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CN114518214A - Semi-submersible type ocean platform test simulation device - Google Patents

Semi-submersible type ocean platform test simulation device Download PDF

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CN114518214A
CN114518214A CN202210248695.XA CN202210248695A CN114518214A CN 114518214 A CN114518214 A CN 114518214A CN 202210248695 A CN202210248695 A CN 202210248695A CN 114518214 A CN114518214 A CN 114518214A
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sand
model body
bar
platform model
simulation
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CN114518214B (en
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吕劲
冯猛
张秀林
张�林
易涤非
梁海波
张湘跃
陈土顺
袁征
姜�硕
刘康
陈国明
彭卫芳
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China National Offshore Oil Corp CNOOC
CNOOC China Ltd Hainan Branch
CNOOC Guangdong Safety and Health Technology Co Ltd
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China National Offshore Oil Corp CNOOC
CNOOC China Ltd Hainan Branch
CNOOC Guangdong Safety and Health Technology Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M10/00Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels

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Abstract

The invention discloses a semi-submersible type ocean platform test simulation device, and relates to the technical field of semi-submersible type ocean platform test simulation. The grating sensor type platform model comprises a platform model body, wherein the platform model body comprises a buoy, a stand column and a top supporting plate, a grating sensor is distributed on the platform model body, and a bearing box is arranged outside the platform model body; the bearing box is loaded with simulation sand; a wave simulation mechanism is arranged in the bearing box; an anti-settling mechanism is arranged below the wave simulation mechanism; the wave simulation mechanism comprises transverse slide rails which are respectively fixed on the front side and the rear side of the inner wall of the bearing box along the left-right direction, and longitudinal slide rails which are respectively fixed on the left side and the right side of the inner wall of the bearing box along the front-rear direction. The invention has the beneficial effects that: the flow of sand simulates the load condition of sea waves, the simulation effect is comprehensive, the support performance of the platform model body is good, and the arrangement is convenient and low in cost.

Description

一种半潜式海洋平台试验模拟装置A semi-submersible offshore platform test simulation device

技术领域technical field

本发明涉及半潜式海洋平台试验模拟技术领域。The invention relates to the technical field of semi-submersible marine platform test simulation.

背景技术Background technique

海洋平台是海上进行勘探、钻探、采油、集运、观测、施工等活动提供生产和生活设施的构筑物,半潜式平台作为常用的海洋平台的一种,具有作业水深范围广、水线面面积小、抵抗风浪能力强和可变载荷大等优点,然而由于半潜式海洋平台作为一种悬浮在海洋上的结构形式,需要考虑其在受到波浪冲击时的结构稳定性,因此通常情况下会在陆地环境中设置相应的模拟装置,来近似模拟海洋平台在波浪作用下的结构响应。An offshore platform is a structure that provides production and living facilities for activities such as exploration, drilling, oil production, container transportation, observation, and construction at sea. , strong resistance to wind and waves, and large variable loads. However, as a semi-submersible offshore platform is a structural form suspended on the ocean, it needs to consider its structural stability when it is impacted by waves. A corresponding simulation device is set up in the land environment to approximate the structural response of the marine platform under the action of waves.

目前在对海洋平台模型施加波浪载荷的模拟功能时,通常是使用起重装置将平台模型吊起,使其处于悬浮状态;底部采用一排细长的圆柱来支撑平台模型,降低与地面之间的摩擦力,来模拟海洋平台与海水之间的接触,使其更加接近于水中约束条件;采用钢丝绳-弹簧的方式对平台模型约束,来模拟系泊装置;通过控制液压加载系统来模拟不同工况;使用光栅传感器监测平台各处结构应力。然而这种方式布设复杂,成本高,而且对海洋波浪载荷的模拟效果不全面。虽然还有一种将平台模型放置在水中进行模拟的方式,但是这种方式为了确保平台模型能够在水中悬浮,对平台模型各处的密封性要求较高(比如浮筒、立柱等处的密封),增加了成本,而且不易有效地模拟各种海况,导致模拟效果无法达到要求。At present, when applying the wave load simulation function to the offshore platform model, the platform model is usually hoisted with a lifting device to make it in a suspended state; a row of slender cylinders are used at the bottom to support the platform model, and the distance between the platform model and the ground is lowered. The friction force is used to simulate the contact between the offshore platform and the sea water, making it closer to the constraint conditions in the water; the platform model is constrained by wire rope-spring to simulate the mooring device; the hydraulic loading system is controlled to simulate different working conditions. Condition; use grating sensors to monitor structural stress throughout the platform. However, the layout of this method is complicated, the cost is high, and the simulation effect of ocean wave load is not comprehensive. Although there is another way to place the platform model in the water for simulation, in order to ensure that the platform model can be suspended in the water, this method requires higher sealing performance (such as the sealing of buoys, uprights, etc.) around the platform model. It increases the cost, and it is not easy to effectively simulate various sea conditions, resulting in the simulation effect failing to meet the requirements.

