利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

3 条记录 (耗时 0.012 秒)

    APPARATUS AND METHOD FOR CONTROLLING THE SHAPE OF STRUCTURES
    3.
    发明公开
    APPARATUS AND METHOD FOR CONTROLLING THE SHAPE OF STRUCTURES 失效
    设备和方法的变革对于结构形式

    公开(公告)号：EP0696982A4

    公开(公告)日：1996-07-17

    申请号：EP94916041

    申请日：1994-05-05

    申请人： GRUMMAN AEROSPACE CORP ,  AUSTIN FRED ,  ROSSI MICHAEL J ,  KNOWLES GARETH J

    发明人： AUSTIN FRED ,  ROSSI MICHAEL J ,  KNOWLES GARETH J

    IPC分类号： B64C3/38 ,  B64C3/48 ,  G06F19/00 ,  B64C3/52

    CPC分类号： B64C3/48 ,  Y02T50/145

    摘要： An apparatus and method control the shape of a structure with one or more surfaces and internal actuators. A plurality of translational actuators are capable of extending and contracting. The structure can have any number of controllable surfaces, including one. The shapes of the surfaces are controlled by computing the actuator strokes or loads required for achieving specified surface deflections. There are two methods for accomplishing this control. In the actuator stroke-control method, the surface deflections, or deflection errors for closed-loop control, are multiplied by a stroke-control gain matrix which is a function of the properties of the structure with the actuators absent. In the actuator load-control method, the surface deflections, or deflection errors for closed-loop control, are multiplied by a load-control gain matrix which is a function of the properties of the structure with the actuators absent. The control gain matrices minimize the surface shape errors. Ratios of stresses to allowable values are continuously monitored throughout the structure and corrective action is taken to prevent an overstressed condition.