KR20160069636A - Horizontal loading device based on offshore wind power substructure for centrifuge model experiment - Google Patents

Horizontal loading device based on offshore wind power substructure for centrifuge model experiment Download PDF

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KR20160069636A
KR20160069636A KR1020140175437A KR20140175437A KR20160069636A KR 20160069636 A KR20160069636 A KR 20160069636A KR 1020140175437 A KR1020140175437 A KR 1020140175437A KR 20140175437 A KR20140175437 A KR 20140175437A KR 20160069636 A KR20160069636 A KR 20160069636A
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wire
weights
horizontal
load
frame
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KR1020140175437A
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Korean (ko)
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김인규
김유석
배경태
이종필
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(주)대우건설
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D33/00—Testing foundations or foundation structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/934—Electrical process
    • Y10S428/935—Electroplating

Abstract

The present invention relates to a horizontal loading device for a centrifugal model experiment based on marine wind force, comprising: a chamber in which earth and sand are loaded, and a space part is formed such that a base is embedded, and whose top surface is opened; a frame coupled to an upper part of the chamber; weights installed on both sides of the frame, respectively, to be vertically ascended and descended; a rotary motor installed on an upper part of the frame; a first wire whose one end is connected to the weights, respectively; cam members which are fixed to a rotary shaft of the rotary motor, and are connected to the other end of the first wire, respectively, to alternately ascend and descend the weights in accordance with rotation of the rotary motor; fixed pulleys installed on both sides of the frame, respectively, to guide the first wire; a second wire whose one end is connected to the weights, respectively, the other end is connected to both ends of the base embedded in the chamber, respectively; movable pulleys installed on lower parts of the fixed pulleys, respectively, to guide the second wire; and a horizontal rail which leads a load gage and the second wire to be horizontal to each other. According to the present invention, the identical weights are connected to both ends of the base using the wires. In addition, identical horizontal load is repetitively applied by rotating the cam in a state that each of the weights is connected to the cam coupled to the rotary motor by the wires again. Also, the load gage is positioned on the horizontal rail. Thus, accurate experimental data may be provided.

Description

원심모형실험용 해상풍력기초 수평재하 장치{HORIZONTAL LOADING DEVICE BASED ON OFFSHORE WIND POWER SUBSTRUCTURE FOR CENTRIFUGE MODEL EXPERIMENT}{HORIZONTAL LOADING DEVICE BASED ON OFFSHORE WIND POWER SUBSTRUCTURE FOR CENTRIFUGE MODEL EXPERIMENT}

본 발명은 해상풍력 실험용 해상풍력 기초의 반복 하중 장치에 관한 것으로서, 상세하게는 기초의 양측에 각각의 무게추를 와이어로 캠에 연결시킨 상태에서 캠을 회전시켜 기초의 양측에서 동일한 수평하중을 반복적으로 가하도록 하는 실험용 해상풍력 기초의 반복 하중 장치에서 와이어의 장력을 정확하게 측정하는 기구에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cyclic loading device for offshore wind force testing offshore wind power, To an apparatus for precisely measuring the tension of a wire in a cyclic loading apparatus for an offshore wind force based test.

해상풍력발전은 풍력터빈을 연안과 같은 수역에 설치하여 그 곳에서 부는 바람의 운동에너지를 회전날개에 의한 기계에너지로 변환하여 전기를 얻는 발전방식을 말한다.Offshore wind power generation refers to a power generation system in which a wind turbine is installed in a water body such as a coast, and the kinetic energy of the wind blowing there is converted into mechanical energy by a rotary wing to obtain electricity.

해상풍력발전의 장점으로는 육상풍력발전의 경우 설치 부지의 한계가 있다. 이에 비하여 해상은 부지확보가 양호해 대규모 풍력발전단지 조성이 가능하다.The merits of offshore wind power generation are limited in the installation site for offshore wind power generation. On the other hand, it is possible to construct a large-scale wind power generation complex with good land acquisition.

