KR200442008Y1 - A study on the tuneable vibration absorber for on-board equipment - Google Patents

A study on the tuneable vibration absorber for on-board equipment Download PDF

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KR200442008Y1
KR200442008Y1 KR2020070008874U KR20070008874U KR200442008Y1 KR 200442008 Y1 KR200442008 Y1 KR 200442008Y1 KR 2020070008874 U KR2020070008874 U KR 2020070008874U KR 20070008874 U KR20070008874 U KR 20070008874U KR 200442008 Y1 KR200442008 Y1 KR 200442008Y1
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South Korea
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adapter
spring bar
vibration
weight
reducer
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KR2020070008874U
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Korean (ko)
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백일국
정성진
최수현
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대우조선해양 주식회사
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H21/00Use of propulsion power plant or units on vessels
    • B63H21/30Mounting of propulsion plant or unit, e.g. for anti-vibration purposes
    • B63H21/305Mounting of propulsion plant or unit, e.g. for anti-vibration purposes with passive vibration damping
    • 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
    • F16F7/00Vibration-dampers; Shock-absorbers
    • F16F7/10Vibration-dampers; Shock-absorbers using inertia effect
    • F16F7/104Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

본 고안은 선내 탑재 장비용 동흡진기에 관한 것으로, 동흡진기(100)에 있어서, 어댑터(10)와; 상기 어댑터(10)의 중앙에 고정되는 스프링바(20)와; 상기 스프링바부(20)에 결합된 무게추(30)를; 포함하여 구성되며, 종래에구조적인 보강방법으로는 적용할 수 없는 선재 탑재 장비의 진동문제 해결에 적용 가능하고 설치 및 조정이 용이하여 시간이 절감되며 제작 비용이 절감되는 효과가 있다. The present invention relates to a copper reducer for onboard equipment, comprising: an adapter (10); A spring bar 20 fixed to the center of the adapter 10; A weight 30 coupled to the spring bar portion 20; It is configured to include, and can be applied to solve the vibration problem of the wire rod mounting equipment that can not be conventionally applied by the structural reinforcement method, there is an effect that the installation and adjustment is easy to save time and reduce the production cost.

동흡진기, 진동, 선박, 무게추, 스프링바, 어댑터 Dynamic Reducer, Vibration, Vessel, Weight, Spring Bar, Adapter

Description

선내 탑재 장비용 동흡진기{A study on the tuneable vibration absorber for on-board equipment}Copper absorber for onboard equipment {A study on the tuneable vibration absorber for on-board equipment}

도 1은 본 고안에 따른 선내 탑재 장비용 동흡진기를 나타내는 사시도이고,1 is a perspective view showing a copper reducer for onboard equipment according to the present invention,

도 2는 본 고안에 따른 선내 탑재 장비용 동흡진기의 평면도이고,Figure 2 is a plan view of a copper reducer for onboard equipment according to the present invention,

도 3은 본 고안에 따른 선내 탑재 장비용 동흡진기를 실시예에 따른 정면도이고, 3 is a front view according to an embodiment of the copper reducer for onboard equipment according to the present invention,

도 4는 도 3에 의한 평면도이고.4 is a plan view according to FIG.

도 5는 도 3의 실시예에 따른 설치상태를 나태내는 사진이다. 5 is a photograph showing an installation state according to the embodiment of FIG.

<도면의 주요부분에 대한 설명><Description of main parts of drawing>

10 : 어댑터 11 : 본체10: adapter 11: body

12 : 지지대 13 : 결합홀12: support 13: coupling hole

20 : 스프링바 30 : 무게추20: spring bar 30: weight

31 : 원형홀 100 : 동흡진기31: circular hole 100: copper reducer

131 : 볼트 132 : 너트131: bolt 132: nut

본 고안은 선내 탑재 장비용 동흡진기에 관한 것으로 더욱 상세하게는 조달하기 쉬운 자재를 이용하여 제작 및 설치가 용이한 구조를 갖고 스프링바에 진동특성과 모드해석 및 모달 유효질량을 계산하여 선택된 무게추를 결합시 동흡진기를 설계하고 선내 탑재 장비용 동흡진기에 관한 것이다.The present invention relates to a copper reducer for onboard equipment. More specifically, it has a structure that is easy to manufacture and install using easy-to-procure materials, and calculates the weight selected by calculating vibration characteristics, modal analysis, and modal effective mass on the spring bar. The design relates to a copper reducer for coupling and to a copper reducer for onboard equipment.

