柴油机及轴系在运转过程中,由于气缸内气体压力和往复惯性力的不断变化,以及螺旋桨推力的不断变化,因而使轴系可能产生扭转振动,横向振动以及轴向振动。 轴向振动,国外从40年代开始研究。特别是近几年来,柴油机向更高功率和多缸机发展时,轴向振动问题已成为柴油机与船舶制造者必须考虑的重要问题了。如英格兰 During the operation of diesel engine and shaft system, the shaft system may produce torsional vibration, lateral vibration and axial vibration due to the constant changes of gas pressure and reciprocating inertia force in the cylinder and the constant change of propeller thrust. Axial vibration abroad from the 40’s began to study. Especially in recent years, the development of diesel engines to higher power and multi-cylinder machines, the axial vibration problem has become an important issue that diesel engine and ship manufacturers must consider. Such as England