CN108868278B - A performance self-testing viscous fluid damper - Google Patents
A performance self-testing viscous fluid damper Download PDFInfo
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- CN108868278B CN108868278B CN201810946397.1A CN201810946397A CN108868278B CN 108868278 B CN108868278 B CN 108868278B CN 201810946397 A CN201810946397 A CN 201810946397A CN 108868278 B CN108868278 B CN 108868278B
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- 239000012530 fluid Substances 0.000 title claims abstract description 50
- 238000012360 testing method Methods 0.000 title claims description 17
- 238000006073 displacement reaction Methods 0.000 claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 20
- 238000013016 damping Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000035939 shock Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009659 non-destructive testing Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Environmental & Geological Engineering (AREA)
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- General Physics & Mathematics (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
技术领域Technical field
本发明属于土木工程结构振动控制装置,具体为一种性能自我检测的粘滞流体阻尼器。The invention belongs to a vibration control device for civil engineering structures, and is specifically a viscous fluid damper with self-testing performance.
背景技术Background technique
地震是人类面临的破坏力最大的突发性自然灾害之一,也是近年来出现频率较高的灾难事件。我国位于环太平洋和亚欧地震带之间,是世界上地震活动最频繁的国家之一,一半以上的国土面积受到地震的严重威胁。历次地震调查结果均表明,建筑物的破坏和倒塌是导致人员伤亡和经济损失的主要原因。随着城市化进程的加快,城市建筑和人口越来越密集,地震破坏可能更加严重。因此,如何减小建筑物特别是高层和超高层建筑在地震作用下的震动,进而减轻结构的破坏和倒塌,达到降低人员伤亡和经济损失的目的,是土木建筑工程领域面临的重大问题。Earthquakes are one of the most destructive sudden natural disasters faced by mankind, and they are also a disaster event that has occurred with high frequency in recent years. Our country is located between the Pacific Rim and the Eurasian seismic belt. It is one of the countries with the most frequent seismic activity in the world. More than half of its land area is seriously threatened by earthquakes. Previous earthquake investigation results have shown that the damage and collapse of buildings are the main causes of casualties and economic losses. As urbanization accelerates and urban buildings and populations become increasingly dense, earthquake damage may become more severe. Therefore, how to reduce the vibration of buildings, especially high-rise and super-high-rise buildings, under earthquake action, thereby reducing structural damage and collapse, and achieving the purpose of reducing casualties and economic losses, is a major issue faced in the field of civil construction engineering.
耗能减震技术是在建筑结构的某些部位设置耗能减震装置,利用耗能减震装置来吸收和消耗地震输入结构的能量,减小建筑结构的震动,进而减轻建筑结构的破坏和倒塌,已成为工程结构减震控制的主要措施。粘滞流体阻尼器是一种利用内部活塞和缸体之间的相对运动迫使缸体内粘滞流体流过节流孔而产生阻尼力,进而耗散地震能量的耗能减震装置。Energy-consuming shock-absorbing technology is to install energy-consuming shock-absorbing devices in certain parts of the building structure. The energy-consuming shock-absorbing devices are used to absorb and consume the energy input from the earthquake to the structure, reduce the vibration of the building structure, and thereby reduce the damage and damage of the building structure. Collapse has become the main measure for shock absorption control of engineering structures. The viscous fluid damper is an energy-dissipating shock absorbing device that uses the relative motion between the internal piston and the cylinder to force the viscous fluid in the cylinder to flow through the orifice to generate damping force, thereby dissipating seismic energy.
