TY JOUR TI Cost-effectiveness of ships torsional vibrations monitoring systems application KW marine propulsion systems KW torsional vibrations KW monitoring system KW technical diagnostics KW torsional vibration damper KW economic efficiency JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Pokusaev, M.. AU Gorbachev, M.. AU Gorbachev, A.. PY 2024 IS 2024 PB Astrakhan State Technical University