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Auxiliary test device specially used to study bending performance of small bars

A test device and rod technology, applied in the field of mechanical performance research, can solve the problems of small applied load, less experimental research on the bending performance of small rods, and the inability to study the bending performance of small rods, etc., to achieve convenient adjustment, firmly fixed effect

Active Publication Date: 2017-10-20
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In terms of research on the bending performance of small rods, due to the small load required for the rods and the lack of corresponding displacement measurement systems, there are few experimental studies on the bending performance of small rods.
However, due to the limitations of the existing research devices, the bending performance of small rods cannot be studied, so an auxiliary test device for the research on the bending performance of small rods is proposed.

Method used

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  • Auxiliary test device specially used to study bending performance of small bars
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  • Auxiliary test device specially used to study bending performance of small bars

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Embodiment Construction

[0030] The present invention will be further explained below in conjunction with the embodiments and the drawings of the specification.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or It is implied that the referred part or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0032] The auxiliary test device dedicated to the study of the bending performance of small rods of the present invention mainly includes four parts: a base 1, a rod clamping ...

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Abstract

The invention discloses an auxiliary test device specially used to study bending performance of small bars, the auxiliary test device includes a base with supporting function, both sides on the top of the base are provided with an I-shaped guide rails, load application mechanisms are arranged left-right symmetrically inside the guide rail on the upper part, bar clamping mechanisms are arranged left-right symmetrically at the middle of the guide rail, and vertical deflection measurement systems are arranged left-right symmetrically outside the guide rail; and the load application mechanisms and the bar clamping mechanisms can slide along the guide rail right and left. Advantages are that: 1) bars with different lengths, different heights of sections can be clamped, the bending performance of the small bars with different lengths, different heights of sections can be studied, and ideal fixed constraint can be formed at both ends of the bars; 2) a plurality of adjustable concentrated loads can be applied to any position in the upper end surface of a bending bar along the axial direction of the bending bar; 3) vertical deflection of multi points at any position in the upper end surface of the bending bar can be simultaneously detected by a vertical deflection measurement device along the axial direction of the bending bar.

Description

Technical field [0001] The invention relates to the field of mechanical performance research, in particular to an auxiliary test device dedicated to the research on the bending performance of small rods. Background technique [0002] Since the start of the National Structural Design Competition in 2005, the selection of materials for small and medium-sized structural members has gradually expanded from the initial paper materials to the later bamboo, wood and concrete. The internal structure of the rod is also becoming more and more diverse. However, the bending performance of the structural members in the structural design competition has not been systematically studied. Therefore, the design of the model lacks theoretical basis. [0003] Most of the existing research devices are limited to the research on the bending performance of large-scale members under simply supported conditions. When studying the bending performance of the members, the two ends of the members that need ...

Claims

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Application Information

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IPC IPC(8): G01N3/06G01N3/20
CPCG01N3/062G01N3/20G01N2203/0023G01N2203/0605
Inventor 郭彤邹翼余夏明
Owner SOUTHEAST UNIV
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