发明内容SUMMARY OF THE INVENTION

本发明所要解决的技术问题,是针对上述存在的技术不足,提供一种半潜式海洋平台试验模拟装置,其通过沙子的流动来模拟海浪的载荷情况,模拟效果全面,而且对平台模型本体的支撑性好,布设起来方便、成本低。The technical problem to be solved by the present invention is to provide a semi-submersible marine platform test simulation device for the above-mentioned technical deficiencies, which simulates the load situation of ocean waves through the flow of sand, and the simulation effect is comprehensive. The utility model has good support, convenient layout and low cost.

本发明采用的技术方案是:提供一种半潜式海洋平台试验模拟装置,包括平台模型本体,平台模型本体包括浮筒、立柱、顶部支撑板,平台模型本体上布设有光栅传感器,平台模型本体外设置有承载箱;承载箱内装载有模拟用沙;承载箱内设置有波浪模拟机构;波浪模拟机构下方设置有防沉降机构;The technical scheme adopted in the present invention is to provide a semi-submersible marine platform test simulation device, which includes a platform model body, the platform model body includes a buoy, a column and a top support plate, a grating sensor is arranged on the platform model body, and the platform model body is outside the platform model body. A bearing box is arranged; the bearing box is loaded with sand for simulation; a wave simulation mechanism is arranged in the bearing box; an anti-settling mechanism is arranged below the wave simulation mechanism;

所述的波浪模拟机构包括沿左右方向分别固定在承载箱内壁前后两侧的横向滑轨、沿前后方向分别固定在承载箱内壁左右两侧的纵向滑轨;纵向滑轨设置在横向滑轨下方;两个横向滑轨之间沿前后方向设置有横推条;两个纵向滑轨之间沿左右方向设置有纵推条;横推条和纵推条均呈凸弧形结构;横推条前后两端分别固定有横向滑条;纵推条左右两端分别固定有纵向滑条;横向滑条分别与横向滑轨对应滑动连接;纵向滑条分别与纵向滑轨对应滑动连接;横向滑条左右两端分别滑动贯穿承载箱的左右两侧;纵向滑条前后两端分别滑动贯穿承载箱的前后两端;两根横向滑条同侧端部之间和两根纵向滑条同侧端部之间分别通过挡条连接;The wave simulation mechanism includes transverse slide rails respectively fixed on the front and rear sides of the inner wall of the carrying box along the left and right directions, and longitudinal slide rails respectively fixed on the left and right sides of the inner wall of the carrying box along the front and rear directions; the longitudinal slide rails are arranged below the transverse slide rails ; A transverse push bar is arranged along the front and rear directions between the two transverse slide rails; a longitudinal push bar is arranged along the left and right directions between the two longitudinal slide rails; the transverse push bar and the longitudinal push bar are both convex arc structures; the transverse push bar The front and rear ends are respectively fixed with transverse slide bars; the left and right ends of the longitudinal push bar are respectively fixed with longitudinal slide bars; The left and right ends slide through the left and right sides of the carrying box respectively; the front and rear ends of the longitudinal slide bar slide through the front and rear ends of the carrying box respectively; They are connected by retaining bars respectively;

所述的防沉降机构包括设置在承载箱底部且分别与承载箱四壁对应平行的聚沙条;聚沙条呈三棱柱形结构且聚沙条内侧面与底面之间的夹角不小于90°;聚沙条外侧面固定有导向杆;导向杆垂直贯穿对应的承载箱侧壁;承载箱外壁固定有一一对应滑动套接在导向杆外的支撑套;导向杆外端固定有挡板;当支撑套一一对应将挡板阻挡时,聚沙条互不接触。The anti-settling mechanism includes sand collecting strips arranged at the bottom of the carrying box and corresponding to the four walls of the carrying box respectively; °; a guide rod is fixed on the outer side of the sand collecting strip; the guide rod vertically penetrates the corresponding side wall of the bearing box; the outer wall of the bearing box is fixed with a support sleeve that is slidably sleeved outside the guide rod; a baffle is fixed on the outer end of the guide rod ; When the support sleeves block the baffle in one-to-one correspondence, the sand gathering strips do not touch each other.

