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Intermittent-motion-pair-mechanism-contained comprehensive test bench for nonlinear dynamic characteristics

A non-linear dynamics and comprehensive testing technology, which is applied in the field of comprehensive test bench for nonlinear dynamic characteristics of the mechanism with gap kinematics, which can solve the problem of the contact mode and motion state of the three-dimensional kinematics. There is little research on the gap kinematics Motion characteristics and other issues, to achieve the effect of rich experiments, simplified structure and easy operation

Pending Publication Date: 2019-02-22
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the previous studies mainly focused on the plane motion pair, and there were few studies on the contact mode and motion state of the three-dimensional motion pair;

Method used

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  • Intermittent-motion-pair-mechanism-contained comprehensive test bench for nonlinear dynamic characteristics
  • Intermittent-motion-pair-mechanism-contained comprehensive test bench for nonlinear dynamic characteristics
  • Intermittent-motion-pair-mechanism-contained comprehensive test bench for nonlinear dynamic characteristics

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Embodiment Construction

[0028] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. In the following descriptions and drawings, unless otherwise indicated, the same numerals in different drawings indicate the same or similar elements. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of arrangements consistent with aspects of the invention as recited in the appended claims. Each embodiment in this specification is described in a progressive manner.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific ...

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Abstract

The invention discloses an intermittent-motion-pair-mechanism-contained comprehensive test bench for nonlinear dynamic characteristics. A sleeve sleeves a second rotating shaft; one motor drives the second rotating shaft to rotate or to be locked; and the other motor drives the sleeve to slide along the second rotating shaft. According to the invention, a changing rule of mechanical characteristics between motion pair elements under conditions of different clearances, different rotating speeds and relative horizontal planes is obtained. With the test bench, switching among a cylindrical pair,a sliding pair and a rotating pair is realized and relevant nonlinear dynamic characteristics testing is carried out.

Description

technical field [0001] The invention relates to the field of dynamic performance of precision machinery, in particular to an experimental platform for comprehensive testing of nonlinear dynamic characteristics of a motion pair mechanism with gaps. Background technique [0002] With the continuous development of modern technology, more and more fields have higher and higher requirements for precision equipment. Especially in some fields such as aerospace, higher requirements are put forward for the motion accuracy and dynamic performance of its moving parts, and the motion pair clearance is one of the main reasons affecting the dynamic performance of aerospace equipment. There are many factors that need to be considered in the establishment of the gap motion pair model. How to make the gap motion pair model more realistic and accurately reflect the actual situation has become an urgent problem to be solved in current research. To study the dynamic characteristics of machiner...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00
CPCG01M99/00
Inventor 钱孟波阎绍泽
Owner TSINGHUA UNIV
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