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An intelligent support rod with high frequency response infinite stiffness based on semi-active control method

A support rod and high-frequency response technology, which is applied in the direction of vibration suppression adjustment, spring/shock absorber, mechanical equipment, etc., can solve the problems of large amount of interaction with the upper controller, large mass of support rod system truss, and complex system control loop. , to achieve the effects of not being affected by external temperature changes, compact structure, and small volume

Active Publication Date: 2022-08-02
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the effect of the rod system support structure is mainly reflected in the support stiffness, the present invention proposes a rod design method that relies on a semi-active method to achieve quasi-infinite stiffness. The problem of excessive mass of the bar system truss, on the other hand, solves the problems of large interaction volume of the upper controller of the active bar system structure, too many control variables, etc., resulting in too complicated control loop of the system and poor robustness, etc.

Method used

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  • An intelligent support rod with high frequency response infinite stiffness based on semi-active control method
  • An intelligent support rod with high frequency response infinite stiffness based on semi-active control method
  • An intelligent support rod with high frequency response infinite stiffness based on semi-active control method

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Embodiment Construction

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] For the general two-force rods hinged at both ends, the commonly used support rod 1 and the series rod 2 made of electrostrictive material are installed in series in the present invention. The stress deformation of the commonly used strut member 1 is due to the fact that the strain measurement sensor group 3 consists of the first strain sensor 3-1, the second strain sensor 3-2, the third strain sensor 3-3, and the fourth strain sensor 3-4. A Wheatstone full-bridge strain circuit is formed to ensure that the measurement results are basically not affected by changes in the external temperature environment.

[0023] The high-integration analog controller 4 is installed in the miniature thermostatic control box 5, and is composed of a differential signal instrumentation amplifier 6, a high output impedance drive amplifier 7, and a po...

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Abstract

The invention discloses a high-frequency-response, infinite-stiffness intelligent support rod based on a semi-active control method, comprising a common support (1), a series rod (2) made of electrostrictive material, and pasted on the common support rod The upper strain measurement sensor group (3) of the component (1), a high-integration analog controller (4), and a miniature thermostatic control box (5) for installing the high-integration analog controller. The invention uses a simulated closed-loop loop to realize the semi-active control of the support rod. By realizing the high-frequency response and zero deformation of the rod as a whole, the infinite stiffness characteristics of the rod are formed, so that the stiffness characteristics of the rigid member are no longer subject to the quality of the rod. And it is easy to integrate and does not depend on the host controller.

Description

technical field [0001] The invention belongs to the field of intelligent structure and control, and particularly relates to a high-frequency response support rod based on a semi-active control method. Background technique [0002] Support rod is the most common component form in various fields, and is a common component of various entities in civil engineering, optical engineering, precision machinery, and aerospace. Rods can exist alone to achieve force transmission between two separate parts; or a rod system can be composed of multiple rods, which can be composed of trusses or other forms to play a light-weight support role. Rods initially consisted entirely of passive structures, such as house trusses composed of wooden rods or lightweight solids composed of metal rods. Although this kind of passive structure is simple in structure, the disturbance suppression of the supported load completely depends on the prior design, and there is often a problem that the mass of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/00
CPCF16F15/002F16F15/005
Inventor 敬子建王进张超亓波
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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