﻿ 多功能船主吊机区域局部强度计算
 舰船科学技术  2017, Vol. 39 Issue (10): 61-65 PDF

Finite element analysis of area under main crane of multi-purpose vessel
LI Qiang, LIU Shao-yuan, LIU Yang, ZHANG Zhao, MENG Jia-hui
COTEC Offshore Engineering Services (Beijing), Beijing 100011, China
Abstract: Multi-purpose vessel is to meet the needs of the development of marine engineering, special engineering ships, to achieve a close combination of engineering economics and engineering practicality. Area under main crane is analyzed. It describes some useful techniques while building complex and irregular models, a area under main crane FE model is setup, a method of the area under main crane FE analysis is described, and it also discusses the force conversion while applying displacement and force to moles. The proposed method can be used for the design and strength analysis of the ship of area under main crane.
Key words: multi-purpose vessel     area under main crane     finite element     structural strength
0 引　言

1 多功能船主吊机区域局部结构有限元模型的建立 1.1 船体基本结构说明

1.2 模型范围

 图 1 有限元模型图 Fig. 1 The FE model
1.3 坐标系

1.4 单元

1.5 材料参数

2 载荷计算施加 2.1 载荷

2.2 边界条件

2.3 计算工况

 图 2 计算工况 Fig. 2 The calculation condition
3 强度评估 3.1 强度评估标准

3.2 屈服强度评估

 图 3 工况6—VON MISE力云图（CCS-36） Fig. 3 Von-mises stress plot for condition 6 (CCS-36)

 图 4 工况12—VON MISE力云图（CCS-A） Fig. 4 Von-mises stress plot for condition 12 (CCS-A)

 图 5 工况10—正应力云图（CCS-36） Fig. 5 Normal stress plot for condition 10 (CCS-36)

 图 6 工况12—正应力云图（CCS-A） Fig. 6 Normal stress plot for condition 12 (CCS-A)

 图 7 工况10—剪应力云图（CCS-36） Fig. 7 Shear stress plot for condition 10 (CCS-36)

 图 8 工况12—剪应力云图（CCS-A） Fig. 8 Shear stress plot for condition 12 (CCS-A)
3.3 屈曲强度评估

3.4 计算结果分析及强度评估

4 结　语

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