导管架平台结构完整性的柔度监测

Generalized flexibility monitoring of offshore jacket platform

利用导管架平台模型在波浪中频域动响应，构造几种广义柔度，将所提出的广义柔度法应用于平台模型的完整性检测，证明它与传统的柔度法有很好的一致性，便于实际应用．

A new concept of generalized flexibility is introduced based on the platform response spectrum for identifying the platform damaged in different positions and changed in deck mass as well as the foundation relaxation. The tendency of the change of the generalized flexibility is shown in three cases. A series of valuable conclusions are obtained. It provides an important basis in order to develop the structural vibration monitoring technology of offshore jacket platforms.