Suspension structure of control surface of large aircraft

Abstract

The invention provides a suspension structure of a control surface of a large aircraft. The suspension structure of the control surface of the large aircraft is comprised of a hinged line load bearingstructure (1) and an aerodynamic load bearing structure (2). Hinged line load is independently borne by the hinged line load bearing structure (1), wherein the hinged line load bearing structure (1)is comprised of box-shaped beams (11), bolt shafts (13), and an axial joint (12). The box-shaped beams (11) are arranged in a stabilizing plane (4), the bolt shafts (13) are arranged in the box-shapedbeams (11), and the axial joint (12) is arranged in the control surface (3). Aerodynamic load is independently borne by the aerodynamic load bearing structure (2), wherein the aerodynamic load bearing structure (2) is comprised of a suspension support arm (21) and a suspension joint (22). The suspension support arm (21) is arranged in the stabilizing plane (4), and the suspension joint (22) is arranged in the control surface (3). The hinged line load bearing structure (1) is arranged on the root portion of the control surface and the lower portion of the stabilizing plane, so that a large opening in the front of the control surface is avoided, and the aerodynamic efficiency of the control surface is enhanced; the box-shaped beams (11) are directly connected with butt joints on a tail wing, the force transmission is simple and direct, and the weight is light; and through the combination of a bushing and a bearing and a clearance which is arranged reasonably, different degrees of freedom are released, and the work of each structure is non-interference and reliable.

Description

technical field [0001] The invention relates to an aircraft suspension structure, in particular to a large-scale aircraft rudder surface suspension structure. Background technique [0002] In addition to bearing the aerodynamic load of the rudder surface, the large aircraft rudder surface suspension structure must also be able to withstand the 36Wg inertial load of the rudder surface along the hinge line. Most of the existing large-scale aircraft rudder surface hinge-line load-bearing structures use diagonal stay rods combined with rudder surface cantilevers to bear the rudder surface hinge-line load. In order to prevent the rudder surface from colliding with the diagonal stay rod when the rudder surface rotates, a large opening needs to be set on the leading edge of the rudder surface, which seriously reduces the aerodynamic efficiency of the rudder surface; Low efficiency and high structural weight penalty. Contents of the invention [0003] In order to solve the defec...

AI Technical Summary

Problems solved by technology

In order to prevent the rudder surface from colliding with the diagonal stay rod when the rudder surface rotates, this structure needs to set a large opening on the leading edge of the rudder surface, which seriously reduces the aerodynamic efficiency of the rudder surface; Low efficiency, high structural weight penalty

Images