基于有限元分析的海上支持平台遮蔽甲板吊重能力评估
|
摘要
针对海上平台遮蔽甲板,对横梁进行了全三维实体的有限元分析,计算了不同起吊方式下的最大起吊能力。在单点起吊方式下,按起吊能力对横梁划分了三个区域;在不考虑起吊位置的情况下单点起吊最大载荷为26 kN。计算了常用二点起吊和多点起吊的最大载荷,二点起吊的最大载荷能力可达到50 kN,多点起吊的最大载荷能力可达到60 kN。二点起吊或多点起吊时,组合起吊点的间距越大,载荷能力有提高的趋势。最大起吊载荷的评估结果对安全施工具有实际指导意义。
The 3D solid finite element analysis of offshore support platform shelter deck beam is carried out, and the maximum lifting capacity is calculated under different lifting mode. In single point lifting mode, the beam is divided into three regions according to the lifting capacity. The maximum load of single point lifting is 26 kN, without considering lifting position. The maximum load of commonly used two point lifting and multi-point lifting is calculated in the same way. The maximum lifting load can reach 50 kN under two point lifting mode, and that can reach 60 kN under multi-point lifting mode. There is an increasing trend of load capacity during the increasing of distance of combination lifting points under two point lifting or multi-point lifting mode. The evaluation results of maximum lifting loads have practical significance for platform construction safety.
The 3D solid finite element analysis of offshore support platform shelter deck beam is carried out, and the maximum lifting capacity is calculated under different lifting mode. In single point lifting mode, the beam is divided into three regions according to the lifting capacity. The maximum load of single point lifting is 26 kN, without considering lifting position. The maximum load of commonly used two point lifting and multi-point lifting is calculated in the same way. The maximum lifting load can reach 50 kN under two point lifting mode, and that can reach 60 kN under multi-point lifting mode. There is an increasing trend of load capacity during the increasing of distance of combination lifting points under two point lifting or multi-point lifting mode. The evaluation results of maximum lifting loads have practical significance for platform construction safety.
引文
[1]冯加果,刘小燕,谢彬,等.基于ANSYS的海洋平台吊点结构强度分析[J].石油矿场机械,2016,45(5):32-37.
[2]杜群贵,杜业威.龙门架钢结构有限元分析及其技术处理[J].起重运输机械,2006(1):10-12.
[3]唐季校.700t单门式桅杆横梁吊装设备有限元计算[J].起重运输机械,2000(5):12-14.
[4]高广军,田红旗,姚松.有限元三维实体单元与壳单元的组合建模问题研究[J].中国铁道科学,2002,23(3):52-54.
[5]王鑫,麦云飞.有限元分析中单元类型的选择[J].机械研究与运用,2009,22(6):43-45.
[6]常平江,李霁,秦叔经.单元选择对有限元分析结果的影响[J].化工设备与管道,2015,52(3):7-13.
[7]谢贻权,何福保.弹性和塑性力学中的有限单元法[M].北京:机械工业出版社,1981.
[2]杜群贵,杜业威.龙门架钢结构有限元分析及其技术处理[J].起重运输机械,2006(1):10-12.
[3]唐季校.700t单门式桅杆横梁吊装设备有限元计算[J].起重运输机械,2000(5):12-14.
[4]高广军,田红旗,姚松.有限元三维实体单元与壳单元的组合建模问题研究[J].中国铁道科学,2002,23(3):52-54.
[5]王鑫,麦云飞.有限元分析中单元类型的选择[J].机械研究与运用,2009,22(6):43-45.
[6]常平江,李霁,秦叔经.单元选择对有限元分析结果的影响[J].化工设备与管道,2015,52(3):7-13.
[7]谢贻权,何福保.弹性和塑性力学中的有限单元法[M].北京:机械工业出版社,1981.