On the dynamic response of pressure transmission lines in the research of helium-charged free piston Stirling enginesThe signal distortion inherent to pressure transmission lines in free-piston Stirling engine research is discussed. Based on results from classical analysis, guidelines are formulated to describe the dynamic response properties of a volume-terminated transmission tube for applications involving the helium-charged free-piston Stirling engines. The underdamped flow regime is described, the primary resonance frequency is derived, and the pressure phase and amplitude distortion are discussed. The scope and limitation of the dynamic response analysis are considered.
Miller, Eric L. (Sverdrup Technology, Inc. Middleburg Heights, OH, United States)
Dudenhoefer, James E. (NASA Lewis Research Center Cleveland, OH, United States)