建筑结构的使用期长达几十年甚至上百年,因此也要求安装于建筑结构的粘滞流体阻尼器具有长期可靠性。然而,粘滞流体阻尼器在长期使用过程中,可能出现密封圈失效、粘滞流体离析、粘滞流体渗漏、活塞运动阻塞等耐久性问题,造成粘滞流体阻尼器的耗能减震性能降低甚至丧失,无法保障建筑结构在地震来临时的安全。因此,及时准确把握粘滞流体阻尼器的性能对于确保建筑结构在地震作用下的安全至关重要。安装于建筑结构的粘滞流体阻尼器不仅数量众多,而且位置分散。已有的无损检测手段无法对粘滞流体阻尼器的性能进行有效检测,拆卸实验检测又存在费时费力、价格昂贵等弊病,且粘滞流体阻尼器常常安装于墙体内部或检测人员难以到达的地方,无损检测和拆卸实验检测在实际工程中均难以实施。The service life of building structures lasts for decades or even hundreds of years, so viscous fluid dampers installed on building structures are also required to have long-term reliability. However, during long-term use of viscous fluid dampers, durability problems such as seal ring failure, viscous fluid segregation, viscous fluid leakage, and piston movement obstruction may occur, resulting in poor energy-consuming shock absorption performance of viscous fluid dampers. Reduced or even lost, the safety of the building structure cannot be guaranteed when an earthquake strikes. Therefore, timely and accurate understanding of the performance of viscous fluid dampers is crucial to ensure the safety of building structures under earthquake action. Viscous fluid dampers installed on building structures are not only numerous in number but also dispersed in location. Existing non-destructive testing methods cannot effectively detect the performance of viscous fluid dampers, and disassembly experimental testing has the disadvantages of being time-consuming, laborious, and expensive, and viscous fluid dampers are often installed inside walls or in places that are difficult for inspection personnel to reach. It is difficult to implement non-destructive testing and disassembly experimental testing in actual projects.
发明内容Contents of the invention
发明目的:为了克服现有技术中存在的不足,本发明目的是提供一种能定期自动检测耗能减震性能的性能自我检测的粘滞流体阻尼器,以便于管理人员对异常粘滞流体阻尼器进行及时更换,确保建筑结构在地震发生时的安全。Purpose of the invention: In order to overcome the deficiencies in the prior art, the purpose of the invention is to provide a performance self-testing viscous fluid damper that can automatically and regularly detect energy-consuming damping performance, so that managers can dampen abnormal viscous fluids. The device should be replaced in time to ensure the safety of the building structure in the event of an earthquake.
技术方案:本发明所述的一种性能自我检测的粘滞流体阻尼器,包括导杆和缸体,缸体的左端通过连接杆与第一连接耳环固定连接,导杆自左向右依次穿过第一活塞、隔板、第二活塞和盖板,导杆的右端依次通过力传感器、传递杆、步进电机和第二连接耳环固定连接,步进电机内部集成有温度传感器和性能自我检测系统,步进电机与保护罩固定连接,隔板与缸体固定连接,隔板上有垂直于隔板平面的节流孔和平行于隔板平面的挡板孔,缸体侧壁上具有垂直于缸体表面且与挡板孔连通的通孔,通孔和挡板孔的内部设置能够滑动的挡板,挡板外端固定能被磁铁吸附的带凸缘连接件,带凸缘连接件与缸体之间设置复位弹簧,保护罩上固定有通电后吸附带凸缘连接件并拉动挡板向外移动的电磁铁,保护罩与盖板之间设置位移传感器,电磁铁、位移传感器、力传感器均与性能自我检测系统相连。Technical solution: A viscous fluid damper with self-testing performance according to the present invention includes a guide rod and a cylinder. The left end of the cylinder is fixedly connected to the first connecting earring through a connecting rod, and the guide rod passes through it in sequence from left to right. After passing the first piston, partition plate, second piston and cover plate, the right end of the guide rod is fixedly connected through the force sensor, transmission rod, stepper motor and second connection earring. The stepper motor is integrated with a temperature sensor and performance self-test. system, the stepper motor is fixedly connected to the protective cover, and the partition is fixedly connected to the cylinder. The partition has a throttling hole perpendicular to the plane of the partition and a baffle hole parallel to the plane of the partition. There are vertical holes on the side wall of the cylinder. A through hole is formed on the surface of the cylinder and is connected to the baffle hole. A sliding baffle is provided inside the through hole and the baffle hole. A flanged connector that can be attracted by a magnet is fixed at the outer end of the baffle. The flanged connector is A return spring is set between the protective cover and the cylinder. An electromagnet is fixed on the protective cover that absorbs the flange connector and pulls the baffle to move outward after being powered on. A displacement sensor is provided between the protective cover and the cover plate. The electromagnet, displacement sensor, The force sensors are connected to the performance self-monitoring system.
