船舶坞排维修作业平台门架强度设计计算
李雪，孙峥，顾明，赵尚
（镇江船艇学院，江苏 镇江 212003）
摘要：船舶坞排维修作业平台是一种用于船舶坞排维修作业的登高作业装置。门架是平台的关键部件之一，门架的强度是影响平台安全性的重要因素。滚轮施加给门架的作用力，就是门架承受的外载荷，内门架和外门架都可以简化为一端铰支、一端自由的悬臂梁，按照单根薄壁杆来计算。在垂直于门架的平面内，通过校核危险截面的弯曲强度，得到门架的强度满足设计要求。
关键词：船舶坞排；维修作业平台；门架
中图分类号：U672 文献标志码：A doi：10.3969/j.issn.1006-0316.2017.03.014
文章编号：1006－0316 (2017) 03－0052－03
Accounting Intensity for Ship Dock and Ship Slipway Maintenance Working Platform
LI Xue，SUN Zheng，GU Ming，ZHAO Shang
( Zhenjiang Watercraft College of PLA, Zhenjiang 212003, China )
Abstract：The platform is a kind of the climbing device, using for maintenance working on the ship dock and ship slipway occasion. The triple-stage masts mechanism is one of the important components, The strength of the portal frame is the important factor affecting the safety of the platform. The force exerted by the roller on the portal frame is the external load of the portal frame, The inner frame and the outer portal frame can both be simplified as the cantilever beam with one end hinged and the other end is free and can be calculated as the single thin walled bar.In the plane perpendicular to the portal frame, By checking the bending strength of dangerous section, The strength of the portal frame meets the design requirements.
Key words：ship dock and ship slipway；maintenance working platform；triple-stage masts mechanism
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收稿日期：2016－09－01
基金项目：中国人民解放军总装备部通用装备保障部下达2010年度通用装备保障科研项目（通装[2010]115号）
作者简介：李雪（1978－），男，辽宁鞍山人，硕士，讲师，主要研究方向为机械优化设计及可靠性分析。
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