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Irregular member bar rigidity intensity testing device under composite environment

A test device and irregular technology, applied in the field of stiffness measurement and strength test devices of rods, can solve the problems of not suitable for laboratory test requirements, difficult to adjust the torque range, and poor versatility, etc., to achieve simple structure and consistent results Good performance and strong versatility

Pending Publication Date: 2019-11-01
TIANJIN AEROSPACE RELIA TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing torsion testing machine is bulky, heavy, high energy consumption, and the torque range is not easy to adjust, and its versatility is not strong. test requirements, especially for testing the stiffness and strength of antenna rods

Method used

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  • Irregular member bar rigidity intensity testing device under composite environment
  • Irregular member bar rigidity intensity testing device under composite environment

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Embodiment Construction

[0021] As shown in the accompanying drawings, the present invention will be further described: the present invention is a device for testing the rigidity of irregular rods in a composite environment, which is characterized in that it includes a fixed frame 1, an angle sensor 2, a shaft coupling 3, a bearing 4. Hollow cylinder 5, force arm disk 6, locking device 7, steel wire rope 8, force sensor 9, servo actuator 10, environmental chamber 11, rod-shaped test piece 12, fixed platform 13, data acquisition instrument 14, all The rod-shaped test piece 12 is placed in the environmental chamber 11, and the environmental stress, such as temperature and humidity, is applied to the rod-shaped test piece 12 through the environmental chamber 11. The bottom of the rod-shaped test piece 12 is fixed on the test platform 13 by a clamp. The top of the rod-shaped test piece 12 is equipped with a force arm disk 6, and the force arm disk 6 and the rod-shaped test piece 12 are connected by threads...

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Abstract

The invention provides an irregular member bar rigidity intensity testing device under composite environment. The device comprises a fixed frame, an angle sensor, a coupling, a bearing, a hollow cylinder, a force arm disc, a locking device, a steel wire rope, force sensors, a servo actuator, an environment case, a bar-shaped testing piece, a fixed platform and a data collector. The bottom portionof the bar-shaped testing piece is fixed on a testing platform through a clamp, the top portion of the bar-shaped testing piece is provided with the force arm disc, the upper portion of the force armdisc is provided with the hollow cylinder, the coupling is used for connecting a connection shaft at the top portion of the hollow cylinder with a connection shaft at the bottom portion of the angle sensor, connection devices are arranged at the opposite corners of the two sides of the force arm disc, the force sensors are installed between the connection devices and the servo actuator, and the two force sensors and the angle sensor are connected with the data collector through cables. The irregular member bar rigidity intensity testing device has the simple structure, easy operation, the small volume, the low energy consumption, the high universality and the lower cost, and can be used for measuring the torsional rigidity of various irregular bar structures in specific environments.

Description

technical field [0001] The invention relates to a device for measuring stiffness and strength of a bar, in particular to a device for testing the stiffness of an irregular bar in a composite environment. Background technique [0002] The so-called bar refers to the component whose longitudinal (length direction) dimension is much larger than the transverse (perpendicular to the length direction). The shape and size of the bar can be described by two main geometric elements: The cross section refers to the section perpendicular to the length direction of the rod, and the axis is the connection line of the centers of each cross section. The cross section and the axis of the rod are perpendicular to each other. A rod with a straight line and the same cross section is called a straight rod of equal cross section. , Mechanics of materials mainly studies straight rods with equal cross-sections. The rods whose cross-section changes along the axis are called variable-section rods. R...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/22G01B21/22
CPCG01B21/22G01N3/22
Inventor 郭磊余坤茂吴军管伟民宋桂环杨和培费国权
Owner TIANJIN AEROSPACE RELIA TECH
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