性能自我检测系统包括时钟、电源控制器、微处理器、步进电机控制器、位移传感器信号解调电路、力传感器信号解调电路和温度传感器信号解调电路,时钟分别与不间断电源、电源控制器相连,微处理器分别与电源控制器、步进电机控制器、位移传感器信号解调电路、力传感器信号解调电路、温度传感器信号解调电路、数据存储器和无线发射器相连。电磁铁通电后吸附带凸缘连接件,同时带动挡板向外移动,微处理器读取数据存储器中的预定指令并传递给步进电机控制器,步进电机控制器根据指令驱动步进电机转动,进而通过传递杆和力传感器推动导杆运动,位移传感器信号解调电路、力传感器信号解调电路和温度传感器信号解调电路分别解调位移传感器、力传感器和温度传感器的信号,并传递至微处理器。微处理器读取数据存储器中的判断程序,比较理论阻尼力和实测导杆推力,判断粘滞流体阻尼器是否正常,并将判断结果传输至无线发射器,无线发射器以短信或者邮件的形式将判断结果通知粘滞流体阻尼器的管理人员。The performance self-testing system includes a clock, power controller, microprocessor, stepper motor controller, displacement sensor signal demodulation circuit, force sensor signal demodulation circuit and temperature sensor signal demodulation circuit. The clock is connected to the uninterruptible power supply and power supply respectively. The controller is connected, and the microprocessor is respectively connected to the power controller, the stepper motor controller, the displacement sensor signal demodulation circuit, the force sensor signal demodulation circuit, the temperature sensor signal demodulation circuit, the data memory and the wireless transmitter. After the electromagnet is energized, it attracts the flanged connector and drives the baffle to move outward. The microprocessor reads the predetermined instructions in the data memory and transmits them to the stepper motor controller. The stepper motor controller drives the stepper motor according to the instructions. rotation, and then promote the movement of the guide rod through the transmission rod and force sensor. The displacement sensor signal demodulation circuit, the force sensor signal demodulation circuit and the temperature sensor signal demodulation circuit respectively demodulate the signals of the displacement sensor, force sensor and temperature sensor, and transmit to the microprocessor. The microprocessor reads the judgment program in the data memory, compares the theoretical damping force with the measured guide rod thrust, judges whether the viscous fluid damper is normal, and transmits the judgment result to the wireless transmitter, which sends a text message or email. Notify the manager of the viscous fluid damper of the determination.
导杆和与导杆固定连接的第一活塞和第二活塞能够沿缸体纵向滑动。保护罩为圆柱形。步进电机有锁止装置,保证粘滞流体阻尼器在工作状态时,步进电机不能转动。保护罩、复位弹簧、缸体和隔板均由不能被磁铁吸附的材料制成。节流孔、挡板、带凸缘连接件、挡板孔、通孔、复位弹簧、电磁铁的数量相同。缸体端板上有第一通气孔,盖板上有第二通气孔。The guide rod and the first piston and the second piston fixedly connected to the guide rod can slide longitudinally along the cylinder. The protective cover is cylindrical. The stepper motor has a locking device to ensure that the stepper motor cannot rotate when the viscous fluid damper is in working condition. The protective cover, return spring, cylinder and partition are all made of materials that cannot be attracted by magnets. The number of orifices, baffles, flanged connectors, baffle holes, through holes, return springs, and electromagnets is the same. There is a first vent hole on the cylinder end plate, and a second vent hole on the cover plate.
