION

AAPG Bulletin, 1966
Evidence presented by Armstrong and Oriel (ibid., v. 49, p. 1847-1866, 1965) for dating the Absaroka and Paris thrusts is not convincing, and perhaps they cannot be dated exactly. The age of the Prospect thrust is not doubted. The Evanston Formation, used in dating the Absaroka thrust as latest Cretaceous, has not been found directly overlying the ...
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