CN105716658A - Prototype stress strain testing method and system for gate - Google Patents

Prototype stress strain testing method and system for gate Download PDF

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Publication number
CN105716658A
CN105716658A CN201610118096.0A CN201610118096A CN105716658A CN 105716658 A CN105716658 A CN 105716658A CN 201610118096 A CN201610118096 A CN 201610118096A CN 105716658 A CN105716658 A CN 105716658A
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China
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strain
stress
gate
strain gauge
hydraulic
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CN201610118096.0A
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Chinese (zh)
Inventor
龚登位
乔进国
胡木生
耿红磊
刘启文
徐徳新
赵晓嘉
齐巨涛
赵安波
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华能澜沧江水电股份有限公司小湾水电厂
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Priority to CN201610118096.0A priority Critical patent/CN105716658A/en
Publication of CN105716658A publication Critical patent/CN105716658A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Abstract

The invention discloses a prototype stress strain testing method for a gate. Firstly, a structure feature part of a hydraulic metal structure steel gate is obtained; according to the structure feature part, a stress strain testing point of the hydraulic metal structure steel gate is determined; a three-wire resistance strain gauge is distributed on the strain testing point through the four-wire connection method; finally, testing data between stress and strain of the resistance strain gauge. The underwater three-wire resistance strain gauge without being subjected to waterproof treatment is adopted in the prototype stress strain testing method, and the four-wire connection method is also adopted, so that strain testing errors caused by wire resistance, touch resistance and the like are effectively reduced and eliminated. Besides, by conducting finite element (CFD) stress analysis on an arc-shaped gate body of the hydraulic metal structure steel gate in advance, the deformation mode of the hydraulic metal structure steel gate is predicted, dangerous sections and dangerous positions are found, and the testing point is selected finally. By means of symmetry of the structure and a load, the number of testing points is reduced, and workloads are reduced. The aim that the stress state of the structure can be reflected truly enough with the minimum number of testing points is achieved.

Description

-种阐口原型应力应变测试方法及系统 - kind of stress-strain testing prototype explain opening method and system

技术领域 FIELD

[0001] 本发明设及水电站闽口测试领域,尤其设及一种水工金属结构钢闽口原型应力应变测试方法及系统。 [0001] The present invention is provided and the field test port Min station, and in particular, provided an archetype stress port hydraulic metal structure steel Min Strain Test method and system.

背景技术 Background technique

[0002] 水电站的闽口是保证水电站正常工作的一个重要组成部分,必须对闽口原型进行有效测试,测试工程受水库调度及水库水位变化的影响,一般需要对闽口原型进行应力应变测试,闽口应力应变测试按测量对象的不同可分为实物测量和模型测量,按测量设备可分为静态测量和动态测量。 [0002] Min hydropower station is to ensure that an important part of hydropower work must be carried out on the Min port prototype valid test, test engineering affected by changes in water level reservoir regulation and reservoir, generally require stress-strain testing Min port prototype, Min stress-strain test port can be divided into different physical measurements and model measurement object, by measuring the measurement apparatus may be divided into static and dynamic measurements.

[0003] 根据相关工程经验,由于应变片的防水处理会产生额外的附加应变,W及由于导线电阻、接触电阻等带来的应变测试误差,所W不能保证测试的有效性和测量精度。 [0003] The relevant engineering experience, since the waterproof sheet processing strain will generate additional additional strain, W, and the validity and accuracy of the test due to bring the wire resistance, contact resistance strain measurement error, the W can not be guaranteed.

[0004] 因此,有急需一种能有效降低和消除由于导线电阻、接触电阻等带来的应变测试误差的测试方法。 [0004] Accordingly, there is need for a effective method to reduce and eliminate strain testing error caused due to the test lead resistance and contact resistance.

发明内容 SUMMARY

[0005] ( - )要解决的技术问题是提供一种能准确对水工金属结构钢闽口原型应力应变进行测试方法;该方法能有效降低和消除由于导线电阻、接触电阻等带来的应变测试误差。 [0005] (-) technical problem to be solved is to provide an accurate prototype strain stress Min port hydraulic metal steel tested; the method can effectively reduce and eliminate the strains due to wire resistance, contact resistance caused by test error.