工作原理:粘滞流体阻尼器默认处于工作状态,节流孔的面积较小,缸体与导杆相对运动时的阻尼力大,耗能减震性能良好。当时钟到达一月一日零点零分零秒时,粘滞流体阻尼器转换为检测状态,电磁铁通电后吸附带凸缘连接件并拉动挡板向外移动,大大增加节流孔的面积,大幅减小推动导杆需要的外力,使得步进电机可以轻松推动导杆运动;步进电机通过传递杆和力传感器推动导杆在缸体内滑动;通过比较导杆运动过程中力传感器的实测推力和微处理器计算的理论阻尼力判断粘滞流体阻尼器的性能是否异常,并将检测结果无线发送给管理人员。检测完成后,电磁铁断电磁性消失,复位弹簧拉动挡板回到原始位置,粘滞流体阻尼器回到工作状态。Working principle: The viscous fluid damper is in the working state by default, the area of the throttle hole is small, the damping force when the cylinder and the guide rod move relative to each other is large, and the energy consumption and shock absorption performance is good. When the clock reaches 0:00:00 on January 1st, the viscous fluid damper switches to the detection state. After the electromagnet is energized, it attracts the flange connector and pulls the baffle to move outward, greatly increasing the area of the orifice. , greatly reducing the external force required to push the guide rod, so that the stepper motor can easily push the guide rod to move; the stepper motor pushes the guide rod to slide in the cylinder through the transmission rod and the force sensor; by comparing the force sensor of the guide rod during the movement The measured thrust and the theoretical damping force calculated by the microprocessor determine whether the performance of the viscous fluid damper is abnormal, and the detection results are wirelessly sent to the manager. After the detection is completed, the electromagnet is disconnected and the electromagnetism disappears, the return spring pulls the baffle back to its original position, and the viscous fluid damper returns to the working state.
有益效果:本发明和现有技术相比,具有如下显著性特点:本发明通过导杆与缸体的相对运动,活塞推动粘滞流体流过隔板节流孔产生的阻尼力来消耗地震能量,有利于大幅减小建筑结构在地震作用下的振动,确保地震发生时建筑结构的安全;本发明集成于粘滞流体阻尼器内部的性能自我检测系统定期利用步进电机推动导杆移动产生阻尼力,通过比较力传感器的实测导杆推力和微处理器计算的理论阻尼力,判断粘滞流体阻尼器是否出现异常,具备粘滞流体阻尼器性能的自动检测功能,有利于保证安装于建筑结构的粘滞流体阻尼器的长期有效性;本发明能够自动将检测结果发送给粘滞流体阻尼器的管理人员,无需检测者现场操作,具有成本低廉、易于实现、无破坏性等优点,可在各种建筑结构的震动控制中广泛应用。Beneficial effects: Compared with the prior art, the present invention has the following significant features: the present invention consumes seismic energy through the relative movement of the guide rod and the cylinder, and the damping force generated by the piston pushing the viscous fluid to flow through the partition orifice. , which is conducive to greatly reducing the vibration of the building structure under the action of earthquakes and ensuring the safety of the building structure when an earthquake occurs; the performance self-detection system integrated inside the viscous fluid damper of the present invention regularly uses a stepper motor to push the guide rod to move to generate damping Force, by comparing the actual measured guide rod thrust of the force sensor and the theoretical damping force calculated by the microprocessor, it can be judged whether there is an abnormality in the viscous fluid damper. It has an automatic detection function of the viscous fluid damper performance, which is helpful to ensure that it is installed in the building structure. The long-term effectiveness of the viscous fluid damper; the invention can automatically send the detection results to the manager of the viscous fluid damper without requiring on-site operation by the detector, and has the advantages of low cost, easy implementation, non-destructiveness, etc., and can be used in It is widely used in vibration control of various building structures.
