Articles with "variable geometry" as a keyword



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Feedback passivity‐based control of discrete nonlinear systems with time‐delay for variable geometry truss manipulator

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Published in 2019 at "Asian Journal of Control"

DOI: 10.1002/asjc.2203

Abstract: In this paper, the feedback passivity‐based control of nonlinear discrete time‐delay systems for variable geometry truss manipulators is investigated. To determine an appropriate communication channel in the sense of feedback passivation, we first model the… read more here.

Keywords: variable geometry; time delay; geometry; passivity ... See more keywords
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Dynamics and control of variable geometry truss manipulator

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Published in 2017 at "Applied Mathematics and Mechanics"

DOI: 10.1007/s10483-017-2164-9

Abstract: Variable geometry truss manipulator (VGTM) has potential to work in the future space applications, of which a dynamic model is important to dynamic analysis and control of the system. In this paper, an approach is… read more here.

Keywords: geometry truss; geometry; truss; truss manipulator ... See more keywords
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Improvement of torque and power characteristics of V-type diesel engine applying new design of Variable geometry turbocharger (VGT)

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Published in 2017 at "Journal of Mechanical Science and Technology"

DOI: 10.1007/s12206-017-0950-2

Abstract: Based on the new design concept in VGT the commercial turbocharger with vaneless turbine volute and two gas inlet casings was converted to an adjustable one. Modification assumed the processing of turbine housing and installation… read more here.

Keywords: turbocharger; engine; new design; geometry ... See more keywords
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Volumetric Efficiency Optimization of Manifold with Variable Geometry Using Acoustic Vibration for Intake Manifold with Variable Geometry in Case of LPG-Enriched Hydrogen Engine

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Published in 2019 at "Arabian Journal for Science and Engineering"

DOI: 10.1007/s13369-018-3254-7

Abstract: A proper design of the engine intake system can provide the best engine performance. The modeling of inlet system is very important for the evaluation of the engine performance. It is known that the wave… read more here.

Keywords: variable geometry; manifold variable; geometry; engine ... See more keywords
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Multi-scale evaluation of an R290 variable geometry ejector

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Published in 2021 at "Applied Thermal Engineering"

DOI: 10.1016/j.applthermaleng.2021.116612

Abstract: Abstract Although representing a promising alternative to mechanical compressor driven systems, ejector refrigeration has not widely spread due to its limits due to the system operation's rigidity. Ejectors are fluid-dynamics controlled devices and because of… read more here.

Keywords: ejector; variable geometry; ratio; geometry ... See more keywords
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Numerical and experimental investigation of improving combustion performance of variable geometry dual-mode combustor

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Published in 2017 at "Aerospace Science and Technology"

DOI: 10.1016/j.ast.2017.02.002

Abstract: Abstract As part of our efforts to find ways and means to further improve the combustion performance of variable geometry dual-mode combustor, flow field characteristics and mechanisms of combustion performance losses, which included compression and… read more here.

Keywords: dual mode; combustion; geometry dual; geometry ... See more keywords
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Impact of variable geometry combustor on performance and emissions from miniature gas turbine engine

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Published in 2017 at "Journal of The Energy Institute"

DOI: 10.1016/j.joei.2016.01.004

Abstract: Abstract The scope of this study is the experimental and theoretical research into the developed concept of variable geometry combustion chamber for miniature gas turbine engine. The aims are to investigate the combustion performance and… read more here.

Keywords: performance emissions; combustion; geometry; combustion chamber ... See more keywords
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Experimental study on the aerodynamic performance of variable geometry low-pressure turbine adjustable guide vanes

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Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy"

DOI: 10.1177/09576509221141933

Abstract: An annular cascade testing rig of a variable-geometry low-pressure turbine with a large expansion angle was designed and built, combining a five-hole probe, a surface static pressure test system, and a PIV(Particle Image Velocimetry) measurement… read more here.

Keywords: variable geometry; adjustable device; geometry; pressure ... See more keywords
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Research on output performance of pneumatic turbine based on variable geometry technology

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Published in 2018 at "Advances in Mechanical Engineering"

DOI: 10.1177/1687814018774644

Abstract: In order to solve these problems, such as excessive fluid velocity, large differences in output for all turbine level and disorder of flow field, variable geometric method was put forward as an improved method for… read more here.

Keywords: turbine; geometry technology; output; geometry ... See more keywords
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Inverse kinematics of asymmetric octahedral variable geometry truss manipulator with obstacle avoidance through inexact interior point optimization

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Published in 2018 at "International Journal of Advanced Robotic Systems"

DOI: 10.1177/1729881418817182

Abstract: This article studies the inverse kinematics for asymmetric octahedral variable geometry truss manipulator with obstacle avoidance. The inverse kinematics problem is cast as a nonconvex optimization that having quadratic objective function subject to quadratic constraints.… read more here.

Keywords: inverse kinematics; kinematics; geometry; optimization ... See more keywords
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Adaptive Control of Variable Geometry Inlet–Configured Air-Breathing Hypersonic Vehicles

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Published in 2019 at "Journal of Spacecraft and Rockets"

DOI: 10.2514/1.a34257

Abstract: This paper studies the longitudinal fault-tolerant control problem for a class of variable geometry inlet–configured air-breathing hypersonic vehicles, whose inlet length varies dynamically to ensu... read more here.

Keywords: variable geometry; configured air; inlet; geometry ... See more keywords