[0006] 本发明的目的之一是提出一种闽口原型应力应变测试方法;本发明的目的之二是提出一种闽口原型应力应变测试系统。 One object of the present invention [0006] Min port is to propose a method for testing stress-strain prototype; object of the present invention is to provide a two-port Min Stress strain testing prototype systems.

[0007] (二)技术方案 [0007] (ii) Technical Solution

[000引本发明的目的之一是通过W下技术方案来实现的: [000 primer object of the present invention is achieved by the technical solution W:

[0009] 本发明提供的一种闽口原型应力应变测试方法,包括W下步骤: [0009] A prototype of the mouth Min stress-strain testing of the present invention provides a method, comprising the steps of W:

[0010] SI:获取水工金属结构钢闽口结构特征部位; [0010] SI: obtaining structural characteristics Min port hydraulic metal steel parts;

[0011] S2:根据结构特征部位确定水工金属结构钢闽口应力应变测点; [0011] S2: determine Min port hydraulic metal steel stress-strain measuring point with the configuration of the site;

[0012] S3:在应变测点采用四线接法布设=线电阻应变片; [0012] S3: four-wire connection at the strain measuring points = the line resistance strain gauge layout;

[0013] S4:采集S线电阻应变片应力与应变之间的测试数据。 [0013] S4: S wire resistance strain collection of test data between stress and strain the sheet.

[0014] 进一步,所述步骤Sl获取水工金属结构钢闽口结构特征部位,是通过预先对弧形闽口进行有限元CFD应力分析来获取水工金属结构钢闽口结构的危险断面及危险位置;所述水工金属结构钢闽口结构特征部位具体包括上主梁、下主梁、上支臂、下支臂、面板和吊耳。 [0014] Further, the acquiring step Sl hydraulic metal steel structural features Min mouth portion, is acquired in advance by Min arcuate port for finite element stress analysis CFD dangerous section Min port hydraulic metal structure of the steel and dangerous position; hydraulic metal steel structural features Min port portion comprises a main beam, the main beam, the upper arm, lower arm, lug and the panel.

[0015] 进一步,所述步骤S2根据结构特征部位确定水工金属结构钢闽口应力应变测点是根据钢闽口结构特征部位的位置及结构形式来选取应力应变测点;所述水工金属结构钢闽口应力应变测点包括主梁应力应变测点布置、上支臂应力应变测点布置、下支臂应力应变测点布置、面板应力应变测点布置W及吊耳应力应变测点布置。 [0015] Further, the step portion S2 is determined structural features Min port hydraulic metal steel stress-strain measurement points according to the position and the structure is a characteristic portion of the steel structure to select port Min stress and strain measurement points; the hydraulic metal structural steel Min port stress-strain measurement point comprises a stress-strain measuring points of the main beam is arranged, on the support arm stress strain measuring points, the lower arm stress strain measuring points, the panel stress strain measuring points W and lug stress-strain measuring points .

[0016] 进一步,所述步骤S3中的=线电阻应变片的布设按W下方式进行:所述应变片一端通过rl与R4-端连接;所述R4的另一端通过r3与应变片的另一端连接;所述应变片的另一端还通过r2与串联的R2和R3连接;所述rl与R4连接公共点与R2和R3连接公共点作为输出端; [0016] Further, the step S3 = routed wire resistance strain gauge carried out in the manner W: the strain gages are connected by one end to the rl R4- end; R4 of the other end of the strain gauge by another r3 One end of the connection; the other end of the strain gauge is also connected in series R2 and R3 via R2; rl and R4 is connected to the common point of R2 and R3 as an output terminal connected to a common point;

[0017] 所述输出端的输出电信号输送到数据采集模块; [0017] The electrical output signal fed to the output terminal of the data acquisition module;

[0018] 所述数据采集模块将采集到的电信号通过Zi浊ee传输数据; [0018] The data acquisition module will be collected by the electric signal transmission ee Zi cloud data;

[0019] 其中, [0019] wherein,

[0020] rl表示应变片导线电阻; [0020] rl represents the wire resistance strain gauge;

[0021] r2表示应变片导线电阻; [0021] r2 represents the wire resistance strain gauge;

[0022] r3表示应变片导线电阻; [0022] r3 represents a resistance wire strain gauge;

[0023] Rl表示惠斯通电桥桥臂电阻; [0023] Rl represents a bridge arm of the Wheatstone bridge resistance;

[0024] R2表示惠斯通电桥桥臂电阻; [0024] R2 represents a bridge arm of the Wheatstone bridge resistance;

[0025] R3表示惠斯通电桥桥臂电阻; [0025] R3 represents a bridge arm of the Wheatstone bridge resistance;

[00%] Rg表示应变片电阻。 [00%] Rg represents a resistance strain gauge.