附图说明Description of the drawings
图1是本发明的一种性能自我检测的粘滞流体阻尼器示意图;Figure 1 is a schematic diagram of a performance self-testing viscous fluid damper of the present invention;
图2是本发明的缸体的纵剖面示意图;Figure 2 is a schematic longitudinal cross-sectional view of the cylinder of the present invention;
图3是本发明的隔板的纵剖面示意图;Figure 3 is a schematic longitudinal cross-sectional view of the partition of the present invention;
图4是本发明的A-A剖视图;Figure 4 is an A-A cross-sectional view of the present invention;
图5是本发明的B-B剖视图;Figure 5 is a B-B cross-sectional view of the present invention;
图6是本发明的C-C剖视图;Figure 6 is a C-C cross-sectional view of the present invention;
图7是本发明的D-D剖视图;Figure 7 is a D-D cross-sectional view of the present invention;
图8是本发明的E-E剖视图;Figure 8 is an E-E cross-sectional view of the present invention;
图9是本发明的性能自我检测系统原理框图。Figure 9 is a functional block diagram of the performance self-detection system of the present invention.
具体实施方式Detailed ways
如图1-8所示,缸体2的左端通过连接杆37与第一连接耳环38固定连接,缸体2端板上设有第一通气孔31,盖板6上设有第二通气孔32,导杆1一端依次穿过第二活塞5、隔板4和第一活塞3,并置于缸体2内部;导杆1与第二活塞5和第一活塞3固定连接,并可在缸体2内部纵向滑动;导杆1另一端穿过盖板6,并依次与力传感器7、传递杆8、步进电机9和第二连接耳环10固定连接;盖板6上设有第二通气孔32;步进电机9外部固定有圆柱形保护罩12,内部集成有温度传感器11和性能自我检测系统;步进电机9通过步进电机电源线39与不间断电源28相连;隔板4与缸体2固定连接,隔板4上具有垂直于隔板4平面的节流孔13和平行于隔板4平面的挡板孔14;缸体2内部第一活塞3和第二活塞5之间的腔室内充满粘滞流体36,缸体2侧壁上具有垂直于缸体2表面且与挡板孔14连通的通孔15;通孔15和挡板孔14内部设置有挡板16,挡板16可在通孔15和挡板孔14内滑动;挡板16外端固定由可被磁铁吸附的材料制成的带凸缘连接件17;带凸缘连接件17与缸体2之间设置有复位弹簧18;保护罩12上固定有电磁铁19,电磁铁19与带凸缘连接件17之间有空隙,为带凸缘连接件17和挡板16向外移动留出空间,电磁铁19通过电磁铁电源线33与性能自我检测系统相连;保护罩12与盖板6之间设置有位移传感器20;位移传感器20和力传感器7分别通过位移传感器数据线34和力传感器数据线35与性能自我检测系统相连。节流孔13、挡板16、带凸缘连接件17、挡板孔14、通孔15、复位弹簧18、电磁铁19和电磁铁电源线33的数量相等、规格相同。保护罩12、复位弹簧18、缸体2和隔板4的材质由不能被磁铁吸附的材料制成。优选地,步进电机9具有锁止装置,保证粘滞流体阻尼器在工作状态时,步进电机不能转动。第一活塞3与缸体2侧壁接缝处、隔板4与导杆1接缝处、第二活塞5与缸体2侧壁接缝处、挡板16与挡板孔14接缝处均密封连接。As shown in Figure 1-8, the left end of the cylinder 2 is fixedly connected to the first connecting earring 38 through the connecting rod 37. The end plate of the cylinder 2 is provided with a first ventilation hole 31, and the cover plate 6 is provided with a second ventilation hole. 32. One end of the guide rod 1 passes through the second piston 5, the partition 4 and the first piston 3 in sequence, and is placed inside the cylinder 2; the guide rod 1 is fixedly connected to the second piston 5 and the first piston 3, and can be The cylinder 2 slides longitudinally inside; the other end of the guide rod 1 passes through the cover plate 6 and is fixedly connected with the force sensor 7, the transmission rod 8, the stepper motor 9 and the second connecting earring 10 in turn; the cover plate 6 is provided with a second Ventilation hole 32; a cylindrical protective cover 12 is fixed on the outside of the stepper motor 9, and a temperature sensor 11 and a performance self-detection system are integrated inside; the stepper motor 9 is connected to the uninterruptible power supply 28 through the stepper motor power cord 39; the partition 4 Fixedly connected to the cylinder 2, the partition 4 has a throttling hole 13 perpendicular to the plane of the partition 4 and a baffle hole 14 parallel to the