both the ship hull vibration and the local vibration of ship stern structures should be taken into consideration in the vibration problem of ship stern structures.
船舶尾部结构的振动问题应同时从船体总振动和尾部结构的局部振动两方面来考虑。
if the courses of vibration are considered thoughtfully during ship design stage, many problems of ship hull vibration may be avoided or reduced.