渔船在风浪中如何减少纵摇和淹埋

A Study on Reduction of Pitching and Submergence of Fishing Boat in Waves

渔船在风浪中通常力求顶浪或顺浪航行,即平行或接近平行波向航行。此时,风浪对船的主要影响是纵摇和淹埋,打空车。本文着重探讨渔船在风浪中如何减少纵摇和淹埋,打空车的问题。文中首先阐明怎样避离纵摇的共振区域,在此基础上,根据我国的海洋和现有渔船情况出发,进而考虑如何根据船长波长比选择更佳航向,然后着重阐明渔船的摇摆和波浪起伏的相位关系。并结合船长与波长比导出在什么情况下纵摇和淹没严重,何时较为轻缓的结论,最后提出渔船在平行或接近平行波向航行时的几点建议。

The fishing boat sailin in waves usually navigates againstthe wave or with the wave, viz paralleling with the waveor approximately paralleling with the wave. In this case, Theessential influences of wave are pitching, submergence andracing. The present article emphatically discusses the problem:while the fishing boat sails in waves how to reduce the pi-ching, submergence and racing. The bases of our discussion is the condition of the oceanand the present fishing boat of China. First, we will explainhow to avoid the resonance area of pitching. Second, how toselect the best course according to the ratio of boat length andwavelength. Third, we will consider emphatically the relation between pitching and the wave phase. Fourth, according to theratio of boat length and wave length we will find out theresults of pitching and submergence in waves. Finally, sugges-tions about parallel and appoximately parallel navigation offishing boat with waves will be made.