plane of the partition 4; the first piston 3 and the second piston 5 inside the cylinder 2 The chamber between is filled with viscous fluid 36, and the side wall of the cylinder 2 has a through hole 15 perpendicular to the surface of the cylinder 2 and connected with the baffle hole 14; a baffle 16 is provided inside the through hole 15 and the baffle hole 14, The baffle 16 can slide in the through hole 15 and the baffle hole 14; the outer end of the baffle 16 is fixed with a flanged connector 17 made of a material that can be absorbed by magnets; the flanged connector 17 is connected to the cylinder 2 There is a return spring 18 between them; an electromagnet 19 is fixed on the protective cover 12, and there is a gap between the electromagnet 19 and the flanged connector 17, leaving space for the flanged connector 17 and the baffle 16 to move outward. The electromagnet 19 is connected to the performance self-detection system through the electromagnet power line 33; a displacement sensor 20 is provided between the protective cover 12 and the cover plate 6; the displacement sensor 20 and the force sensor 7 are respectively connected through the displacement sensor data line 34 and the force sensor data line. 35 is connected to the performance self-testing system. The orifice 13, the baffle 16, the flanged connector 17, the baffle hole 14, the through hole 15, the return spring 18, the electromagnet 19 and the electromagnet power cord 33 have the same quantity and specifications. The protective cover 12, the return spring 18, the cylinder 2 and the partition 4 are made of materials that cannot be attracted by magnets. Preferably, the stepper motor 9 has a locking device to ensure that the stepper motor cannot rotate when the viscous fluid damper is in working condition. The joint between the first piston 3 and the side wall of the cylinder 2, the joint between the partition plate 4 and the guide rod 1, the joint between the second piston 5 and the side wall of the cylinder 2, the joint between the baffle 16 and the baffle hole 14 All sealed connections.
其中,性能自我检测系统框图如图9所示,包括由时钟21、电源控制器22、微处理器23、步进电机控制器24、位移传感器信号解调电路25、力传感器信号解调电路26和温度传感器信号解调电路27组成的电源传输路径,还包括由微处理器23和步进电机控制器24组成的指令传输路径,以及由位移传感器信号解调电路25、力传感器信号解调电路26、温度传感器信号解调电路27、微处理器23、数据存储器29和无线发射器30组成的信号传输路径。Among them, the performance self-test system block diagram is shown in Figure 9, including a clock 21, a power controller 22, a microprocessor 23, a stepper motor controller 24, a displacement sensor signal demodulation circuit 25, and a force sensor signal demodulation circuit 26. The power transmission path composed of the temperature sensor signal demodulation circuit 27 also includes an instruction transmission path composed of the microprocessor 23 and the stepper motor controller 24, as well as the displacement sensor signal demodulation circuit 25 and the force sensor signal demodulation circuit. 26. The signal transmission path consists of the temperature sensor signal demodulation circuit 27, the microprocessor 23, the data memory 29 and the wireless transmitter 30.