일반적으로 선박내 주요 기진원과 구조물 또는 장비의 고유진동 특성과 공진문제가 발생하는 경우, 종래의 코일, 유체, 접시타입의 스프링과, 무게추와 가이더로 구성된 동흡진기는 시스템이 복잡하고 제작시간, 비용 등의 제약 조건으로 신속한 대처에 어려움이 많았으며 실재 적용하는 경우가 드물었다. 따라서 좀더 효율적이고 경제적인 동흡진기를 개발하여 문제 발생시 신속한 대처가 필요하게 되었다.In general, when the natural vibration characteristics and resonance problems of the main source of vibration and structure or equipment occur in the ship, the conventional vibration reducer composed of coil, fluid, dish type spring, weight and guider is complicated system and production time. Due to constraints such as cost and cost, it was difficult to cope quickly and it was rarely applied. Therefore, by developing a more efficient and economical copper reducer, it is necessary to respond quickly to problems.

상술한 바와 같은 문제를 해결하기 위하여 본 고안에서는, 조달하기 쉬운 자재를 이용하여 제작 및 설치가 용이한 구조를 갖고 스프링바에 진동특성과 모드해석 및 모달 유효질량을 계산하여 선택된 무게추를 결합시 동흡진기를 설계하고 선내 탑재 장비용 동흡진기를 제공하는 것을 목적으로 한다.In order to solve the problems described above, the present invention has a structure that is easy to manufacture and install using easy-to-procure materials, and combines the selected weight by calculating the vibration characteristics, modal analysis, and modal effective mass on the spring bar. It is an object to design a reducer and to provide a copper reducer for onboard equipment.

상기와 같은 문제를 해결하기 위한 본 고안의 구성에서는, 동흡진기(100)에 있어서, 어댑터(10)와; 상기 어댑터(10)의 중앙에 고정되는 스프링바(20)와; 상기 스프링바부(20)에 결합된 무게추(30)를; 포함하여 구성되는 것을 특징으로 한다.In the configuration of the present invention for solving the above problems, in the copper reducer 100, the adapter 10; A spring bar 20 fixed to the center of the adapter 10; A weight 30 coupled to the spring bar portion 20; Characterized in that it comprises a.

또한, 상기어댑터(10)는 본체(11)와, 상기 본체(11) 양측으로 결합홀(13)이 형성된 지지대(12)로 구성되며, 상기 무게추(30)는 관통된 원형홀(31)에 스프링바 (20)가 이동가능토록 결합되는 것을 특징으로 한다.In addition, the adapter 10 is composed of a main body 11, the support 12 formed with a coupling hole 13 on both sides of the main body 11, the weight 30 is a circular hole 31 through Spring bar 20 is characterized in that coupled to be movable.

또한, 상기 동흡진기(100)는 결합홀(13)에 볼트(131)와 너트(132)의 체결로 양측으로 대향되게 설치되는 것을 특징으로 한다. In addition, the copper reducer 100 is installed to be opposed to both sides by the fastening of the bolt 131 and the nut 132 in the coupling hole (13).

이하, 첨부된 도면 참조하여 본 고안에 따른 바람직한 실시 예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 고안에 따른 선내 탑재 장비용 동흡진기를 나타내는 사시도이고, 도 2는 본 고안에 따른 선내 탑재 장비용 동흡진기의 평면도이고, 도 3은 본 고안에 따른 선내 탑재 장비용 동흡진기를 실시예에 따른 정면도이고, 도 4는 도 3에 의한 평면도이고. 도 5는 도 3의 실시예에 따른 설치상태를 나태내는 사진이다.  1 is a perspective view showing a copper reducer for onboard equipment according to the present invention, Figure 2 is a plan view of a copper reducer for onboard equipment according to the present invention, Figure 3 implements a copper reducer for onboard equipment according to the present invention 4 is a front view according to an example, and FIG. 4 is a plan view according to FIG. 3. 5 is a photograph showing an installation state according to the embodiment of FIG.

