区别于以NASA SP-8007为代表的基于实验经验的传统缺陷敏感度评价方法,以施加径向扰动载荷的方式引入凹陷缺陷。 首先,使用数值分析单点凹陷缺陷幅度对轴压承载力的影响规律,确定加载载荷的幅度范围;再进行多点凹陷缺陷的缺陷敏感度分析;然后以加载载荷的幅值和加载位置的分布为设计变量进行实验设计抽样;最后基于枚举法、遗
Spilker, a veteran of the Voyager mission, has been working on Cassini for decades, yet you need only ask her about the composition of Saturn's great rings or the icy geysers erupting from Enceladus, and the sparkle of discovery lights up in her eyes. "We have literally rewritten the ...