Results 181 to 190 of about 1,449 (242)

Mechanical power generation using Earth's ambient radiation. [PDF]

Sci Adv
Deppe TJ, Munday JN.
europepmc   +1 more source

Physical principles and mechanisms of cell migration. [PDF]

NPJ Biol Phys Mech
Alonso-Matilla R, Provenzano PP, Odde DJ.   +2 more
europepmc   +1 more source

Corrosion behavior of Fe amorphous/Al-12Si piston composites with core-shell structure. [PDF]

Sci Rep
Wang Y, Lin Z, Liu C, Zhao D, Li C, Wang Y.   +5 more
europepmc   +1 more source

Performance investigation of an active free-piston Stirling engine using artificial neural network and firefly optimization algorithm. [PDF]

Heliyon
Masoumi AP, Tavakolpour-Saleh AR, Bagherian V.   +2 more
europepmc   +1 more source

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Motion characteristic of a free piston linear engine

Applied Energy, 2010
A mathematical model of a free piston linear engine is established. The motion characteristics as well as the natural frequency map of the free piston are established. Then, its motion characteristics are successfully explained from the oscillation point.
Jin Xiao, Qingfeng Li, Zhen Huang
exaly   +2 more sources

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
openaire   +1 more source

Motion control of a hydraulic free-piston engine

2012 American Control Conference (ACC), 2012
Free-piston engine (FPE), as an alternative of the conventional internal combustion engine, has a high potential in terms of energy saving given its wide range of potential applications and high efficiency. One of the technical barriers that prevents the wide spread of this technology is the lack of precise piston motion control.
Ke Li, Ali Sadighi, Zongxuan Sun
openaire   +1 more source

Hydraulic free piston engine — Challenge for control

1999 European Control Conference (ECC), 1999
A hydraulic free piston engine, HFPE, combines a diesel engine and a hydraulic pump into one compact component. In practical view there is only one linearly moving part in the HFPE, the piston assembly, which contains combustion and hydraulic pistons and piston rod.
Researcher Seppo Tikkanen, Matti Vilenius   +1 more
openaire   +1 more source

Design of a Free-Piston Engine-Pump

SAE Technical Paper Series, 1992
<div class="htmlview paragraph">Off-highway mining and construction equipment typically converts all the power output of the engine to hydraulic power, with this power then used to perform the earth-moving operations, and also to propel the vehicle. This equipment presents significant opportunities for a new type of powerplant designed to deliver
Norman H. Beachley, Frank J. Fronczak
openaire   +1 more source

A review of free-piston linear engines

Applied Energy, 2016
Abstract Unlike conventional internal combustion engines, a free-piston linear engine has no a crankshaft, and thus the pistons move freely in the cylinder. This allows a free-piston linear engine to easily adjust the compression ratio and optimize the combustion process.
Nguyen Ba Hung, Ocktaeck Lim
openaire   +1 more source