【摘 要】
：
针对复合材料曲型加筋板，基于有限单元法，研究了其建模方法和自由振动。基于层合板理论，及Mindlin-Reissener板理论，对复合材料层合板进行建模；同时基于Timoshenko梁理论，对曲型加强筋进行建模。曲型加强筋可任意铺设在板上，而无需与板共节点。同时当筋的数量位置发生改变时，无需对板进行再次划分网格。
【机 构】
：
中国商用飞机有限责任公司北京民用飞机技术研究中心结构设计技术研究部,北京102211
【出 处】
：
第二届中国国际复合材料科技大会 (CCCM-2)
论文部分内容阅读
针对复合材料曲型加筋板，基于有限单元法，研究了其建模方法和自由振动。基于层合板理论，及Mindlin-Reissener板理论，对复合材料层合板进行建模；同时基于Timoshenko梁理论，对曲型加强筋进行建模。曲型加强筋可任意铺设在板上，而无需与板共节点。同时当筋的数量位置发生改变时，无需对板进行再次划分网格。
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