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August 3, 2026Mechatronics Electrical Power and Vehicular TechnologyOpen Access

Analytical optimization of displacer trajectory for ideal beta-type stirling engine cycles with sinusoidal piston motion

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Authors

RHRachman HakimBandung Institute of TechnologyTHToto HardiantoDepartment of FisheriesPSPriyono SutiknoUniversitas Pasundan

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Implication

Randomized trial optimizes displacer trajectory in beta-type Stirling engines, highlighting improved performance.

Key Points

  • This research aims to optimize the displacer trajectory for beta-type Stirling engines to enhance work output and maintain stable power extraction.
  • Developed a generalized displacer motion equation using Fourier series modeling.
  • Optimized the displacer trajectory to approximate the ideal Stirling cycle with sinusoidal piston motion.
  • Generalized optimized trajectory as a piecewise function for improved applicability across different engine geometries.
  • The optimized trajectory achieves 91.9% of the ideal Stirling-cycle work output.
  • Compared to traditional mechanisms, crank mechanism achieves 59.8%, Scotch yoke achieves 66%, and rhombic drive achieves 68.5%.
  • Maintains approximately 80-90% of ideal work output for varying compression ratios without re-optimization.

Cite This Study

Hakim et al. (2026) studied this question.

synapsesocial.com/papers/6a70406d75942ff7265e576dhttps://doi.org/10.55981/j.mev.2026.1486
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