[0027] 进一步,所述步骤S4采集模块采集=线电阻应变片的应力与应变之间测试数据是通过数据采集模块来采集应变片的电信号,然后基于IE邸802.15.4标准的低功耗局域网协议的ZigBee模块进行传输;所述测试数据包括结构静应力测试数据和所述运动状态结构应力测试数据; [0027] Further, the step S4 = test data collecting module between stress and strain wire resistance strain gauge is acquired by the data acquisition module to the electrical strain gauge, and based on the IE Di 802.15.4 low power LAN transmission module ZigBee protocol; the test data structure including static stress test data and the motion state of structural stress test data;

[0028] 所述结构静应力测试数据,是测试闽口在挡水过程中构件的应力应变增量数据; 测定闽口受力构件从不受水荷载到额定水荷载的变化量; [0028] The data structure of the static stress test, stress test port member Min strain increments during retaining data; Min measured from the load port by the amount of change from water to water nominal load force component;

[0029] 所述运动状态结构应力测试数据,是测试闽口在开启和关闭过程中构件的应力应变变化数据;测定运动状态受力构件的应力应变过程线。 [0029] the motion state of structural stress test data, test port Min stress strain change data member in the process of opening and closing; motion state determination process of the stress-strain line of the force member.

[0030] 本发明的目的之二是通过W下技术方案来实现的: [0030] Second object of the present invention is a W implemented under the technical solutions:

[0031] 本发明提供的一种闽口原型应力应变测试系统,包括=线电阻应变片、数据采集模块、ZigBee模块和处理器; [0031] A prototype of the mouth Min stress strain of the present invention provides a test system, comprising a = wire resistance strain gauge data acquisition module, ZigBee module and a processor;

[0032] 所述=线电阻应变片设置于水工金属结构钢闽口结构特征部位上; [0032] a = wire resistance strain gauge is provided on the structural characteristics of structural steel parts Min port hydraulic metal;

[0033] 所述数据采集模块与=线电阻应变片连接用于采集应变片输出的电信号; [0033] The data acquisition module and = connecting wire resistance strain gauge for acquiring an electrical signal output from the strain gauge;

[0034] 所述Zi浊ee模块与数据采集模块连接,用于接收采集模块采集到的电信号并将电信号传输到处理器中; [0034] The cloud Zi ee connection module and data acquisition module, for receiving electrical signals and transmits the electrical signal acquisition module collected to the processor;

[0035] 所述处理器用于接收Zi浊ee模块传送来的数据并进行存储和分析。 The [0035] processor for receiving data Zi cloud ee module and transmitted for storage and analysis.

[0036] 进一步,所述=线电阻应变片按W下方式设置: [0036] Further, the wire resistance strain gauge = W according to the manner:

[0037] 所述应变片一端通过rl与R4-端连接;所述R4的另一端通过r3与应变片的另一端连接;所述应变片的另一端还通过r2与串联的R2和R3连接;所述rl与R4连接公共点与R2和R3连接公共点作为输出端; [0037] The strain gages are connected by one end to the rl R4- end; the other end of R4 is r3 and the other end connected to the strain gauge; the other end of the strain gauge is also connected in series R2 and R3 via R2; rl and R4 is connected to the common point of R2 and R3 as an output terminal connected to a common point;

[0038] 所述输出端的输出电信号输送到数据采集模块; [0038] The electrical output signal fed to the output terminal of the data acquisition module;

[0039] 所述数据采集模块将采集到的电信号通过Zi浊ee传输数据; [0039] The data acquisition module will be collected by the electric signal transmission ee Zi cloud data;

[0040] 其中, [0040] wherein,

[0041 ] rl表示应变片导线电阻; [0041] rl represents the wire resistance strain gauge;

