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Wing flutter model frame segment structure

A technology of flutter model and frame segment, which is applied in the field of flutter test device design, can solve the problems of insufficient model aesthetics and time-consuming replacement status, and achieve the effects of saving test time, reducing test cost and improving accuracy

Inactive Publication Date: 2019-06-04
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology

[0002] When designing the flutter model of an aircraft wing surface, the beam frame is used to simulate the stiffness of the wing surface, and the wooden frame section is used to simulate the shape of the wing surface. Use mask paper to simulate the skin of the airfoil, or fix the dimension mask directly on the wooden frame with screws. Although these methods can meet the needs of the test, it is time-consuming to change the state, and the model is not beautiful enough

Method used

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  • Wing flutter model frame segment structure
  • Wing flutter model frame segment structure
  • Wing flutter model frame segment structure

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Embodiment Construction

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention discloses a wing flutter model frame segment structure, and belongs to the technical field of flutter test device design. The wing flutter model frame segment structure comprises a metalbeam, a leading edge, a trailing edge, a skin cover plate, common ribs, a reinforcing rib, a self-locking device, a self-locking push rod and clamping pins, wherein the leading edge, the trailing edge and the common ribs at the left and right sides are mutually connected to form a main frame, and the reinforcing rib is arranged in the main frame and used for connecting the leading edge and the trailing edge; the metal beam passes through the common ribs and the reinforcing rib and is connected with the reinforcing rib so as to install the whole main frame on the metal beam; the skin cover plate is provided with skin ribs with the clamping pins and limited on the common ribs at two sides through the clamping pins; one end of the reinforcing rib is provided with the self-locking device, andthe skin cover plate is provided with the self-locking push rod; and the skin cover plate is detachably installed on the main frame through the cooperation of the self-locking push rod and the self-locking device. In the test process, the wing flutter model frame segment structure can effectively save the test time and reduce the test cost, ensures the smooth and neat appearance of the frame segment and improves the accuracy of the test result.

Description

technical field [0001] The invention belongs to the technical field of flutter test device design, in particular to an airfoil flutter model frame section structure. Background technique [0002] When designing the flutter model of an aircraft wing surface, the beam frame is used to simulate the stiffness of the wing surface, and the wooden frame section is used to simulate the shape of the wing surface. Mask paper is used to simulate the skin of the airfoil, or the dimension mask is directly fixed on the wooden frame with screws. Although these methods can meet the needs of the test, it is time-consuming to change the state, and the model is not beautiful enough. Contents of the invention [0003] The purpose of the present invention: In order to solve the above problems, the present invention proposes a frame section structure of the airfoil flutter model, through the self-locking buckle device, the rapid installation of the three-dimensional mask can be realized, which ...

Claims

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Application Information

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IPC IPC(8): G01M7/02
Inventor 马翔张红波孙晓红李俊杰
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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