KR20040021087A - Dynamic Damper - Google Patents

Dynamic Damper Download PDF

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Publication number
KR20040021087A
KR20040021087A KR1020020052533A KR20020052533A KR20040021087A KR 20040021087 A KR20040021087 A KR 20040021087A KR 1020020052533 A KR1020020052533 A KR 1020020052533A KR 20020052533 A KR20020052533 A KR 20020052533A KR 20040021087 A KR20040021087 A KR 20040021087A
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KR
South Korea
Prior art keywords
vibration
plate
support plate
supporting plate
reducer
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KR1020020052533A
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Korean (ko)
Inventor
박종현
배종국
최익준
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현대중공업 주식회사
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Priority to KR1020020052533A priority Critical patent/KR20040021087A/en
Publication of KR20040021087A publication Critical patent/KR20040021087A/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • F16F15/085Use of both rubber and metal springs

Abstract

PURPOSE: A dynamic vibration reducer is provided to effectively control vibration of a wide frequency area by installing the dynamic vibration reducer to a place where excessive vibration is produced. CONSTITUTION: A dynamic vibration reducer comprises a supporting plate(2) fixed to a propping plate(4) becoming the base; a damping member(3) attached to the supporting plate; and weight sets(1). The supporting plate functions as a leaf spring. The damping member absorbs and suppresses vibration. The weight set is disposed to one end of the supporting plate with the damping member.

Description

동흡진기{Dynamic Damper}Dynamic Damper {Dynamic Damper}

본 발명은 판과 고무를 이용한 동흡진기에 관한 것으로, 보다 상세하게는 구조물이 기진원과 공진이 되어 과도한 진동이 발생하는 곳에 설치하여 넓은 주파수 영역의 진동을 효과적으로 제어할 수 있도록 하는 판과 고무를 이용한 동흡진기에관한 것이다.The present invention relates to a copper reducer using a plate and rubber, and more particularly, a plate and a rubber that can be installed in a place where excessive vibration occurs due to the resonance of the structure with the vibration source. It is about the copper reducer used.

일반적으로, 진동 및 소음에 대한 규제가 강화되고 있는 상황에서 방진에 대한 관심이 더욱 고조되고 있는바, 방진장치에 개발에 대한 필요성의 중요성은 더욱 높아지고 있는 실정이다. 특히, 선박의 경우 브리지 윙(Bridge Wing)이나 레이더 마스트(radar mast), 포어마스트(Foremast)등과 같은 구조물은 무게가 상당하고 폭에 비해 길이가 길어, 선박이 기진원과 공진할 가능성이 매우 높다. 이러한 진동은 선박의 거주성을 저해할 뿐만 아니라, 항해장비에 영향을 주어 안전한 항해에 큰 장애가 된다.In general, as the regulations on vibration and noise are being tightened, interest in dust protection is increasing, and the need for development in dustproof devices is increasing. In particular, in ships, structures such as bridge wings, radar masts, and foremasts have significant weights and lengths compared to their widths, which makes the ship highly likely to resonate with the source. . This vibration not only impairs the habitability of the ship, but also affects the navigational equipment, which is a great obstacle to safe navigation.

이와 같은 진동문제를 해결하기 위한 동적인 방법으로 동흡진기를 설치하는 경우가 있으며, 상기 동흡진기는 기계 구조물 등의 일정 진동수로 진동하는 큰 진동체에 작은 질량-스프링-댐퍼계를 부착하여 진동을 줄이는 방법이다. 동흡진기의 원리는, 질량 -스프링-댐퍼계러 구성된 동흡진기를 일정진동수로 진동하는 진동체의 고유주파수에 맞추어 적절하게 조율한 후 부착하여 진동체의 진동을 줄여주는 것이다. 동흡진기는 가진 진동수와 공진하는 감쇠가 작은 기계나 구조물에 효과적으로 사용되고 있으며, 절연기를 설치할 수 없는 경우나, 절연기로는 한계가 있는 경우, 이미 설치가 완료된 기계 시스템에 절연 변경이 곤란한 경우 또는 국부 진동모드에 대한 진동저감을 할 때 동흡진기를 부착하는 방법이 유용하게 사용되고 있다.In order to solve such a vibration problem, a dynamic reducer may be installed. The dynamic reducer attaches a small mass-spring-damper system to a large vibrating body that vibrates at a constant frequency of a mechanical structure. It is a way to reduce it. The principle of the dynamic reducer is to reduce the vibration of the vibrating body by appropriately tuning and attaching the dynamic reducer composed of mass-spring-damper system according to the natural frequency of the vibrating body vibrating at a constant frequency. Dynamic oscillators are effectively used in machines or structures with small vibrations and resonant damping, when insulators cannot be installed or when there is a limit to the isolators. A method of attaching a copper reducer is usefully used when reducing vibration for a mode.

