TY JOUR TI Forced torsional vibration calculation improved accuracy by means of diesel engine harmonic torque excitation better determination KW torsional vibration KW marine diesel engines KW diesel engines dynamics KW harmonic analysis KW resonant amplitudes calculation KW torsional vibration measurement JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Lapin, Y.. AU Gribinichenko, M.. AU Portnova, O.. PY 2025 IS 2025 PB Astrakhan State Technical University