또한, 해상은 장애물의 감소로 바람의 난류와 높이나 방향에 따른 풍속변화가 적기 때문에 유사 조건의 육상풍력발전에 비해 상대적으로 낮은 피로하중으로 약 1.5~2배의 높은 발전량을 유지할 수 있고, 해상풍력발전의 경우 해안과 떨어져 설치되기 때문에 풍력터빈의 대형화로 인하여 발생되는 소음과 시각적인 위압감 같은 문제를 해소할 수 있다.In addition, due to the reduction of obstacles, the sea level can be maintained to be 1.5 ~ 2 times higher than that of land-based wind power generation under similar conditions due to less turbulence of wind and change of wind speed according to its height or direction. In the case of power generation, since it is installed off the coast, problems such as noise caused by the enlargement of the wind turbine and visual over-pressure can be solved.

한편, 이러한 기초는 풍력과 파랑하중에 의해 큰 크기의 반복수평하중을 받는 데, 기초의 적합성을 판별하기위해서는 해상환경에서의 정확한 반복수평하중 계산이 필요하다.On the other hand, these bases are subjected to repeated horizontal loads of a large size by wind and wave loads, and it is necessary to calculate accurate horizontal loads in the marine environment in order to determine the suitability of the foundation.

이러한 반복수평하중 계산을 위해 국내 특허인 “캠구조를 사용한 모형실험용 해상풍력기초 반복 수평재하 장치(특허번호 10-1207199)”에 말뚝의 거동 특성을 시험하기 위한 장치가 개발되었다.In order to calculate the repeated horizontal load, a device for testing the behavior characteristics of the pile was developed in the domestic patent "Onboard Wind Turbine Reciprocating Lateral Loading Apparatus for Model Test Using Cam Structure (Patent No. 10-1207199)".

즉, 지반에서 반복수평하중을 받는 말뚝의 거동 특성을 조사하기 위해서 시험장치로 토조와 실험말뚝과, 수평하중의 측정을 위해 무게추와 연결된 와이어의 단부에는 하중계(load cell)를 설치한 형태로 결합시키는 구성이 개시되었다.In order to investigate the characteristics of the pile subjected to repeated horizontal loads in the ground, test equipment and test pile were installed and a load cell was installed at the end of the wire connected to the weight to measure horizontal load. A configuration for coupling is disclosed.

그러나, 이러한 종래의 시험장치는 원심모형실험에서 하중계(load cell)의 무게가 주어진 가속도에 따라 무거워져 아래로 처짐으로 인하여 정확한 측정이 어려운 문제점이 있었다.However, such a conventional test apparatus has a problem that in the centrifugal model test, the weight of the load cell becomes heavy according to the given acceleration, and it is difficult to accurately measure due to the downward deflection.

1. 캠구조를 사용한 모형실험용 해상풍력기초 반복 수평재하 장치(10-1207199)1. On-offwheel wind-based baseline repeater horizontal loading device for model test using cam structure (10-1207199)

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 기초의 양측에 와이어를 이용하여 동일한 무게추를 각각 연결하고, 각각의 무게추를 다시 와이어로 회전 모터에 결합된 캠에 연결시킨 상태에서 캠을 회전시켜 기초의 양측에서 동일한 수평하중을 반복적으로 가하도록 하며, 원심가속도로 인하여 하중계가 아래로 처짐을 방지하기 위하여 하중계를 레일위에 설치하여 처짐을 방지하는 실험용 해상풍력 기초의 반복 하중 장치를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of connecting a cam, To provide a repetitive load device for offshore wind turbine based on rotation so that the same horizontal load is repeatedly applied on both sides of the foundation and the load system is mounted on the rail to prevent sagging due to centrifugal acceleration It has its purpose.