[0042] r2表示应变片导线电阻; [0042] r2 represents the wire resistance strain gauge;

[0043] r3表示应变片导线电阻; [0043] r3 represents a resistance wire strain gauge;

[0044] Rl表示惠斯通电桥桥臂电阻; [0044] Rl represents a bridge arm of the Wheatstone bridge resistance;

[0045] R2表示惠斯通电桥桥臂电阻; [0045] R2 represents a bridge arm of the Wheatstone bridge resistance;

[0046] R3表示惠斯通电桥桥臂电阻; [0046] R3 represents a bridge arm of the Wheatstone bridge resistance;

[0047] Rg表示应变片电阻。 [0047] Rg represents a resistance strain gauge.

[0048] 进一步,所述=线电阻应变片设置的测点是根据水工金属结构钢闽口结构特征部位的各结构与载荷的对称性进行布设。 [0048] Further, the measuring points = the line resistance strain gauge is provided in accordance with the symmetry of layout structure of each portion of the load characteristics of the metal structure of the steel Min hydraulic port structure.

[0049] 进一步,所述水工金属结构钢闽口结构特征部位是通过预先对弧形闽口进行有限元WD应力分析来获取水工金属结构钢闽口结构的危险断面及危险位置;所述水工金属结构钢闽口结构特征部位具体包括上主梁、下主梁、上支臂、下支臂、面板和吊耳。 [0049] Further, the hydraulic parts of the structural features of the metal structure to obtain steel Min port is dangerous and hazardous locations sectional structural steel Min port hydraulic metal structure by advance Min arcuate port for the WD finite element stress analysis; the hydraulic metal steel structural features Min port portion comprises a main beam, the main beam, the upper arm, lower arm, lug and the panel.

[0050] 进一步,所述根据结构特征部位确定水工金属结构钢闽口应力应变测点是根据钢闽口结构特征部位的位置及结构形式来选取应力应变测点;所述水工金属结构钢闽口应力应变测点包括主梁应力应变测点布置、上支臂应力应变测点布置、下支臂应力应变测点布置、面板应力应变测点布置W及吊耳应力应变测点布置。 [0050] Further, the determination Min port hydraulic metal steel stress-strain measurement points is to select the measurement point according to the position of the stress-strain and structure characteristic portions of steel Min port structure with the configuration of the site; the hydraulic metal structural steel Min port stress strain stress strain measuring point comprises measuring point arranged girder, stress and strain on the support arm are arranged measuring points, the lower arm stress strain measuring points, the stress strain measuring points panel W, and lug stress-strain measuring points.

[005。 [005. (立巧益效果 (Li Qiao beneficial effect

[0052] 与现有技术和产品相比,本发明有如下优点: [0052] Compared with the prior art and products, the present invention has the following advantages:

[0053] 本发明采用没有经过防水处理的水下=线电阻应变片,并采用四线接法,有效降低和消除由于导线电阻、接触电阻等带来的应变测试误差。 [0053] The present invention uses the water-repellent treatment has not been submerged = wire resistance strain gauge, and a four-wire connection, effectively reduce and eliminate strain testing error caused by wire resistance, since the contact resistance.

[0054] 本发明通过预先对弧形闽口进行有限元(CFD)应力分析,找出结构的危险断面及危险位置,根据CFD应力分析成果和测试要求,结合工程实践经验最后选定测点。 [0054] The present invention in advance by an arcuate opening Min finite element stress analysis (CFD), to identify hazardous and dangerous section position of the structure, according to the results of stress analysis and CFD testing requirements, engineering practice experience last selected measuring point. 利用结构与载荷的对称性,W减少测点数目,减轻工作量。 Structure and use of the load symmetry, W reduce the number of measurement points, to reduce the workload. 达到了W最少的测点就能足够真实地反映结构受力状态。 W reached the minimum measuring points can be enough to truly reflect the structure of the stress state.

附图说明 BRIEF DESCRIPTION

[0055] 图1是本发明的闽口原型应力应变测试方法流程图。 [0055] FIG. 1 is a prototype of the stress-strain Min port testing method of the present invention. FIG.

