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A test method for dynamic characteristics of an actuator

A technology of dynamic characteristics and test methods, applied in the testing of machine/structural components, instruments, and mechanical components, etc., can solve the problem of difficult to obtain the complex stiffness characteristics of the actuator, and achieve the effect of correct theory and accurate test.

Active Publication Date: 2019-02-05
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology

Generally, the transfer characteristics of the actuator are provided by the manufacturer (technical parameters), which is relatively accurate, but the complex stiffness characteristics of the actuator need to be obtained by means of testing, because the existing test methods are difficult to operate, resulting in the complexity of the actuator. Stiffness properties are difficult to obtain

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  • A test method for dynamic characteristics of an actuator
  • A test method for dynamic characteristics of an actuator
  • A test method for dynamic characteristics of an actuator

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Embodiment Construction

[0025] 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 making creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail b...

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Abstract

The invention relates to an actuator dynamic characteristic test device and an actuator dynamic characteristic test method. The method comprises the following steps: making a tested actuator act on a non-center position of a rotating disk with adjustable moment of inertia; measuring the input displacement and the output displacement; and calculating out multiple groups of round(f) / round(x) and round(f) / round(F) based on known or measured data, and fitting and drawing out round(f) / round(x)-omega and round(f) / round(F)-omega, which are a transfer characteristic curve and an impedance characteristic curve of the tested actuator. The actuator dynamic characteristic test device of the invention has the advantages of simple structure, easy implementation, low cost, and the like. The actuator dynamic characteristic test method of the invention has the advantages of being theoretically correct, simple and easy to understand, and high in precision of test results.

Description

technical field [0001] The invention belongs to the field of aircraft strength tests, in particular to a method for testing the dynamic characteristics of actuators. Background technique [0002] In the analysis of aircraft aeroservoelastic stability, accurate impedance characteristics (namely complex stiffness) and transfer characteristics (namely transfer function) of actuators are needed. Generally, the transfer characteristics of the actuator are provided by the manufacturer (technical parameters), which is relatively accurate, but the complex stiffness characteristics of the actuator need to be obtained by means of tests. Because the existing test methods are difficult to operate, the complex stiffness of the actuator Stiffness properties are difficult to obtain. Contents of the invention [0003] The object of the present invention is to provide a test method for the dynamic characteristics of an actuator to solve the above problems. [0004] In order to achieve th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 张红波李俊杰蒲利东张庚庚高怡宁
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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