Dynamic Analysis of Free Piston Stirling Engines by Modal Transformation Method

1986 ◽  
Author(s):  
Maurizio Carlini ◽  
Tomasz Kucharski
Keyword(s):  
Dynamic Analysis ◽  
Transformation Method ◽  
Free Piston ◽  
Stirling Engines

scholarly journals Linear Dynamic Analysis of Free-Piston Stirling Engines on Operable Charge Pressure and Working Frequency along with Experimental Verifications

2021 ◽  
Vol 11 (11) ◽  
pp. 5205
Author(s):  
Dong-Jun Kim ◽  
Kyuho Sim
Keyword(s):  
Dynamic Analysis ◽  
Phase Angle ◽  
Dynamic Models ◽  
Root Locus ◽  
Free Piston ◽  
Linear Dynamic ◽  
Vibration Model ◽  
Stirling Engines ◽  
Charge Pressure ◽  
Working Frequency

This paper presents a linear dynamic analysis on operable charge pressure and working frequency of free-piston Stirling engines (FPSE) along with experimental verifications. The equations of motion of the FPSE are formulated as a 2-degree-of-freedom (DOF) vibration system of the power piston (PP) and displacer piston (DP), based on the state equation of ideal gas and the isothermal Stirling cycle model. The dynamic models of FPSE we considered are the 1-DOF simple vibration model of each piston and the 2-DOF root locus model of coupled pistons. We developed a test FPSE for verification of the dynamic models and conducted a series of experiments to measure the dynamic behaviors of PP and DP under varying charge pressures for various masses and stiffnesses of the PP. As a result, both prediction models showed good agreements with experimental results. The 1-DOF vibration model was found to be simple and effective for predicting the operating frequency and charge pressure of FPSE. The root locus method showed reasonable predictions with an operation criterion of the PP–DP phase angle of 90°. In addition, the FPSE was confirmed to operate in resonant oscillations when the DP–PP phase angle is 90°, based on analysis of the force vector diagram of the two pistons.

Free piston Stirling engines: A review

2019 ◽  
Vol 44 (7) ◽  
pp. 5039-5070 ◽  
Author(s):  
Shahryar Zare ◽  
AliReza Tavakolpour‐Saleh
Keyword(s):  
Free Piston ◽  
Stirling Engines

scholarly journals A Dynamic Analysis of Free Piston Vuilleumier Cycle Heat Pumps.

2000 ◽  
Vol 43 (3) ◽  
pp. 518-525 ◽  
Author(s):  
Junji MATSUE ◽  
Takashi NAKAZATO ◽  
Hiroyuki SHIRAI
Keyword(s):  
Dynamic Analysis ◽  
Heat Pumps ◽  
Free Piston

Control-based design of free-piston stirling engines

2008 ◽  
Author(s):  
Jose A. Riofrio ◽  
Khalid Al-Dakkan ◽  
Mark E. Hofacker ◽  
Eric J. Barth
Keyword(s):  
Free Piston ◽  
Stirling Engines

scholarly journals Dynamic Analysis of Free-Piston Vuilleumier-Cycle Heat Pumps.

1994 ◽  
Vol 60 (577) ◽  
pp. 3070-3075
Author(s):  
Junji Matsue ◽  
Hiroyuki Shirai ◽  
Masahisa Ohtake ◽  
Yosiaki Kurosawa
Keyword(s):  
Dynamic Analysis ◽  
Heat Pumps ◽  
Free Piston
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