[0056] 图2是本发明的泄洪桐弧形工作闽口上支臂及上主梁应力测点布置图。 [0056] FIG. 2 is a spillway Tong Min arcuate opening operation of the invention on the support arm and the stress measuring points on the main beam arrangement of FIG.

[0057] 图3是本发明的泄洪桐弧形工作闽口下支臂及下主梁应力测点布置图。 [0057] FIG. 3 is a spillway Tong invention arcuate working port at Min and lower main arm stress measuring beam dot arrangement in FIG.

[0058] 图4是本发明的泄洪桐弧形工作闽口口叶应力测点布置图。 [0058] FIG. 4 is a curved work spillway Tong invention Min mouth leaves stress measuring points in FIG.

[0059] 图5是本发明的泄洪桐弧形工作闽口上支臂及上主梁动应力测点布置图。 [0059] FIG. 5 is a spillway Tong Min arcuate opening operation of the invention on the support arm and the upper girder dynamic stress measuring points in FIG.

[0060] 图6是本发明的泄洪桐弧形工作闽口下支臂及下主梁动应力测点布置图。 [0060] FIG. 6 is a spillway Tong Min arcuate opening operation of the invention under dynamic stress measuring arm and the main beam spot arrangement of FIG.

[0061] 图7是本发明的泄洪桐弧形工作闽口口叶动应力测点布置图。 [0061] FIG. 7 is a curved work spillway Tong invention Min mouth leaf dynamic stress measuring points in FIG.

[0062] 图8是本发明的=线电阻应变片四线接法接线。 [0062] FIG. 8 is a resistance strain gage line = four-wire connection terminal of the present invention.

[0063] 图9是本发明的一种闽口原型应力应变测试方法原理示意图方式。 [0063] FIG. 9 is a prototype of the present invention, the stress-strain Min port schematically the principle of the test method.

[0064] 图中,1表示S线电阻应变片;2表示数据采集模块;3表示ZigBee模块;4表示工作电脑。 [0064] FIG, 1 wire resistance strain gauge represents S; 2 represents a data acquisition module; represents ZigBee module 3; 4 represents a work computer.

具体实施方式 Detailed ways

[0065] 为了便于本领域普通技术人员理解和实施本发明,下面结合附图及具体实施方式对本发明作进一步的详细描述。 [0065] For ease of ordinary skill in the art to understand and practice the present invention, the following accompanying drawings and specific embodiments of the present invention will be further described in detail.

[0066] 实施例1 [0066] Example 1

[0067] 如附图1所示,本实施例提供一种闽口原型应力应变测试方法,包括W下步骤: [0067] As shown in Figure 1, the present embodiment provides a stress-strain Min port prototype testing method, W comprising the steps of:

[0068] SI:获取水工金属结构钢闽口结构特征部位; [0068] SI: obtaining structural characteristics Min port hydraulic metal steel parts;

[0069] S2:根据结构特征部位确定水工金属结构钢闽口应力应变测点; [0069] S2: determine Min port hydraulic metal steel stress-strain measuring point with the configuration of the site;

[0070] S3:在应变测点采用四线接法布设=线电阻应变片1; [0070] S3: strain measurement using four-point connection wire resistance strain gauge layout = 1;

[0071] S4:采集=线电阻应变片应力与应变之间的测试数据四个步骤: [0071] S4: = collect test data lines between the stress and the strain resistance strain gauges four steps:

[0072] 所述步骤Sl获取水工金属结构钢闽口结构特征部位,用于通过预先对弧形闽口进行有限元(CFD)应力分析结合相关标准和工程实践经验,找出结构的危险断面及危险位置; 水工金属结构钢闽口结构特征部位具体包括上主梁、下主梁、上支臂、下支臂、面板W及吊耳。 [0072] The obtaining step Sl steel structural features hydraulic metal parts Min port for in advance by the finite element arcuate opening Min (CFD) analysis of binding standards and stress engineering practice, to identify the risk of cross-sectional structure and dangerous position; wherein metal parts Min hydraulic port structure comprises a steel girder, the main girder on the support arm, lower arm, and the panel W lug.