上述粘滞流体阻尼器默认处于工作状态,不间断电源28为时钟21和电源控制器22持续供电,节流孔13的面积较小,缸体2与导杆1相对运动时的阻尼力大,耗能减震性能良好。当时钟21到达一月一日零点零分零秒时,粘滞流体阻尼器转换为检测状态,电源控制器22为电磁铁19、步进电机控制器24、位移传感器信号解调电路25、力传感器信号解调电路26、温度传感器信号解调电路27和微处理器23供电;电磁铁19通电后产生磁场,吸附带凸缘连接件17,同时带动与其固定连接的挡板16向外移动;微处理器23读取数据存储器29中的预定指令并传递给步进电机控制器24,步进电机控制器24根据指令驱动步进电机9转动,进而通过传递杆8和力传感器7推动导杆1运动;位移传感器信号解调电路25、力传感器信号解调电路26和温度传感器信号解调电路27分别解调位移传感器20、力传感器7和温度传感器11的信号,得到推动导杆1的推力、导杆1与缸体2的相对位移和阻尼器温度,并传递至微处理器23;微处理器23根据采集的相对位移和温度,读取数据存储器29中的粘滞流体阻尼器阻尼力计算程序,得出理论上应该具有的阻尼力;微处理器23进一步读取数据存储器29中的判断程序,比较理论阻尼力和实测导杆1推力,判断粘滞流体阻尼器是否正常,并将判断结果传输至无线发射器30;无线发射器30以短信或者邮件的形式将判断结果通知粘滞流体阻尼器的管理人员。检测完成后,步进电机9退回到原始位置,电流控制器切断电磁铁19、步进电机控制器24、位移传感器信号解调电路25、力传感器信号解调电路26、温度传感器信号解调电路27和微处理器23的电源,电磁铁19的磁性消失,复位弹簧18拉动挡板16回到原始位置,粘滞流体阻尼器回到工作状态。The above-mentioned viscous fluid damper is in the working state by default. The uninterruptible power supply 28 continuously supplies power to the clock 21 and the power controller 22. The area of the orifice 13 is small, and the damping force when the cylinder 2 and the guide rod 1 move relative to each other is large. The energy consumption and shock absorption performance are good. When the clock 21 reaches 0:00:00 on January 1, the viscous fluid damper switches to the detection state, and the power controller 22 is the electromagnet 19, the stepper motor controller 24, the displacement sensor signal demodulation circuit 25, The force sensor signal demodulation circuit 26, the temperature sensor signal demodulation circuit 27 and the microprocessor 23 provide power; the electromagnet 19 generates a magnetic field after being energized, adsorbing the flange connector 17, and at the same time driving the baffle 16 fixedly connected to it to move outward. ; The microprocessor 23 reads the predetermined instructions in the data memory 29 and transmits them to the stepper motor controller 24. The stepper motor controller 24 drives the stepper motor 9 to rotate according to the instructions, and then pushes the guide through the transmission rod 8 and the force sensor 7. Rod 1 moves; the displacement sensor signal demodulation circuit 25, the force sensor signal demodulation circuit 26 and the temperature sensor signal demodulation circuit 27 demodulate the signals of the displacement sensor 20, the force sensor 7 and the temperature sensor 11 respectively, and obtain the force of pushing the guide rod 1 The thrust, the relative displacement between the guide rod 1 and the cylinder 2 and the damper temperature are transmitted to the microprocessor 23; the microprocessor 23 reads the viscous fluid damper damping in the data memory 29 based on the collected relative displacement and temperature. The force calculation program is used to obtain the theoretical damping force; the microprocessor 23 further reads the judgment program in the data memory 29, compares the theoretical damping force with the measured guide rod 1 thrust, and judges whether the viscous fluid damper is normal, and The judgment result is transmitted to the wireless transmitter 30; the wireless transmitter 30 notifies the manager of the viscous fluid damper of the judgment result in the form of a text message or email. After the detection is completed, the stepper motor 9 returns to the original position, and the current controller cuts off the electromagnet 19, the stepper motor controller 24, the displacement sensor signal demodulation circuit 25, the force sensor signal demodulation circuit 26, and the temperature sensor signal demodulation circuit. 27 and the power supply of the microprocessor 23, the magnetism of the electromagnet 19 disappears, the return spring 18 pulls the baffle 16 back to the original position, and the viscous fluid damper returns to the working state.
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