所述的横推条、纵推条和聚沙条分别与独立的动力机构联动。The horizontal push bar, vertical push bar and sand gathering bar are respectively linked with independent power mechanisms.

进一步优化本技术方案,一种半潜式海洋平台试验模拟装置的动力机构为液压缸。To further optimize the technical solution, the power mechanism of a semi-submersible offshore platform test simulation device is a hydraulic cylinder.

进一步优化本技术方案,一种半潜式海洋平台试验模拟装置的动力机构为电动推杆。To further optimize the technical solution, a power mechanism of a semi-submersible marine platform test simulation device is an electric push rod.

进一步优化本技术方案,一种半潜式海洋平台试验模拟装置的聚沙条为壳状结构;聚沙条内侧面分布有气孔;气孔外部均对应覆盖有橡胶挡片;橡胶挡片上端与聚沙条固定;聚沙条通过导气管与外界气源连接。The technical scheme is further optimized. The sand collecting strip of a semi-submersible offshore platform test simulation device is a shell-like structure; air holes are distributed on the inner side of the sand collecting strip; The sand bar is fixed; the sand gathering bar is connected with the external air source through the air duct.

本发明的有益效果在于:The beneficial effects of the present invention are:

1、承载箱内装载模拟用的沙子,能够将平台模型本体置于沙子上,通过沙子能够对其有效支撑,模拟平台模型本体在海水中悬浮的状态,无需施加外界起吊装置,降低操作难度、布设起来更方便,而且与在水中悬浮对平台模型本体的要求相比,使用沙子对平台模型本体的密封性要求不高,降低了成本。1. The sand for simulation is loaded in the carrying box, and the platform model body can be placed on the sand, which can be effectively supported by the sand to simulate the suspended state of the platform model body in seawater, without the need to apply an external lifting device, reducing the difficulty of operation, The layout is more convenient, and compared with the requirements for the platform model body to be suspended in water, the use of sand does not require high sealing performance for the platform model body, which reduces the cost.

横推条沿前后方向设置,横推条前后两端分别固定有横向滑条,横向滑条与横向滑轨对应滑动连接,纵推条沿左右方向设置,纵推条左右两端分别固定有纵向滑条,纵向滑条与纵向滑轨对应滑动连接,横推条和纵推条均呈凸弧形结构,通过横推条和纵推条的滑动,能够带动沙子起伏,从而有效模拟起伏的波浪,横推条和纵推条能够分别模拟左右方向和前后方向的波浪,并且两者同时运动还可模拟两个方向的波浪发生冲击的情况,对波浪状况的模拟效果更全面。The transverse push bars are arranged in the front and rear directions, the front and rear ends of the transverse push bars are respectively fixed with transverse slide bars, and the transverse slide bars and the transverse slide rails are correspondingly slidably connected. The slider, the longitudinal slider and the longitudinal slider are connected correspondingly. Both the horizontal and vertical sliders have a convex arc structure. Through the sliding of the horizontal and vertical sliders, the sand can be driven to undulate, thereby effectively simulating the undulating waves. , the horizontal push bar and the vertical push bar can simulate the waves in the left and right directions and the front and rear directions respectively, and the simultaneous movement of the two can also simulate the impact of the waves in the two directions, and the simulation effect of the wave conditions is more comprehensive.

聚沙条分别对应平行设置在承载箱底部四壁,聚沙条通过垂直贯穿承载箱侧壁的导向杆的滑动,能够相互聚拢,并且聚沙条呈三棱柱形结构且聚沙条内侧面与底面之间的夹角不小于90°,从而随着聚沙条相互聚拢能够实现将沙子向中部聚积的效果,避免平台模型本体在沙子内一直沉降的情况发生。The sand-gathering strips are respectively arranged in parallel on the four walls of the bottom of the carrying box. The sand-gathering strips can be gathered together through the sliding of the guide rods vertically running through the side walls of the carrying box. The included angle between the bottom surfaces is not less than 90°, so that as the sand gathering strips gather with each other, the effect of accumulating the sand in the middle can be achieved, avoiding the situation that the platform model body has been settling in the sand.