상기 동흡진기의 이론적 배경에는 본계(Main System)에 다른 자유도계의 부가, 동흡진기의 고유진동수를 본계의 진동 가진 주파수와 동일하게 설계, 본계의가진 주파수에서 계의 응답을 이론적으로 '0' 으로 만듦, 부가계의 운동 방향을 본계의 반대방향으로 진동하게 함 등의 이론적 배경으로 질량, 강성, 댐핑을 통해 주구조물이 가지는 진동에너지를 동흡진기를 통해 감소시키는 방법이며, 효과적인 동흡진기 성능을 위해서는 구조물의 무게, 주파수, 댐핑에 따라 적절하게 조율된 동흡진기의 질량, 강성, 댐핑을 구현해야 한다.The theoretical background of the copper reducer is to add another degree of freedom to the main system, and to design the natural frequency of the copper reducer to be the same as the vibration excitation frequency of the main system. It is a method to reduce vibration energy of main structure through dynamic reducer through mass, stiffness, and damping based on the theoretical background such as making the direction of movement of additional system vibrate in the opposite direction of the main system. The mass, stiffness and damping of the copper reducer, properly tuned according to the weight, frequency and damping of the structure, must be achieved.

종래에 개발된 동흡진기에는 탄성감쇠수단의 방법을 사용하여 질량과 스프링을 이용하여 동흡진기를 구성하고 있지만, 스프링 자체의 감쇠는 상당히 낮기 때문에 댐핑이 충분하지 못하고, 목적으로 하는 제한된 주파수 영역에서만 효과를 볼 수 있었으며, 댐핑의 수단으로 댐핑 액을 상용하기도 하는데 이는 장비의 크기가 증가하고 복잡해져 거대한 동흡진기 제작에 어려움이 있는 등 많은 문제점이 있었다.In the conventionally developed copper reducer, a mass reducer is used to configure the copper reducer using the method of elastic attenuation means, but the damping of the spring itself is considerably low, so that damping is not sufficient, and it is effective only in the limited frequency range. Also, the damping solution is commercially available as a means of damping, which increases the size and complexity of the equipment and has many problems, such as difficulty in producing a huge copper reducer.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 안출된 것으로,The present invention has been made to solve the above conventional problems,

그 목적은 구조물이 기진원과 공진이 되어 과도한 진동이 발생하는 곳에 설치하여 넓은 주파수 영역의 진동을 효과적으로 제어할 수 있도록 하는 판과 고무를 이용한 동흡진기를 제공하는 것이다.The purpose is to provide a copper reducer using a plate and rubber that can be installed in a place where excessive vibration occurs due to the resonance of the vibration source and the structure can effectively control the vibration of a wide frequency range.

본 발명은 진동 제거를 위해 진동 및 소음이 발생하는 구조물에 설치되는 동흡진기에 있어서, 베이스가 되는 받침판에 고정 설치되어 판스프링 역할을 하는 지지판과, 상기 지지판에 부착되어 진동을 흡수하고 억제하는 제진재와, 중량의 가변이 용이하도록 여러 개의 세트로 형성되어 상기 제진재가 부착된 지지판의 일측 끝단에 구비된 중량세트로 구성된 것을 특징으로 하는 판과 고무를 이용한 동흡진기를 제공함으로서 발명이 추구하는 목적을 달성 할 수 있다.The present invention is a dynamic reducer installed in a structure that generates vibration and noise for vibration removal, the support plate is fixed to the base plate serving as a base serving as a plate spring, and the agent is attached to the support plate to absorb and suppress vibration The invention seeks to provide a copper reducer using a plate and a rubber, characterized in that it is formed of a plurality of sets so as to easily vary the weight and provided at one end of the support plate to which the damping material is attached. Can achieve its purpose.

