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Method for calculating contact force of rollers of increasing device

A technology of contact force and roller, which is applied in calculation, measurement device, design optimization/simulation, etc. It can solve the problems of complex calculation geometry and inaccurate method of roller force, so as to shorten the development cycle, overcome the inaccuracy of simplification, and reduce the cost Effect

Active Publication Date: 2017-05-31
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for calculating the contact force of the roller of the procreation device, which solves the problem of inaccurate calculation of the roller force of the highly static and indeterminate motion control mechanism with complex geometric shapes and numerous kinematic pairs.

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  • Method for calculating contact force of rollers of increasing device
  • Method for calculating contact force of rollers of increasing device
  • Method for calculating contact force of rollers of increasing device

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Embodiment Construction

[0029] 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 a method for calculating contact force of rollers of an increasing device and belongs to the technical field of structure strength analysis. A nonlinear finite element analysis method is adopted. The method comprises steps of step 1, inputting material plasticity curves of rollers and a slide rail mechanism and establishing elasto-plasticity models of the rollers and the slide rail mechanism; step 2, establishing contact pairs of the rollers and edges trips of the slide rails; step 3, inputting geometric nonlinear restrictions; step 4, dividing partial contact regions of the rollers and the slide rails into hexahedral grids and dividing other regions into tetrahedron grids; and step 5, selecting an iteration solver to carry out nonlinear solving. According to the invention, material nonlinearity, contact nonlinearity and geometric nonlinearity of the rollers and the slide structures are fully considered; statically indeterminate analysis is performed on a three-dimensional entity in a loading process; structural stiffness is actually simulated; load magnitude of the rollers is precisely acquired; and the method is characterized in that precision is high, research and development period can be shortened and cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of structural strength analysis, and in particular relates to a method for calculating the contact force of a roller of an accretion device. Background technique [0002] With the improvement of the flight performance of modern aircraft, high-lift accretion devices are widely used. Among them, the movement mechanism is the key load-bearing part, and the contact form of roller slide rail is widely used for concentrated load transmission. Due to the large number of rollers, the force transmission is affected by the stiffness of the local structure. , is a typical statically indeterminate structure; and the load level of the roller is large, the force on the contact part is complex, and problems such as contact nonlinearity, material nonlinearity, and geometric nonlinearity are highly intertwined. Such as figure 1 As shown, the roller slide rail structure shown in the figure uses two pairs of rollers, that is,...

Claims

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Application Information

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IPC IPC(8): G01L5/00G06F17/50
CPCG01L5/00G06F30/23
Inventor 郑茂亮范瑞娟李健
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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