2、聚沙条为壳状结构,聚沙条内侧面分布有气孔,聚沙条通过导气管与外界气源连接,通过气孔吹气能够减轻聚沙条移动时的阻力,便于其更快的移动;气孔外部均对应覆盖有橡胶挡片,橡胶挡片上端与聚沙条固定,橡胶挡片能够起到对沙子的阻挡作用,有效减少沙子从气孔倒灌进聚沙条内部的情况发生。2. The sand-gathering strip has a shell-like structure. There are air holes on the inner side of the sand-gathering bar. The sand-gathering bar is connected to the external air source through the air duct. Move; the outside of the air holes are covered with rubber baffles, and the upper end of the rubber baffles is fixed with the sand-gathering strips. The rubber baffles can block the sand and effectively reduce the occurrence of sand pouring into the sand-gathering strips from the air holes.

附图说明Description of drawings

图1为本发明的结构示意图;Fig. 1 is the structural representation of the present invention;

图2为平台模型本体的结构示意图;Fig. 2 is the structural representation of platform model ontology;

图3为波浪模拟机构的结构示意图;Fig. 3 is the structural representation of wave simulation mechanism;

图4为防沉降机构的结构示意图;Fig. 4 is the structural representation of the anti-settling mechanism;

图5为聚沙条处的结构示意图。FIG. 5 is a schematic diagram of the structure of the sand gathering strip.

图中,1、平台模型本体;2、浮筒;3、立柱;4、顶部支撑板;5、光栅传感器;6、承载箱;7、横向滑轨;8、纵向滑轨;9、横推条;10、纵推条;11、横向滑条;12、纵向滑条;13、挡条;14、聚沙条;15、导向杆;16、挡板;17、支撑套;18、动力机构;19、气孔;20、橡胶挡片;21、导气管。In the figure, 1. Platform model body; 2. Float; 3. Upright column; 4. Top support plate; 5. Grating sensor; 6. Carrying box; 7. Transverse rail; 8. Longitudinal rail; ;10, vertical push bar; 11, horizontal slide bar; 12, longitudinal slide bar; 13, stop bar; 14, sand gathering bar; 15, guide rod; 16, baffle plate; 17, support sleeve; 18, power mechanism; 19. Air hole; 20. Rubber baffle; 21. Airway.

具体实施方式Detailed ways

下面结合附图和具体实施方式对本发明作进一步详细的说明。The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

如图1-2所示,一种半潜式海洋平台试验模拟装置,包括平台模型本体1,平台模型本体1包括浮筒2、立柱3、顶部支撑板4,平台模型本体1上布设有光栅传感器5,平台模型本体1外设置有承载箱6;承载箱6内装载有模拟用沙;承载箱6内设置有波浪模拟机构;波浪模拟机构下方设置有防沉降机构。As shown in Figure 1-2, a semi-submersible offshore platform test simulation device includes a platform model body 1, the platform model body 1 includes a buoy 2, a column 3, a top support plate 4, and a grating sensor is arranged on the platform model body 1 5. A bearing box 6 is arranged outside the platform model body 1; the bearing box 6 is loaded with sand for simulation; a wave simulation mechanism is arranged in the bearing box 6; an anti-settling mechanism is arranged below the wave simulation mechanism.

