Results 171 to 180 of about 34,331 (212)

Linear Dynamics of Free-Piston Stirling Engines

Proceedings of the Institution of Mechanical Engineers, Part A: Power and Process Engineering, 1985
The free-piston Stirling engine (FPSE) is a heat driven mechanical oscillator from which power can be extracted. Linear dynamics is applied here in order to obtain: a stability criterion, a means for determining the oscillation frequency, relative amplitudes of the dynamic components, effects of friction on starting and the locus of the roots of the ...
R W Redlich, D M Berchowitz
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Hopf Instabilities in Free Piston Stirling Engines

Journal of Computational and Nonlinear Dynamics, 2013
Free piston Stirling engines (FPSEs) are examples of closed cycle regenerative engines, which can be used to convert thermal energy into mechanical energy. These engines are multidegree-of-freedom dynamical systems, which are designed to operate in a periodic manner. Traditionally, for design purposes, linear models are used and the associated periodic
Farhan Choudhary, Balakumar Balachandran
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Dynamic Stability of Free Piston Stirling Engines

14th Biennial Conference on Mechanical Vibration and Noise: Nonlinear Vibrations, 1993
Abstract A Stirling engine develops work output from a thermal input. It is a quiet pollution free engine, which can use any heat source, including solar power. The piston-displacer mechanism is essentially a vibrating spring mass system and can be dynamically modelled, leading to a set of coupled nonlinear ordinary differential ...
Necati Ulusoy, Frances McCaughan
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Reflections on Free-Piston Stirling Engines, Part 2: Stable Operation

Journal of Propulsion and Power, 1998
Abstract: In this paper a new linearization technique of the dynamic balance equations of a free-piston Stirling machine is developed. It takes into account the non-linear thermo-fluid-dynamic terms inherent in the machine, while keeping the linearity of the differential dynamic equations.
DE MONTE, FILIPPO, BENVENUTO G.
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A Review of Free Piston Engine Concepts

SAE Technical Paper Series, 1994
<div class="htmlview paragraph">In free piston engines, the stroke of the piston is used directly to produce hydraulic, pneumatic or electric energy. This can be done with a single piston in one combustion chamber, or with more pistons in one or more combustion chambers.
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Axially Opposed Magnetization for Free Piston Stirling Engines

International Journal of Applied Electromagnetics and Mechanics, 2013
A renewed focus on Free Piston Stirling Engines (FPSE) for Green Solar based power generation provides a vehicle to explore linear alternator technologies for improved performance and efficiency. This paper evaluates Axially Opposed Magnetization (AOM) linear alternators and the potential advantages this technology provides mechanically and ...
Rogers, Uri, Clark, David, Jackson, Scott, Ferguson, Tammy, Harris, David   +4 more
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Hybrid simulation of a free piston engine

Proceedings of the April 26-28, 1966, Spring joint computer conference on XX - AFIPS '66 (Spring), 1966
The free piston engine principle is one which has intrigued mechanical engineers for decades. Indeed, the original gas engine of Otto and Langden employed a piston assembly which did not contain the now conventional connecting rod and camshaft arrangement and hence may be considered as an early implementation of the free piston principle.
R. E. Gagne, E. J. Wright
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Experimental Study on Hydraulic Free Piston Diesel Engine

SAE Technical Paper Series, 2010
<div class="section abstract"><div class="htmlview paragraph"> In this paper the experiments of hydraulic free piston diesel engine is described. The experimental data were obtained from measurement instruments on the free piston diesel engine that has been developed by Beijing Institute of Technology [ <span class="xref">1<
Zhao Zhenfeng, Ying Huang, Fujun Zhang, Changlu Zhao, Kai Han   +4 more
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Free Piston Engine Based Mobile Fluid Power Source

Volume 2: Mechatronics; Mechatronics and Controls in Advanced Manufacturing; Modeling and Control of Automotive Systems and Combustion Engines; Modeling and Validation; Motion and Vibration Control Applications; Multi-Agent and Networked Systems; Path Planning and Motion Control; Robot Manipulators; Sensors and Actuators; Tracking Control Systems; Uncertain Systems and Robustness; Unmanned, Ground and Surface Robotics; Vehicle Dynamic Controls; Vehicle Dynamics and Traffic Control, 2016
As a novel alternative of internal combustion engine (ICE), the free piston engine (FPE) eliminates the mechanical crankshaft and the associated constraints on its piston motion. Due to this extra degree of freedom and reduced inertia, the FPE is able to generate variable output power with higher efficiency and less emissions, while possessing a short ...
Keyan Liu, Chen Zhang, Zongxuan Sun
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Structural design of Stirling engine with free pistons

AIP Conference Proceedings, 2014
Stirling engine is a device that converts thermal energy to mechanical work, which is mostly used to drive a generator of electricity. Advantage of Stirling engine is that it works with closed-cycle, where working medium is regularly cooled and heated, which acts on the working piston. This engine can be made in three modifications - alpha, beta, gamma.
Jozef Matusov, Stanislav Gavlas, Milan Malcho   +2 more
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