US12571447USUSPTO Grant XML

Multi-directional broadband tuned mass damper and design method thereof

Disclosed are a multi-directional broadband tuned mass damper and a design method thereof, since a first damping structure and a second damping structure are set on a rigid vibration damping frame, and the first damping structure is provided with a control main frequency, the second damping structure is provided with two control main frequencies, the control main frequency of the second damping structure is greater than that of the first damping structure; under the synergistic effect, the second damping structure mainly effectively broadens the control range for high frequencies, and a plurality of first damping structures control the control main frequency of a low frequency one-to-one, thereby controlling the full frequency, and the extension direction of the first damping structure is the same as that of the second damping structure on the rigid vibration damping frame, ensuring isotropic mass and stiffness distribution characteristics thereof; and furthermore, when using different control frequency ranges, the number and distribution of the first damping structure and the second damping structure, as well as the corresponding mass ratio and damping ratio can be pre-designed, so as to adapt to different control requirements.

Patent

Brief

Patent brief

Problem

How can vibration in electric motors and rotors be reduced?

Novelty

Damping mounts is reinforced by front-page matches on damping, damper.

Uses

Motor mounts, Equipment isolation, Compact machinery

Assignee

Unknown assignee

Published

Mar 10, 2026

Inventors

Weiqi Mao, Xiaobo Wu, Guoqiang Jing, Xiaopeng Chai, Jikai Tian, Zhao Jin, Bo Wang, Zhengxing Wang, Hao Dai, Changfei Ma, Qingnian Dai, Long Xiao, Pengfei Liu, Nengjun Sheng, Guanjun Cao, Dingxin Wang, Huan Feng, Shuhui Tan

Domain

Electromechanical systems

Plain-English summary

Problem

How can vibration in electric motors and rotors be reduced?

Solution

Key novelty

Damping mounts is reinforced by front-page matches on damping, damper.

Applications

Motor mountsEquipment isolationCompact machinery

Relevant search intents

dampingdamper

Claims preview

1 . A multi-directional broadband tuned mass damper, comprising: a rigid vibration damping frame ( 1 ), and two ends of the rigid vibration damping frame ( 1 ) in a length direction are configured to connect to a sling, wherein the rigid vibration damping frame ( 1 ) is provided with at least one first damping structures ( 2 ) and at least one second damping structures ( 3 ) distributed along the length direction at intervals, and an extension direction of the at least one first damping structure ( 2 ) is the same as that of an extension direction of the at least one second damping structure ( 3 ); wherein the at least one first damping structures ( 2 ) is provided with a control main frequency; the at least one second damping structures ( 3 ) is provided with two control main frequencies; and the control main frequencies of the at least one second damping structure ( 3 ) is higher than each control main frequency of the at least one first damping structure ( 2 ); wherein the at least one first damping structure ( 2 ) comprises a first steel strand ( 200 ) and a first mass block ( 201 ); one end of the first steel strand ( 200 ) is connected to the rigid vibration damping frame ( 1 ) by means of a connecting block ( 4 ), and the other end is connected to the first mass block ( 201 ); and a formula of the control main frequency of the at least one first damping structure ( 2 ) is: f 1 = ( K / M ) 1 / 2 / 2 , wherein K is a stiffness of the first steel strand ( 200 ), and M is a mass of the first mass block ( 201 ); wherein the first mass block ( 201 ) is provided with a first casting hole, and a part of the first steel strand ( 200 ) extending into the first casting hole is connected to the first mass block ( 201 ) by means of a first casting alloy in a casting manner. 2 . The multi-directional broadband tuned mass damper according to claim 1 , wherein there are a plurality of the first damping structures ( 2 ) and a plurality of the second damping structures ( 3 ); and the control main frequencies of the plurality of the first damping structures ( 2 ) are different; and the two control main frequencies of each second damping structure ( 3 ) are different, and the two control main frequencies of the plurality of second damping structures ( 3 ) are different. 3 . The multi-directional broadband tuned mass damper according to claim 2 , wherein one second damping structure ( 3 ) is provided between two adjacent first damping structures ( 2 ); or the rigid vibration damping frame ( 1 ) is provided with a first area and a second area in the length direction, all the first damping structures ( 2 ) are arranged in the first area, and all the second damping structures ( 3 ) are arranged in the second area.

Linked approaches

Damping mounts

Isolation and damping structures that absorb motor vibration.

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