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This study numerically analyzes the flow-induced noise of a hermetic reciprocating compressor (HRC) using fluid-structure interaction (FSI) analysis, acoustic excitation source modeling, and acoustic-structure interaction (ASI). Acoustic modeling, which calculates acoustic excitation source strength from pressure pulsation of the refrigerant caused by the behavior of the piston and valve, is presented for predicting flow-induced noise. Pressure pulsation is obtained by performing FSI analysis of the internal flow and valve behavior of the compressor. Based on this, acoustic excitation source strength is calculated by applying acoustic modeling such as planar wave conditions. Using the calculated acoustic excitation source, ASI analysis between the refrigerant and the shell housing is performed to predict the radiated flow-induced noise of the hermetic compressor. The numerical noise analysis results showed good agreement with experimental results, especially with high accuracy in the frequency band of cavity resonance. This study reveals that the primary cause of flow-induced noise of the HRC is acoustic waves generated by the structural movement of the piston and valve, providing important implications for future compressor design improvements. [ABSTRACT FROM AUTHOR]