风载条件下光电桅杆有限元分析  

Finite Element Analysis of Opto-Electronic Mast under Condition of Wend

作　　者：刘长顺[1,2] 陈兆兵[2] 郭劲[2] 王兵[2] 

机构地区：[1]中国科学院大学,北京100049 [2]中国科学院长春光学精密机械与物理研究所,长春130033

出　　处：《火力与指挥控制》2013年第10期46-50,共5页Fire Control & Command Control

摘　　要：针对车载型光电桅杆工作时受到的风载影响问题进行了研究,以有限元分析的手段对某型光电桅杆在八级风和十级风条件下的静力倾摆和动力模态进行了分析。2种条件下该光电桅杆的最大变形位置均出现在桅杆顶端,其最大变形量分别为9.02 mm和11.9 mm,即桅杆在两档风力下的最大侧摆角分别为1.5 mrad和1.9 mrad,满足桅杆倾摆要求。进行模态分析后前三阶的振型频率分别是123.62 Hz、124.53 Hz、603.53 Hz,可以认为基本避开了载车发动机60 Hz的共振频率。The wend influence of the vehicle opto-eleetronic mast is researched. The statics laying bare and dynamical mode of the opto-electronic mast under eight and ten class wend condition are analyzed. The biggest distortion position of the mast under the two conditions appears the top of the mast. And the biggest distortion mete partings are 0.902 mm and 1.19 ram. The biggest side angles under the two conditions are 0.15mrad and 0.19mrad. And it can complete the moving request of the mast. After the mode analysis the former three rank mode frequencies are 123.62 Hz, 124.53 Hz,603.53 Hz. It can be considered that the mode keeping away from the vehicle motor 60 HZ resonating frequency.

关 键 词：光电桅杆 风力载荷 有限元分析 

分 类 号：TH38[机械工程—机械制造及自动化]