A uniformly distributed load follow-up loading device
A technology of follow-up loading and uniform load distribution, which is applied in the direction of measuring devices, testing of machine/structural components, testing of mechanical components, etc. It can solve problems such as damage to test pieces and bladder shells, damage to pressurized bladders, etc., and achieve simple implementation , easy maintenance, and the effect of protecting equipment safety
Active Publication Date: 2022-02-18
CHINA AIRPLANT STRENGTH RES INST
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Problems solved by technology
Using the traditional uniform load loading method, if the gap between the capsule shell and the test piece is small, the large deformation will cause the test piece to contact the capsule shell, and the capsule shell will add additional load to the test piece to limit the deformation of the test piece. There is a risk of damage; if the gap between the bladder shell and the test piece is large, the pressurized bladder will be squeezed out from the gap after being under pressure during the test, and the pressurized bladder will be damaged
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[0023] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. 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 present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the pr...
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The application belongs to the technical field of aircraft strength test design, and in particular relates to a uniformly distributed load follower loading device. It is fixed on the fixed plate and together with the fixed plate to form an accommodation cavity, the pressure test part of the test piece is located in the accommodation cavity, the other end of the capsule shell is provided with an opening, the test piece extends out of the accommodation cavity from the opening, and the capsule shell is in the There is a sliding surface arranged in the radial direction at the opening; the stamping bag is arranged in the accommodating cavity, and is used for applying a load to the pressure test part of the test piece when stamping and expanding; the follower baffle is an annular plate with a through hole, and the The through hole fits on the test piece, and the annular plate is slidably arranged on the sliding surface. In the present application, a follower baffle is provided at the opening of the stamping bag installation space, which not only ensures that the opening space for the deformation of the test piece is reserved at the opening, but also ensures that the stamping bag will not be extruded from the opening space.
Description
technical field [0001] The application belongs to the technical field of aircraft strength testing, and in particular relates to a uniformly distributed load follow-up loading device. Background technique [0002] Such as figure 1 As shown in , in the static strength test of the circular platform cabin of an aircraft, the test piece needs to be applied with a uniform load. To apply a uniform load, it is necessary to design the pressurized bladder and the bladder shell, and the pressurized bladder is located between the shell and the test piece. For the test piece with higher rigidity, the deformation of the test piece is small during the test, the gap between the bladder shell and the test piece is always small, and the pressurized bladder in the cavity will not be squeezed out from the gap after being under pressure and destroyed. For the large deformation test piece, the test piece bears a large concentrated load in the static test, and the test piece produces a large de...
Claims
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IPC IPC(8): G01M13/00B64F5/60
CPCG01M13/00B64F5/60
Inventor 王孟孟王高利刘冰刘玮张赟王文革
Owner CHINA AIRPLANT STRENGTH RES INST