상기와 같은 목적을 달성하기 위한 본 발명의 특징은,According to an aspect of the present invention,

토사가 내부에 적재되고, 기초가 근입 되도록 내부에 공간부가 형성되고, 상면이 개방된 토조와; 상기 토조의 상부에 결합되는 프레임과; 상기 프레임의 양측면에서 각각 상하로 승하강되도록 설치되는 무게추와; 상기 프레임의 상부에 설치되는 회전 모터와; 상기 무게추와 일단이 각각 연결되는 제 1와이어와; 상기 회전 모터의 회전축에 고정되고, 상기 제 1와이어의 타단이 각각 연결되어 상기 회전 모터의 회전에 따라 상기 무게추를 교대로 승하강시키는 캠 부재와; 말뚝에 연결된 제 2와이어에 연결된 하중계로 이루어지는 것을 특징으로 한다.A toe which is formed on the inside and has a top surface opened so that the soil is piled up inside, a base is inserted; A frame coupled to an upper portion of the toe; A weighing weight installed vertically up and down on both sides of the frame; A rotation motor installed at an upper portion of the frame; A first wire connected to the weight and a first end, respectively; A cam member fixed to a rotary shaft of the rotary motor and connected to the other ends of the first wires so as to alternately raise and lower the weight in accordance with rotation of the rotary motor; And a load system connected to the second wire connected to the pile.

여기에서, 상기 하중계는 레일 고정대 위에 설치된다.Here, the load meter is installed on a rail fixing table.

여기에서 또한, 레일 고정대 위에는 하중계를 수평이동시킬 수 있도록 수평레일이 놓이고 하중계체결기구가 하중계 양 끝단에 설치된다.Here, on the rail fixing table, horizontal rails are placed so as to move the load meter horizontally, and load weight fixing devices are installed at both ends of the load scale.

여기에서 또, 하중계체결기구는 한 쪽은 말뚝상단과 다른 한 쪽은 무게추에 각각 연결되도록 설치된다.Here, the load-weight fastening mechanism is installed so that one end is connected to the upper end of the pile and the other end is connected to the weight.

상기와 같이 구성되는 본 발명인 실험용 해상풍력 기초의 반복 하중 장치에 따르면, 기초의 양측에 와이어를 이용하여 동일한 무게추를 각각 연결하고, 각각의 무게추를 다시 와이어로 회전 모터에 결합된 캠에 연결시킨 상태에서 캠을 회전시켜 기초의 양측에서 동일한 수평하중을 반복적으로 가하도록 하고, 하중계가 제 2와이어와 수평을 이루도록 하여 정확한 수평력을 제공할 수 있다.According to the present invention, the same weight weight is connected to both sides of a foundation by using wires, and each weight is connected to a cam coupled to a rotary motor by wires. The cam is rotated so that the same horizontal load is repeatedly applied on both sides of the base, and the load meter is aligned with the second wire to provide an accurate horizontal force.

도 1은 본 발명에 따른 실험용 해상풍력 기초의 반복 하중 장치의 구성을 나타낸 정면도이다.
도 2는 본 발명에 따른 수평레일이 설치된 하중계의 구성을 나타낸 정면도이다.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a configuration of a cyclic loading device for an offshore wind turbine foundation according to the present invention; FIG.
2 is a front view showing the construction of a load meter provided with a horizontal rail according to the present invention.

이하, 본 발명에 따른 모형실험용 해상풍력 기초의 반복 하중 장치의 구성을 첨부된 도면을 참조하여 상세하게 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the structure of a cyclic loading device for offshore wind force for model testing according to the present invention will be described in detail with reference to the accompanying drawings.

하기에서 본 발명을 설명함에 있어, 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명은 생략할 것이다. 그리고 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례 등에 따라 달라질 수 있다. 그러므로 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

도 1은 본 발명에 따른 실험용 해상풍력 기초의 반복 하중 장치의 구성을 나타낸 정면도이며, 도 2는 정확한하중측정을 위한 수평레일을 사용한 모형실험용 해상풍력기초 반복 수평재하장치의 구성을 나타낸 정면도이다.FIG. 1 is a front view showing a configuration of a cyclic loading device for offshore wind turbine according to the present invention, and FIG. 2 is a front view showing the configuration of a rotary cyclic loading device for offshore wind turbine using a horizontal rail for accurate load measurement.