도 1 은 본 발명 실시예의 정면도,1 is a front view of an embodiment of the present invention,

도 2 는 본 발명 실시예의 정면도,2 is a front view of an embodiment of the present invention;

도 3 은 본 발명 실시예의 정면도.3 is a front view of an embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of Symbols for Main Parts of Drawings>

(1) : 중량세트 (2) : 지지판(1): weight set (2): support plate

(3) : 제진재 (4) : 받침판(3): damping material (4): backing plate

상기한 바와 같은 목적을 달성하고 종래의 결점을 제거하기 위한 과제를 수행하는 본 발명의 실시예인 구성과 그 작용을 첨부도면에 연계시켜 상세히 설명하면 다음과 같다.When described in detail with reference to the accompanying drawings, the configuration and the operation of the embodiment of the present invention to achieve the object as described above and to perform the task for eliminating the conventional drawbacks.

도 1, 2, 3 은 본 발명 실시예의 정면도를 도시한 것으로, 베이스가 되는 받침판(4)에 고정 설치되어 판스프링 역할을 하는 지지판(2)과, 상기 지지판(2)에 부착되어 진동을 흡수하고 억제하는 제진재(3)와, 중량의 가변이 용이하도록 여러 개의 세트로 형성되어 상기 제진재(3)가 부착된 지지판(2)의 일측 끝단에 구비된 중량세트(1)로 구성한다.1, 2, and 3 illustrate a front view of an exemplary embodiment of the present invention, which is fixed to a supporting plate 4 serving as a base and serves as a leaf spring, and is attached to the supporting plate 2 to absorb vibrations. And a weight set (1) provided at one end of the vibration damper (3) to suppress and suppress, and the support plate (2) to which the vibration damper (3) is attached, which is formed in a plurality of sets so as to easily vary the weight.

이하, 본 발명의 실시예를 첨부도면과 연계하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 1 (실시예 1)은 'ㄷ'자 형상의 동흡진기로 지지판(2)을 받침판(4)의 양쪽에 각각 설치하고, 상기 지지판(2)의 양 측면에 제진재(3)를 부착하며, 상기 지지판(2)의 끝단 상부에 여러 개로 이루어진 중량세트(1)를 구비하여 구성한다.1 (Example 1) is a 'c' shaped copper reducer is installed on both sides of the support plate (2), respectively, and the vibration damping material (3) attached to both sides of the support plate (2) It comprises a weight set (1) consisting of several pieces on the upper end of the support plate (2).

도 2 (실시예 2)는 받침판(4)의 중앙에 지지판(2)을 설치하고, 상기 지지판의 좌우측면에 제진재(3)를 부착한 후 제진재의 바깥쪽 측면에 얇은 평판을 부착하며, 상기 지지판의 상부에 중량세트(1)를 구비하여 구성한다.2 (Example 2) is to install the support plate 2 in the center of the support plate 4, attach the vibration damping material 3 to the left and right sides of the support plate and then attach a thin plate to the outer side of the vibration damping material It comprises a weight set (1) on the upper portion of the support plate.

도 3 (실시예3)은 받침판(4)의 일측에 지지판(2)을 설치하고, 상기 지지판에 수직으로 하여 받침판과 수평이 되도록 다른 지지판(2)을 설치하며, 받침판과 수평인 지지판(2)의 양 측면에 제진재(3)를 부착하며, 상기 지지판의 끝단에 중량세트(1)를 구비하여 수직방향의 진동을 제어할 수 있도록 구성한다.FIG. 3 (Example 3) shows a supporting plate 2 on one side of the supporting plate 4, and installs another supporting plate 2 perpendicular to the supporting plate so as to be horizontal to the supporting plate 2, and a supporting plate 2 horizontal to the supporting plate 2 Attached to both sides of the vibration damping material (3), and provided with a weight set (1) at the end of the support plate is configured to control the vibration in the vertical direction.