如图3所示,所述的波浪模拟机构包括沿左右方向分别固定在承载箱6内壁前后两侧的横向滑轨7、沿前后方向分别固定在承载箱6内壁左右两侧的纵向滑轨8;纵向滑轨8设置在横向滑轨7下方;两个横向滑轨7之间沿前后方向设置有横推条9;两个纵向滑轨8之间沿左右方向设置有纵推条10;横推条9和纵推条10均呈凸弧形结构;横推条9前后两端分别固定有横向滑条11;纵推条10左右两端分别固定有纵向滑条12;横向滑条11分别与横向滑轨7对应滑动连接;纵向滑条12分别与纵向滑轨8对应滑动连接;横向滑条11左右两端分别滑动贯穿承载箱6的左右两侧;纵向滑条12前后两端分别滑动贯穿承载箱6的前后两端;两根横向滑条11同侧端部之间和两根纵向滑条12同侧端部之间分别通过挡条13连接。As shown in FIG. 3 , the wave simulation mechanism includes transverse slide rails 7 respectively fixed on the front and rear sides of the inner wall of the carrying box 6 along the left and right directions, and longitudinal slide rails 8 respectively fixed on the left and right sides of the inner wall of the carrying box 6 along the front and rear directions. The longitudinal slide rail 8 is arranged below the transverse slide rail 7; between the two transverse slide rails 7, a transverse push bar 9 is provided along the front and rear directions; Both the push bar 9 and the longitudinal push bar 10 are in the shape of a convex arc; the front and rear ends of the transverse push bar 9 are respectively fixed with transverse slide bars 11; the left and right ends of the longitudinal push bar 10 are respectively fixed with longitudinal slide bars 12; Corresponding sliding connection with the transverse sliding rail 7; longitudinal sliding bar 12 corresponding sliding connection with the longitudinal sliding rail 8 respectively; the left and right ends of the transverse sliding bar 11 slide through the left and right sides of the carrying box 6 respectively; It runs through the front and rear ends of the carrying box 6 ; the ends on the same side of the two transverse sliding bars 11 and the ends on the same side of the two longitudinal sliding bars 12 are connected by the blocking bars 13 respectively.

如图4-5所示,所述的防沉降机构包括设置在承载箱6底部且分别与承载箱6四壁对应平行的聚沙条14;聚沙条14呈三棱柱形结构且聚沙条14内侧面与底面之间的夹角不小于90°;聚沙条14外侧面固定有导向杆15;导向杆15垂直贯穿对应的承载箱6侧壁;承载箱6外壁固定有一一对应滑动套接在导向杆15外的支撑套17;导向杆15外端固定有挡板16;当支撑套17一一对应将挡板16阻挡时,聚沙条14互不接触。As shown in Figures 4-5, the anti-settling mechanism includes sand collecting strips 14 arranged at the bottom of the carrying box 6 and correspondingly parallel to the four walls of the carrying box 6; 14 The angle between the inner side and the bottom surface is not less than 90°; a guide rod 15 is fixed on the outer side of the sand collecting strip 14; the guide rod 15 vertically penetrates the corresponding side wall of the carrying box 6; The support sleeve 17 is sleeved outside the guide rod 15; the outer end of the guide rod 15 is fixed with a baffle plate 16; when the support sleeve 17 blocks the baffle plate 16 in one-to-one correspondence, the sand collecting strips 14 do not contact each other.

所述的横推条9、纵推条10和聚沙条14分别与独立的动力机构18联动;所述的动力机构18为液压缸;所述的动力机构18为电动推杆;聚沙条14为壳状结构;聚沙条14内侧面分布有气孔19;气孔19外部均对应覆盖有橡胶挡片20;橡胶挡片20上端与聚沙条14固定;聚沙条14通过导气管21与外界气源连接。The horizontal push bar 9, the vertical push bar 10 and the sand gathering bar 14 are respectively linked with an independent power mechanism 18; the power mechanism 18 is a hydraulic cylinder; the power mechanism 18 is an electric push rod; 14 is a shell-like structure; air holes 19 are distributed on the inner side of the sand collecting strip 14; the outside of the air holes 19 is correspondingly covered with a rubber baffle 20; External air source connection.

承载箱6内事先装好模拟用沙(波浪模拟机构和防沉降机构被沙子掩埋),将平台模型本体1放置于承载箱6内的沙子上即可,通过沙子的有效支撑,即可有效模拟海洋平台在海中悬浮的状态。The carrying box 6 is pre-installed with sand for simulation (the wave simulation mechanism and the anti-settling mechanism are buried by sand), and the platform model body 1 can be placed on the sand in the carrying box 6. With the effective support of the sand, the simulation can be effectively simulated. The state of an offshore platform suspended in the sea.