[0073] 所述步骤S2根据结构特征部位确定水工金属结构钢闽口应力应变测点,用于根据钢闽口结构特征部位的位置及结构形式,W及结合相关标准和工程实践经验选取应力应变测点;水工金属结构钢闽口应力应变测点包括:主梁应力应变测点布置、上支臂应力应变测点布置、下支臂应力应变测点布置、面板应力应变测点布置W及吊耳应力应变测点布置。 [0073] Step S2 determines Min port hydraulic metal steel stress-strain measuring point with the configuration of the site, according to the position and structure of the structural characteristics of steel Min mouth portion, W, and works in conjunction with standards and practices selected stress strain measuring point; Min port hydraulic metal steel stress-strain measuring point comprising: a stress-strain measuring points of the main beam, the arm stress strain measuring points, the lower arm stress strain measuring points, the stress strain measuring points panel W and lug stress-strain measuring points.

[0074] 所述步骤S3 =线电阻应变片四线接法接线方式用于连接应变片和数据采集模块, 包括 [0074] The step S3 = wire four-wire resistance strain gauge connection wiring for connecting the strain gauge and the data acquisition module, comprising

[0075] S线电阻应变片1,型号为WFRA-6-11,通过测量电阻的变化而对应变进行测定,输出电信号; [0075] S 1 wire resistance strain gauge, Model WFRA-6-11, and the strain was measured by measuring the change in the electric signal output resistance;

[0076] 数据采集模块2,采集应变片输出的电信号,通过ZigBee将数据传送至工作电脑进行存储和分析。 [0076] Data acquisition module 2, strain gauge output electrical signal acquired through ZigBee to transmit data to a computer for storage and analysis work. 所述=线电阻应变片四线接法接线方式。 The wire strain gauges = four-wire connection wiring.

[0077] 接线方式如图8所示;图8为=线电阻应变片四线接法接线方式; [0077] wiring 8; FIG. 8 is a line = four-wire resistance strain gauge connection wiring;

[0078] 所述步骤S4采集模块采集=线电阻应变片的应力与应变之间测试数据,用于通过采集模块采集应变片的电信号,然后基于IEEE802.15.4标准的低功耗局域网协议的ZigBee 模块3传输给电脑,通过电脑中的分析软件对采集的电信号进行存储和分析。 [0078] The step S4 = test data collecting module between stress and strain wire resistance strain gauge, the strain gauge for acquiring an electrical signal by the acquisition module, based on IEEE802.15.4 standard and low-power local area network protocol ZigBee module 3 is transmitted to a computer for storage and analysis of electrical signals collected by the computer analysis software. 所述采集模块采集=线电阻应变片的应力与应变之间测试数据包括: Test data between stress and strain of the acquisition module = wire resistance strain gauge comprising:

[0079] 结构静应力测试数据,是测试闽口在挡水过程中构件的应力应变增量数据;测定闽口受力构件从不受水荷载到额定水荷载的变化量; [0079] The data structure of the static stress test, stress test port member Min strain increments during retaining data; Min measured load port from the amount of change from water to water nominal load force component;

[0080] 所述运动状态结构应力测试数据,是测试闽口在开启和关闭过程中构件的应力应变变化数据;测定运动状态受力构件的应力应变过程线。 [0080] the motion state of structural stress test data, test port Min stress strain change data member in the process of opening and closing; motion state determination process of the stress-strain line of the force member.

[0081] 所述一种闽口原型应力应变测试方法包括W下组成部分(原理图示意图见图2): [0081] The one opening prototype Min stress-strain testing method comprising the components of W (schematic diagram is shown in Figure 2):

[0082] 1) S线电阻应变片1,型号为WFRA-6-11,通过测量电阻的变化而对应变进行测定, 输出电信号; [0082] 1) S 1 wire resistance strain gauge, Model WFRA-6-11, and the strain was measured by measuring the change in the electric signal output resistance;

[0083] 2)数据采集模块2,采集应变片输出的电信号; [0083] 2) data acquisition module 2, strain gauge output electrical signal acquisition;

[0084] 3)ZigBee模块3,基于IE邸802.15.4标准的低功耗局域网协议,用于接收采集模块采集到的电信号并通过USB传送至工作电脑; [0084] 3) ZigBee module 3, based on the IE Di 802.15.4 low-power local area network protocol, for receiving the electrical signal acquisition module and transmitted to the computer via the USB work;

[0085] 4)工作电脑4,接收Zi浊ee传送来的数据并进行存储和分析。 [0085] 4) work computer 4 receives turbidity data Zi and ee transmitted for storage and analysis.