도 1 내지 도 2을 참조하면, 본 고안의 동흡진기(100)는 선내 탑재 장비에 손쉽게 탈부착이 가능하도록 구성된 것으로 그 구성은 장비에 간편하게 설치 가능하도록 어댑터(10)가 구비되는데 상기 어댑터(10)은 장비의 외형 형상과 일치되도록 구비된 본체(11)와 상기 본체(11)의 양측으로 지지대(12)가 구비되어 있으며 상기 지지대는 결합홀(13)이 구비되어 있는데 상기 결합홀에는 볼트(131)이 삽입되게 된다.1 to 2, the copper reducer 100 of the present invention is configured to be easily detachable onboard equipment, the configuration is provided with an adapter 10 to be easily installed on the equipment is the adapter 10 Is provided with a support body 12 on both sides of the main body 11 and the main body 11 provided to match the outer shape of the equipment and the support is provided with a coupling hole 13, the coupling hole bolts 131 Will be inserted.

여기서 본 고안에서 상기 본체(11)의 형상이 원형으로 형성되어 있으나 이것은 본고안의 실시예에 따른 형상이며, 본체(11)의 형상은 설치되는 장비에 따라 선택적으로 변형가능하다.Here, in the present invention, the shape of the main body 11 is formed in a circular shape, but this is a shape according to the embodiment of the present disclosure, and the shape of the main body 11 is selectively deformable according to the installed equipment.

상기 어댑터(10)의 중앙에 고정되는 스프링바(20)는 설치된 장비의 진동이 어댑터(10)를 통해 진동이 전달되어오면 진동특성에 The spring bar 20 fixed to the center of the adapter 10 has a vibration characteristic when the vibration of the installed equipment is transmitted through the adapter 10.

상기 스프링바부(20)에 결합된 무게추(30)는 본 고안의 동흡진기(100)가 설치된 장비의 모드해석 및 모드의 유효질량을 계산하여 선택하게 되며 상기 무게추(30)은 관통된 원형홀(31)에 스프링바(20)가 이동가능토록 결합되는 진동특성에 따라 무게추를 이동하여 설치하도록 한다. The weight 30 coupled to the spring bar portion 20 is selected by calculating the mode analysis and the effective mass of the mode of the equipment installed the copper reducer 100 of the present invention and the weight 30 is a circular through In accordance with the vibration characteristics that the spring bar 20 is coupled to the hole 31 to be movable, it is to be installed by moving the weight.

도 3 내지 도 5는 본 고안의 실시예로 응축펌프에 설치된 상태를 나태는 것으로 상기 동흡진기(100)는 결합홀(13)에 볼트(131)와 너트(132)의 체결로 양측으로 대향되게 설치되고 응축 펌프(40)의 진동 특성에 따라 양측으로 구비된 상기 스프링바(20)에 이동가능토록 설치된 무게추(30)을 조정하여 진동을 감쇠시키게 되는 것이다.3 to 5 show the state installed in the condensation pump according to the embodiment of the present invention, the copper reducer 100 is opposed to both sides by fastening the bolt 131 and the nut 132 to the coupling hole 13. It is to dampen the vibration by adjusting the weight 30 is installed and installed on the spring bar 20 provided on both sides in accordance with the vibration characteristics of the condensation pump (40).

탄성을 갖는 모든 구조물은 구조물 자체의 고유진동수(초당 또는 분당 반복운동 횟수, ex) RPM = Revolution/minute, RPS = Hz = cycle/sec)를 가지고 있다.All elastic structures have their own natural frequencies (number of repetitions per second or minutes, ex) RPM = Revolution / minute, RPS = Hz = cycle / sec.

