摘要：AbstractAdaptivity in civil engineering structures is realized by the integration of sensors, actuators and a control scheme. The large dimensions of such structures cause high installation effort for cabling and challenges in control through transmission delays. Furthermore, modern lightweight structures typically include elements that bear tension forces only, leading to a nonlinear model for control design. In this contribution, we propose a decentralized control scheme for civil engineering structures which can handle nonlinearities through tension-only elements in control design. A large structure is subdivided into local substructures, incorporating nonlinear elements each. The Craig-Bampton model order reduction is applied to the substructures, which can only be conducted by intelligent separation of degrees of freedom for inner and boundary nodes, where degrees of freedom influenced by tension-only elements are set as boundary nodes. Linearizing input transformations are designed by means of local substructures, forcing the nonlinear model to the dynamics of a local linear target system. Linear feedback controllers can be designed based on the linear target system. These decentralized linearizing input transformations and feedback controllers are applied to the combined nonlinear structure. This approach is illustrated numerically on an adaptive high-rise structure.
关键词：Keywordsadaptive structurestension-only-elementsdecentralized control