도 1 내지 도 2를 참조하면 원심모형실험에 따른 가속도 증가로 인하여 하중계(S1)의 처짐을 방지하기 위하여 레일고정대(140)와, 수평레일(150)과, 하중계를 수평레일에 고정시키는 하중계체결기구(160)와, 가동풀리(90)와, 제2와이어(80)로 구성된다.1 and 2, in order to prevent the sagging of the load cell S1 due to acceleration due to the centrifugal model test, a rail fixing table 140, a horizontal rail 150 and a load system for fixing the load system to the horizontal rail A mechanism 160, a movable pulley 90, and a second wire 80.

10 : 토조 20 : 프레임
30 : 무게추 50 : 제 1와이어
70 : 고정 풀리 80 : 제 2와이어
90 : 가동 풀리 100 : 기초
140 : 레일 고정대 150 : 수평레일
160 : 하중계체결기구 S1 : 하중계10: frame 20: frame
30: weight increment 50: first wire
70: stationary pulley 80: second wire
90: movable pulley 100: foundation
140: rail holder 150: horizontal rail
160: Load system fastening mechanism S1: Load cell

Claims (1)

토사가 내부에 적재되고, 기초가 근입되도록 내부에 공간부가 형성되고, 상면이 개방된 토조와;
상기 토조의 상부에 결합되는 하중계고정대와;
상기 하중계 위에 설치되는 수평레일과;
상기 수평레일 위에 설치되는 하중계체결장치; 및
상기 상기 하중계체결장치에 체결되는 하중계로 이루어지는 것을 특징으로 하는 실험용 해상풍력 기초의 반복 하중 장치.A toe which is formed on the inside and has a top surface opened so that the soil is piled up inside, a base is inserted;
A loadmeter fixed to the upper portion of the toe;
A horizontal rail installed on the load system;
A load system fastening device installed on the horizontal rail; And
And a load system fastened to the load system fastening device.
KR1020140175437A 2014-12-09 2014-12-09 Horizontal loading device based on offshore wind power substructure for centrifuge model experiment KR20160069636A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088169A (en) * 2016-07-26 2016-11-09 浙江大学 Multiple degrees of freedom CYCLIC LOADING device for offshore wind turbine foundation laboratory test research
CN109723091A (en) * 2017-10-27 2019-05-07 中国海洋大学 A kind of experimental provision measuring three spud leg wave loadings of drilling platforms
CN110550559A (en) * 2019-08-20 2019-12-10 南京海天检测有限公司 Portal crane performance detection device
KR102372930B1 (en) * 2020-11-06 2022-03-10 울산대학교 산학협력단 Real­sea wind realization device for floating offshore wind turbine model test

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KR101207199B1 (en) 2012-06-11 2012-12-03 재단법인 포항산업과학연구원 Horizontal cyclic loading device based on offshore wind power substructure for model experiment by using cam structure

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106088169A (en) * 2016-07-26 2016-11-09 浙江大学 Multiple degrees of freedom CYCLIC LOADING device for offshore wind turbine foundation laboratory test research
CN106088169B (en) * 2016-07-26 2018-05-01 浙江大学 Multiple degrees of freedom CYCLIC LOADING device for offshore wind turbine foundation laboratory test research
CN109723091A (en) * 2017-10-27 2019-05-07 中国海洋大学 A kind of experimental provision measuring three spud leg wave loadings of drilling platforms
CN109723091B (en) * 2017-10-27 2024-02-20 中国海洋大学 Experimental device for measuring wave current load of three spud legs of drilling platform
CN110550559A (en) * 2019-08-20 2019-12-10 南京海天检测有限公司 Portal crane performance detection device
CN110550559B (en) * 2019-08-20 2020-08-11 南京海天检测有限公司 Portal crane performance detection device
KR102372930B1 (en) * 2020-11-06 2022-03-10 울산대학교 산학협력단 Real­sea wind realization device for floating offshore wind turbine model test

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