下水式升船机船厢底缘形式研究

Study on bottom type of chamber for submerge ship chamber ship lift

通过比尺为1∶20的船厢出入水过程概化物理模型,对下水式升船机船厢主体底缘形式进行系统研究,探讨不同底缘形式的船厢对出入水过程船厢池水面波动、吸附力、拍击力及附加水动力荷载的影响。研究表明:船厢底缘角度的增大可有效降低船厢出水吸附力与入水拍击力,同时考虑到船厢底缘角度的增大会引起船厢质量的增加,提出船厢底缘较优角度为4°。

The paper builds a physical generalized model of launching type ship lift with scale of 1：20 to study bottom type of ship chamber systematically. The effect of different bottom types on water level fluctuation in chamber tank, adsorption force, slamming force and additional hydraulic load during the ship chamber in and out of water is discussed. The result shows that increasing the angle of sphenoid type at bottom of ship chamber can decrease adsorption force and slamming force effectively. Because the increase of angle of sphenoid increases the mass of the ship chamber, the recommended angle is 4°.