상기와 같이 본 발명은 지지판과 제진재를 조합하여 사용하고, 제진재(3)가 부착된 지지판(2)은 원하는 방향에 따라 개수 및 형태, 위치를 변화시킬 수 있어 수직, 수평 진동을 모두 제어 할 수 있도록 구성된다.As described above, the present invention uses a combination of the support plate and the vibration damper, and the support plate 2 to which the vibration damper 3 is attached can change the number, shape, and position according to a desired direction, thereby controlling both vertical and horizontal vibrations. Configured to do so.

본 발명은 상술한 특정의 바람직한 실시 예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 고안이 속하는 기술 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

상기와 같은 본 발명은 동흡진기의 질량, 강성, 댐핑을 아주 쉽게 구현하여 제작과 설치가 용이하며, 판에 제진재를 붙임으로서 충분한 댐핑을 확보할 수 있고, 원하는 방향으로 판과 제진재 세트를 설치하여 수직, 수평 진동을 모두 제어할 수 있어, 넓은 주파수 영역에서 구조물이 기진원과 공진해서 과도한 진동이 발생 할 경우 효과적으로 진동을 제어할 수 있으며, 단일 혹은 다중 판으로 판의 개수와 두께에 따라 스프링의 강성을 조절할 수 있는 등 경제적이며 안전한 매우 유용한 발명인 것이다.The present invention as described above is very easy to manufacture and install by implementing the mass, stiffness, and damping of the copper reducer, it is possible to ensure sufficient damping by attaching the damping material to the plate, the plate and the damping material set in the desired direction It can be installed to control both vertical and horizontal vibration, so that the structure can be effectively controlled when excessive vibration occurs due to the resonance of the structure in a wide frequency range, depending on the number and thickness of the plates with single or multiple plates. It is an economical and safe very useful invention that can adjust the stiffness of the spring.

Claims (2)

진동 제거를 위해 진동 및 소음이 발생하는 구조물에 설치되는 동흡진기에 있어서,In a dynamic reducer installed in a structure that generates vibration and noise to eliminate vibration, 베이스가 되는 받침판(4)에 고정 설치되어 판스프링 역할을 하는 지지판(2)과,A support plate 2 fixedly installed on a supporting plate 4 serving as a base and serving as a leaf spring, 상기 지지판(2)에 부착되어 진동을 흡수하고 억제하는 제진재(3)와,A vibration damper (3) attached to the support plate (2) to absorb and suppress vibrations; 중량의 가변이 용이하도록 여러 개의 세트로 형성되어 상기 제진재(3)가 부착된 지지판(2)의 일측 끝단에 구비된 중량세트(1)로 구성된 것을 특징으로 하는 판과 고무를 이용한 동흡진기.Copper reducer using a plate and rubber, characterized in that the weight set (1) formed in a plurality of sets to facilitate the variable of the weight provided on one side end of the support plate (2) to which the vibration damping material (3) is attached. 제 1 항에 있어서,The method of claim 1, 상기 제진재(3)가 부착된 지지판(2)은 원하는 방향에 따라 개수 및 형태, 위치를 변화시킬 수 있는 것을 특징으로 하는 판과 고무를 이용한 동흡진기.The vibration damper using the plate and rubber, characterized in that the support plate (2) to which the vibration damper (3) is attached can change the number, shape, and position according to a desired direction.
KR1020020052533A 2002-09-02 2002-09-02 Dynamic Damper KR20040021087A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101452547B1 (en) * 2010-12-13 2014-10-21 현대중공업 주식회사 Cover a Combined Stiffness Increasing Device for Dynamic Vibration Absorber
KR20190077784A (en) * 2017-12-26 2019-07-04 주식회사 포스코 Base of washrer
KR20210076772A (en) 2019-12-16 2021-06-24 대우조선해양 주식회사 Vibration control apparatus using eddy current damping

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101452547B1 (en) * 2010-12-13 2014-10-21 현대중공업 주식회사 Cover a Combined Stiffness Increasing Device for Dynamic Vibration Absorber
KR20190077784A (en) * 2017-12-26 2019-07-04 주식회사 포스코 Base of washrer
KR20210076772A (en) 2019-12-16 2021-06-24 대우조선해양 주식회사 Vibration control apparatus using eddy current damping

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