当需要模拟波浪的冲击状况时,使波浪模拟机构工作,通过动力机构18的联动效果,驱动横推条9左右移动即可使沙子沿左右方向起伏,从而有效模拟左右方向的海浪,同理驱动纵推条10前后移动即可有效模拟前后方向的海浪,对波浪的状况模拟起来形象、适配性高。当然,除了横推条9和纵推条10的分别移动来模拟单向波浪的情况之外,两者同时移动时,还能够模拟海水中两个方向的波浪同时袭来发生冲击的状况,对海况的模拟更全面。When it is necessary to simulate the impact of waves, make the wave simulation mechanism work, and through the linkage effect of the power mechanism 18, drive the transverse push bar 9 to move left and right to make the sand fluctuate in the left and right directions, thereby effectively simulating the waves in the left and right directions. The longitudinal push bar 10 can be moved back and forth to effectively simulate the waves in the front and rear directions, and the simulation of the wave conditions is vivid and highly adaptable. Of course, in addition to the situation where the horizontal push bar 9 and the vertical push bar 10 move respectively to simulate one-way waves, when the two move at the same time, it can also simulate the situation that waves from two directions in seawater hit at the same time and cause impact. The simulation of sea conditions is more comprehensive.

上述操作时,为了防止沙子进入横向滑轨7和纵向滑轨8而阻碍横向滑条11和纵向滑条12的滑动,同时为了扩大横推条9和纵推条10的移动范围,因此设置横向滑条11和纵向滑条12从承载箱6侧壁贯穿(即横向滑条11两端从横向滑轨7两端延伸出去,纵向滑条12两端从纵向滑轨8两端延伸出去),当然,在此基础上为了方便动力机构18的联动、以及对横推条9和纵推条10滑动的限位控制(避免滑脱),在两根横向滑条11同侧端部之间和两根纵向滑条12同侧端部之间分别通过挡条13连接,对应的动力机构18的输出端即可与挡条13处连接,从而方便驱动,如图1所示。During the above operation, in order to prevent the sand from entering the lateral slide rail 7 and the longitudinal slide rail 8 and hinder the sliding of the lateral slide bar 11 and the longitudinal slide bar 12, and at the same time to expand the moving range of the lateral push bar 9 and the vertical push bar 10, a lateral The slide bar 11 and the longitudinal slide bar 12 pass through the side wall of the carrying box 6 (that is, both ends of the transverse slide bar 11 extend from both ends of the transverse slide rail 7, and both ends of the longitudinal slide bar 12 extend from both ends of the longitudinal slide rail 8), Of course, on this basis, in order to facilitate the linkage of the power mechanism 18 and the limit control of the sliding of the transverse push bar 9 and the longitudinal push bar 10 (to avoid slippage), between the ends on the same side of the two transverse sliding bars 11 and the two The ends on the same side of the root longitudinal slide bar 12 are respectively connected by the blocking bar 13, and the output end of the corresponding power mechanism 18 can be connected with the blocking bar 13, so as to facilitate driving, as shown in FIG. 1 .

随着波浪模拟机构的持续工作,沙子的流动性会导致平台模型本体1逐渐沉降,这是使用沙子的缺陷,为了避免这个问题,本技术方案中设置了防沉降机构。With the continuous operation of the wave simulation mechanism, the fluidity of the sand will cause the platform model body 1 to gradually settle, which is a disadvantage of using sand. In order to avoid this problem, an anti-settling mechanism is provided in this technical solution.

在说明防沉降机构的工作效果之前,需要解释沙子的状态,在这个过程中,平台模型本体1下降,沙子会被挤向外侧,即外围的沙子会增加,平台模型本体1下方的沙子会减少,换言之,通过阻止平台模型本体1下方的沙子被持续挤向外围,也就是增加平台模型本体1下方的沙子,即可有效阻止平台模型本体1的沉降,本技术方案中的防沉降机构正是利用了这点。Before explaining the working effect of the anti-settlement mechanism, it is necessary to explain the state of the sand. During this process, the platform model body 1 descends, and the sand will be squeezed to the outside, that is, the surrounding sand will increase, and the sand under the platform model body 1 will decrease. , in other words, by preventing the sand under the platform model body 1 from being continuously squeezed to the periphery, that is, increasing the sand under the platform model body 1, the settlement of the platform model body 1 can be effectively prevented. The anti-settling mechanism in this technical solution is exactly Take advantage of this.

