Multi-flexible beam vibration control device and method based on synchronous belt drive

A flexible beam and synchronous belt technology, applied in the field of multi-flexible beam vibration control devices, can solve the problems of synchronous belt elastic control accuracy, influence on control accuracy, high installation requirements, etc., achieve small pre-tightening force, improve detection accuracy, and transmission efficiency high effect

CN106933266AInactive Publication Date: 2017-07-07SOUTH CHINA UNIV OF TECH
5 Cites 13 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-07-07
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a multi-flexible beam vibration control device and method based on synchronous belt drive. The device comprises a flexible beam body, a detection part and a control part. The flexible beam body comprises three flexible beams of the same size. The detection part comprises a piezoelectric sensor and an acceleration sensor, wherein the piezoelectric sensor and the acceleration sensor are respectively arranged on the flexible beams. The control part comprises a synchronous belt drive control system and a piezoelectric drive control system. The vibration signal of the flexible beam structure is detected by the piezoelectric sensor and the acceleration sensor. A synchronous belt driven by a servo motor and a piezoelectric drive are used as an actuator for suppressing vibration. The device can be used to study the influence and vibration control of gravity, synchronous belt gap characteristics, synchronous belt elasticity and other factors on the vibration of the flexible beam structure.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of flexible structure positioning and vibration control, in particular to a multi-flexible beam vibration control device and method based on synchronous belt drive. Background technique

[0002] Flexible structures are widely used in aerospace and industrial production fields. Compared with rigid structures, they have the advantages of light weight, low energy consumption, high efficiency, and flexible operation. However, flexible structures have low natural frequencies and low-frequency modal vibrations are easily excited. Limit its application and development in some fields.

[0003] In recent years, the active vibration control of flexible structures has become the focus and hot topic of research in the world today. The acceleration sensor is light in weight, easy to install, and has a wide frequency band. Using the acceleration sensor feedback control can increase the active damping of the system in a wide freque...

Examples

Embodiment

[0037] Such as Figure 1-Figure 6 As shown, a multi-flexible beam vibration control device driven by a synchronous belt includes a flexible beam body, a detection part and a control part;

[0038] The flexible beam body includes three flexible beams with exactly the same size, material and structure, which are respectively the first flexible beam 3, the second flexible beam 13 and the third flexible beam 14, and one end of the three flexible beams is fixed on a mechanical clamp. On the device 6, the other end is a free end, the first flexible beam is fixed vertically upward, the second flexible beam is fixed vertically downward, and the center points of the two flexible beams are on the same vertical line Above, the third flexible beam is fixed along the horizontal direction. In this embodiment, it is fixed horizontally to the right and is located in the middle of the first and second flexible beams. The flexible beam designed in this way has no vibration between the three. C...