만약, 구조물에 주기적인 힘이 구조물의 고유진동수와 일치될 경우(공진현상), 과도한 진동이 발생 된다. If the periodic force in the structure coincides with the natural frequency of the structure (resonance phenomenon), excessive vibration occurs.

이와 같은 공진현상에 의한 과도진동을 방지하기 위해 고안된 동흡진기(100는 구조물(Pump)의 고유진동수와 일치하는 진동시스템을 갖추게 되며 구조물이 기진원에 의해 진동할 경우, 구조물의 진동방향의 역방향으로 동흡진기(100)가 진동함으로써 구조물의 진동을 흡수하는 역할을 하게 된다. 따라서 동흡진기(100)의 고유진동수를 설계해야하는 데, 고유진동수에 관련되는 이론적인 관련 요소가 스프링 과 무게이며 스프링바(20)와 무게추(30)가 그 구성요소가 된다. The dynamic oscillator 100, which is designed to prevent the excessive vibration caused by the resonance phenomenon, has a vibration system that matches the natural frequency of the structure. When the structure vibrates due to the source of vibration, the vibration direction of the structure is reversed. The vibration of the vibration reducer 100 serves to absorb the vibration of the structure, therefore, it is necessary to design the natural frequency of the vibration reducer 100. The theoretical related factors related to the natural frequency are spring and weight and spring bar ( 20 and the weight 30 are its components.

즉, 고유진동수 (Hz) = 1/(2π) √(Stiffness/Mass) 로 이루어지며 스프링바(20)의 단면과 길이, 무게추(30)의 질량에 의해 고유진동수를 결정하게 된다. That is, the natural frequency (Hz) = 1 / (2π) √ (Stiffness / Mass) and the natural frequency is determined by the cross section and length of the spring bar 20, the mass of the weight (30).

본 고안의 바람직한 실시예를 참조하여 설명하였지만 해당 기술분야의 숙련된 당업자라면 하기의 청구범위에 기재된 고안의 사상 및 영역으로부터 벗어나지 않는 범위내에서 본 고안을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.Although described with reference to a preferred embodiment of the present invention, those skilled in the art can understand that the present invention can be variously modified and changed without departing from the spirit and scope of the invention described in the claims below. There will be.

이상에서 살펴본 바와 같이 본 고안은 종래에 구조적인 보강방법으로는 적용할 수 없는 선박 탑재 장비의 진동문제 해결에 적용 가능하고 설치 및 조정이 용이하여 시간이 절감되며 제작 비용이 절감되는 효과가 있다.As described above, the present invention can be applied to solving the vibration problem of the ship-mounted equipment, which is not applicable to the conventional structural reinforcement method, and is easy to install and adjust, thereby saving time and reducing manufacturing costs.

Claims (4)

동흡진기(100)에 있어서,In the copper reducer 100, 어댑터(10)와;An adapter 10; 상기 어댑터(10)의 중앙 외측에 고정되는 스프링바(20)와;A spring bar 20 fixed to the center outside of the adapter 10; 상기 스프링바(20)에 결합된 무게추(30)를; 포함하여 구성되고,A weight 30 coupled to the spring bar 20; Is configured to include, 상기 어댑터(10)는,The adapter 10, 본체(11)와, 상기 본체(11) 양측으로 결합홀(13)이 형성된 지지대(12)로 이루어지고 결합홀(13)에 볼트(131)와 너트(132)의 체결로 양측으로 대향되게 설치되며,It consists of a main body 11 and a support 12 having a coupling hole 13 formed on both sides of the main body 11 and installed oppositely to both sides by fastening the bolt 131 and the nut 132 to the coupling hole 13. , 상기 무게추(30)는,The weight 30 is, 관통된 원형홀(31)에 스프링바(20)가 이동가능토록 결합된 것을 특징으로 하는 선박 탑재 장비용 동흡진기.The copper reducer for shipboard equipment, characterized in that the spring bar 20 is coupled to the penetrated circular hole 31 to be movable. 삭제delete 삭제delete 삭제delete
KR2020070008874U 2007-05-30 2007-05-30 A study on the tuneable vibration absorber for on-board equipment KR200442008Y1 (en)

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