空气管及通风管的应力分析

Stress Analysis of Air Pipes and Venting Pipes

为了抵御上浪力的破坏作用,国际船级社协会(IACS)对位于距首部四分之一区域内的空气管、通风管及其关闭装置作出强度要求。以高度1 000 mm的DN350 B型菌形通风筒、DN250 CA型鹅颈式通风筒、DN200 ES型空气管头及其下方管段为例,通过分析支撑肘板顶部和趾部处的弯曲应力情况,提出一种满足该强度要求的加强方法,以提高该区域内通风透气装置的可靠性。

To resist green sea loads, International Association of Classification Societies （IACS） put forward strength requirements for the air pipes, venting pipes and their closing devices located within the forward quarter length. Taking DN350 B-type mushroom ventilator,DN250 CA-type （with a height of 1 000 mm） and their pipes below as an example, gooseneck ventilator and DN200-ES air pipe head through toe of brackets,a strengthen method fully satisfied with the strength reliability of venting devices in the area. analyzing bending stresses at the top and the requirement was proposed to improve the