An Assessment of Joint Rigidity with Ultrasonic Wave Energy
An Assessment of Joint Rigidity with Ultrasonic Wave Energy
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DOI：
10.1007/s10921-011-0098-4
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发表时间：
2011-09-01
影响因子：
2.8
通讯作者：
Maji, Arup K.
中科院分区：
文献类型：
--
作者：
Montoya, Angela C.;Maji, Arup K.
提出了一种模块化卫星设计，以便能够快速部署卫星。该设计将允许在需要新卫星之前很久就制造和测试具有共同功能的面板。一旦卫星组装完成，在认为飞行器具有飞行价值之前，需要对面板之间的连接进行质量评估。本文报告了一项研究的可行性，使用透射波能量的节点刚度评估。将介绍实验装置和方法。实验是在两块铝板之间的接头上进行的，该接头由干铝-铝连接组成，类似于可用作模块化卫星设计的一部分的可能的板-板连接。波能传输和力学评估的联合刚度之间进行了比较。结果表明，节点刚度和能量传递之间具有良好的相关性，证明了利用波能传递振幅检测金属-金属干连接的可行性。
A modular satellite design has been proposed in order to enable rapid deployment of satellites. The design would allow panels with common functions to be manufactured and tested long before a new satellite is needed. Once the satellite is assembled, a quality assessment of the connections between panels would need to be performed before the craft is deemed flight worthy. This paper reports on an investigation on the feasibility of using transmitted wave energy for joint rigidity assessment. The experimental setup and methods will be presented. Experiments were conducted on a joint between two aluminum plates consisting of a dry aluminum-to-aluminum connection, similar to possible panel-to-panel connections that could be used as part of a modular satellite design. Comparisons were made between wave energy transmission and a mechanical assessment of the joint rigidity. Results show excellent correlation between joint rigidity and energy transmission, demonstrating the feasibility of the using wave energy transmission amplitudes to inspect metal-to-metal dry connections.