防沉降机构工作时,通过动力机构18控制四侧的聚沙条14相对移动(使聚沙条14同时靠近和远离),由于聚沙条14呈三棱柱形结构且聚沙条14内侧面与底面之间的夹角不小于90°,因此当聚沙条14相互靠近时,通过聚沙条14的内侧面能够将沙子向中间推聚,而当聚沙条14相互远离时,外围的沙子能够越过聚沙条14的外侧斜面向内侧填补,通过循环运动即可逐渐增加平台模型本体1下方的沙子,从而有效防止其发生沉降问题。When the anti-settling mechanism is working, the relative movement of the sand collecting bars 14 on the four sides is controlled by the power mechanism 18 (so that the sand collecting bars 14 are approached and away from each other at the same time). The angle between the bottom surfaces is not less than 90°, so when the sand gathering bars 14 are close to each other, the sand can be pushed to the middle through the inner side of the sand gathering bars 14, and when the sand gathering bars 14 are far away from each other, the sand on the periphery It can cross the outer slope of the sand gathering strip 14 to fill the inner side, and the sand under the platform model body 1 can be gradually increased by cyclic movement, thereby effectively preventing the settlement problem.

为了避免聚沙条14相互干扰碰撞,因此在导向杆15外端固定挡板16(对应的动力机构18输出端可与挡板16处连接),使得聚沙条14靠近到最大程度时,即支撑套17一一对应将挡板16阻挡时,聚沙条14依旧互不接触。In order to avoid mutual interference and collision of the sand collecting strips 14, the baffle plate 16 is fixed at the outer end of the guide rod 15 (the output end of the corresponding power mechanism 18 can be connected to the baffle plate 16), so that when the sand collecting strips 14 are approached to the maximum extent, that is, When the support sleeves 17 block the baffles 16 in one-to-one correspondence, the sand collecting strips 14 still do not contact each other.

本技术方案中,防沉降机构不仅仅只能够为平台模型本体1下方填补沙子,使某一侧的聚沙条14单独移动工作时,能够使沙子一边多一边少,也就是说能够使沙子表面向一侧倾斜,从而有效模拟海潮、大浪等导致海面倾斜的情况,进一步增加了模拟的全面性。In this technical solution, the anti-settling mechanism can not only fill the bottom of the platform model body 1 with sand, but when the sand collecting strips 14 on one side move independently, it can make one side more sand and one side less, that is to say, it can make the surface of the sand less. Tilting to one side can effectively simulate the situation that the sea surface is tilted due to ocean tides and large waves, which further increases the comprehensiveness of the simulation.

另外,通过聚沙条14内侧面的气孔19吹气,能够使聚沙条14内侧面的阻力减小,使聚沙条14移动起来更省力,利用这种效果,能够便于加快聚沙条14的移动速度,从而起到模拟地震等造成海水高频波动的情况。In addition, by blowing air through the air holes 19 on the inner side of the sand gathering bar 14, the resistance on the inner side of the sand gathering bar 14 can be reduced, so that the sand gathering bar 14 can be moved more effortlessly. Using this effect, it is convenient to speed up the sand gathering bar 14. It can simulate the high-frequency fluctuation of seawater caused by earthquakes and other situations.

Claims (4)

