Gap control of fan blades in gas turbine engine

A gap control system with an electromagnetic actuator is disclosed. An example electromagnetically actuated clearance control system for a gas turbine engine includes an electromagnetic coil coupled to a first end of a panel, the electromagnetic coil generating a magnetic field in response to connection of a power source; a ferromagnetic sheet coupled to a second end of the panel, the ferromagnetic sheet being pulled radially inward toward the electromagnetic coil when a magnetic field is generated, a first end of the ferromagnetic sheet being coupled to a first compression spring and a second end of the ferromagnetic sheet being coupled to a second compression spring, the first compression spring and the second compression spring compress in response to the ferromagnetic sheet being pulled radially inward. 公开了具有电磁致动器的间隙控制系统。用于燃气涡轮发动机的示例电磁致动间隙控制系统包括电磁线圈，该电磁线圈联接到面板的第一端，电磁线圈响应于电源的连接而产生磁场；铁磁片，该铁磁片联接到面板的第二端，当产生磁场时，铁磁片朝向电磁线圈被径向向内拉动，铁磁片的第一端联接到第一压缩弹簧，并且铁磁片的第二端联接到第二压缩弹簧，第一压缩弹簧和第二压缩弹簧响应于铁磁片被径向向内拉动而压缩。