pterostigma [,terə'stigmə]

pterostigma的基本解释

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翅痣

与pterostigma相关的网络例句 [注：此内容来源于网络，仅供参考]

Firstly, the high resolution pictures of dragonfly wings from sample tests were studied thoroughly, and the unique feature of the reticulate vein distribution and the variation of the vein sizes and the grid shapes in different zones were figured out;then several computational models based on a dragonfly wing were established by using ANSYS, and beam 189 and shell 93 elements were used respectively in modeling of the veins and the membrane so as to ensure the compatibility between the veins and the membrane at a deformed state;these models subject to uniform loading cases were analyzed respectively so as to explore the unique performances of the wing structure, furthermore, through eigenvalue spectrum analyses of these models, the special role of the pterostigma in eliminating or suppressing the wing quivering effect was also evaluated.

首先，对实验中获取的高清晰度的蜻蜓翅膀数码图片进行了细致地分析，找出了翅膀网状翅脉结构中翅脉的分布规律与尺寸变化、网格形状的差异及不同形状网格的分布等独特的结构特征；再利用ANSYS建立蜻蜒翅膀网状翅脉结构模型，采用三节点等参数梁元beam189模拟翅脉和八节点等参数曲壳单元shell93模拟翅膜，以满足翅脉和翅膜间的变形协调性要求；通过非线性数值分析，探索了蜻蜓翅膀网状翅脉结构在均布荷载作用下所具有的独特的结构性能；通过模态分析，揭示了翅膀前缘靠近翼尖附近的翅痣在翅膀消震减振中所发挥的作用。

Dragonfly wing;reticulate vein;pterostigma;bionic structure;new-style structural system

论文导师童根树，论文学位硕士，论文专业结构工程

与pterostigma相关的网络解释 [注：此内容来源于网络，仅供参考]

pterostigma：翅痣

各翅均有一翅痣(pterostigma). 尾须小,只一节. 白天活动,飞行敏捷而有力,可持续飞行颇长时间,并能在飞行中捕捉其他昆虫为食. 若虫水生,其下唇特化成一捕食器官,称为面罩(mask),用来捕食小型甲壳动物和其他昆虫. 不完全变态.