1.一种半潜式海洋平台试验模拟装置,包括平台模型本体(1),平台模型本体(1)包括浮筒(2)、立柱(3)、顶部支撑板(4),平台模型本体(1)上布设有光栅传感器(5),其特征在于:平台模型本体(1)外设置有承载箱(6);承载箱(6)内装载有模拟用沙;承载箱(6)内设置有波浪模拟机构;波浪模拟机构下方设置有防沉降机构;1. A semi-submersible offshore platform test simulation device, comprising a platform model body (1), the platform model body (1) comprising a buoy (2), a column (3), a top support plate (4), and a platform model body (1) ) is provided with a grating sensor (5), characterized in that: a bearing box (6) is arranged outside the platform model body (1); the bearing box (6) is loaded with sand for simulation; the bearing box (6) is provided with waves Simulation mechanism; an anti-settling mechanism is arranged below the wave simulation mechanism; 所述的波浪模拟机构包括沿左右方向分别固定在承载箱(6)内壁前后两侧的横向滑轨(7)、沿前后方向分别固定在承载箱(6)内壁左右两侧的纵向滑轨(8);纵向滑轨(8)设置在横向滑轨(7)下方;两个横向滑轨(7)之间沿前后方向设置有横推条(9);两个纵向滑轨(8)之间沿左右方向设置有纵推条(10);横推条(9)和纵推条(10)均呈凸弧形结构;横推条(9)前后两端分别固定有横向滑条(11);纵推条(10)左右两端分别固定有纵向滑条(12);横向滑条(11)分别与横向滑轨(7)对应滑动连接;纵向滑条(12)分别与纵向滑轨(8)对应滑动连接;横向滑条(11)左右两端分别滑动贯穿承载箱(6)的左右两侧;纵向滑条(12)前后两端分别滑动贯穿承载箱(6)的前后两端;两根横向滑条(11)同侧端部之间和两根纵向滑条(12)同侧端部之间分别通过挡条(13)连接;The wave simulation mechanism includes transverse slide rails (7) respectively fixed on the front and rear sides of the inner wall of the carrying box (6) in the left and right directions, and longitudinal slide rails (7) respectively fixed on the left and right sides of the inner wall of the carrying box (6) in the front and rear directions. 8); the longitudinal slide rails (8) are arranged below the transverse slide rails (7); a transverse push bar (9) is arranged between the two transverse slide rails (7) along the front and rear directions; A longitudinal push bar (10) is arranged between the left and right directions; both the transverse push bar (9) and the longitudinal push bar (10) are in a convex arc structure; the front and rear ends of the transverse push bar (9) are respectively fixed with transverse slide bars (11). ); the left and right ends of the longitudinal push bar (10) are respectively fixed with longitudinal slide bars (12); (8) Corresponding sliding connection; the left and right ends of the lateral slide bar (11) slide through the left and right sides of the carrying box (6) respectively; the front and rear ends of the longitudinal slide bar (12) slide through the front and rear ends of the carrying box (6) respectively ; Between the ends on the same side of the two transverse slide bars (11) and between the ends on the same side of the two longitudinal slide bars (12), respectively, are connected by a retaining bar (13); 所述的防沉降机构包括设置在承载箱(6)底部且分别与承载箱(6)四壁对应平行的聚沙条(14);聚沙条(14)呈三棱柱形结构且聚沙条(14)内侧面与底面之间的夹角不小于90°;聚沙条(14)外侧面固定有导向杆(15);导向杆(15)垂直贯穿对应的承载箱(6)侧壁;承载箱(6)外壁固定有一一对应滑动套接在导向杆(15)外的支撑套(17);导向杆(15)外端固定有挡板(16);当支撑套(17)一一对应将挡板(16)阻挡时,聚沙条(14)互不接触;The anti-settling mechanism comprises sand gathering strips (14) arranged at the bottom of the carrying box (6) and correspondingly parallel to the four walls of the carrying box (6); the sand gathering strips (14) have a triangular prism structure and the sand gathering strips (14) The angle between the inner side surface and the bottom surface is not less than 90°; a guide rod (15) is fixed on the outer side surface of the sand gathering strip (14); the guide rod (15) vertically penetrates the side wall of the corresponding carrying box (6); The outer wall of the carrying box (6) is fixed with a support sleeve (17) that is slidably sleeved outside the guide rod (15); a baffle plate (16) is fixed at the outer end of the guide rod (15); When the baffles (16) are blocked by one pair, the sand gathering strips (14) do not contact each other; 所述的横推条(9)、纵推条(10)和聚沙条(14)分别与独立的动力机构(18)联动。The horizontal push bar (9), the vertical push bar (10) and the sand gathering bar (14) are respectively linked with an independent power mechanism (18). 2.根据权利要求1所述的一种半潜式海洋平台试验模拟装置,其特征在于:所述的动力机构(18)为液压缸。2. A semi-submersible offshore platform test simulation device according to claim 1, characterized in that: the power mechanism (18) is a hydraulic cylinder. 3.根据权利要求1所述的一种半潜式海洋平台试验模拟装置,其特征在于:所述的动力机构(18)为电动推杆。3. A semi-submersible marine platform test simulation device according to claim 1, characterized in that: the power mechanism (18) is an electric push rod. 4.根据权利要求2或3所述的一种半潜式海洋平台试验模拟装置,其特征在于:聚沙条(14)为壳状结构;聚沙条(14)内侧面分布有气孔(19);气孔(19)外部均对应覆盖有橡胶挡片(20);橡胶挡片(20)上端与聚沙条(14)固定;聚沙条(14)通过导气管(21)与外界气源连接。4. A semi-submersible marine platform test simulation device according to claim 2 or 3, characterized in that: the sand gathering strip (14) is a shell-like structure; ); the outside of the air hole (19) is correspondingly covered with a rubber stopper (20); the upper end of the rubber stopper (20) is fixed with the sand gathering strip (14); the sand gathering strip (14) communicates with the external air source through the air guide (21) connect.
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