[0086] 图9为一种闽口原型应力应变测试方法原理示意图。 [0086] FIG. 9 is a schematic diagram illustrating a stress-strain Min port prototype test method.

[0087] 实施例2 [0087] Example 2

[0088] 本实施例中的应力测试采用日本进口的水下S线电阻应变片(型号:WFRA-6-11)。 [0088] Stress Test present embodiment underwater wire resistance strain gauge S imported from Japan (model: WFRA-6-11). =线电阻应变片采用四线接法,该方法能有效降低和消除由于导线电阻、接触电阻等带来的应变测试误差。 = Wire strain gauges using four-wire connection, which can effectively reduce and eliminate wire resistance, contact resistance caused by strain measurement error.

[0089] 水工金属结构钢闽口静应力测试主要是测试闽口在挡水过程中构件的应力应变增量情况,测定闽口主要受力构件从不受水荷载到额定水荷载的变化量。 [0089] Min port hydraulic metal steel static stress test is a test where the incremental stress and strain in the retaining member Min opening process, the load from the measured amount of change from water to water nominal load force component main port Min .

[0090] 水工金属结构钢闽口动应力测试主要是测试闽口在开启和关闭过程中构件的应力应变变化情况,测定运动状态主要受力构件的应力应变过程线。 [0090] Hydraulic steel metal dynamic stress test is a test port Min Min port member strain stress changes in the opening and closing process, mainly by the motion determination process of the stress-strain line of the force member.

[0091] 水工金属结构钢闽口应力应变测试应根据W最少的测点达到足够真实地反映结构受力状态的原则,来选择测点。 [0091] Min port hydraulic metal steel to a sufficient stress-strain tests should reflect the true state of the principle of the force structure, the measuring point is selected according to W minimum measuring point. 通过预先对弧形闽口进行有限元(CFD)应力分析,找出结构的危险断面及危险位置,根据CFD应力分析成果和测试要求,结合工程实践经验最后选定测点。 Min arcuate in advance by the finite element port (CFD) stress analysis to identify the critical section and dangerous position of the structure, according to the results of stress analysis and CFD testing requirements, engineering practice experience last selected measuring point.

[0092] 各类应变片测量的应变与应力计算关系如下: [0092] The relationship between various types of strain and stress calculation strain gauge measurements are as follows:

[0093] a)单栅应变片应力应变关系见如下公式: [0093] a) a single-gate stress-strain relationship strain gauges see the following formula:

[0094] Ox=EXex.......................................(1) [0094] Ox = EXex ....................................... (1)

[0095] 式中:〇x--正应力,单位MPa [0095] wherein: 〇x-- positive stress, in MPa

[0096] E--弹性模量,单位G化 [0096] E-- elastic modulus, G units of

[0097] Ex--应变 [0097] Ex-- strain

[0098] b)双栅应变片应力应变关系见如下公式: [0098] b) a double gate stress-strain relationship strain gauges see the following formula:

Figure CN105716658AD00081

[0099] [0099]

[0100] W [0100] W

[0101] 式中:〇x、〇y--正应力,单位MPa [0101] wherein: 〇x, 〇y-- positive stress, in MPa

[0102] E--弹性模量,单位G化 [0102] E-- elastic modulus, G units of

[0103] Ex、Ey--应变 [0103] Ex, Ey-- strain

[0104] V--泊松比 [0104] V-- Poisson's ratio

[0105] c)S栅应变片应力应变与夹角关系见如下公式: [0105] c) S strain gage grid stress-strain relation with the angle, see the following formula:

Figure CN105716658AD00082

[0114] 式中:Omax, Omin--正应力,单位MPa[0115] E-弹性模量,单位G化[0116] Ex、Ey--应变[0117] V--泊松比 [0114] wherein: Omax, Omin-- normal stress, units MPa [0115] E- modulus of elasticity, the unit of G [0116] Ex, Ey-- strain [0117] V-- Poisson's ratio

[0106] [0106]

[0107] [0107]

[010 引 [010 Cited

[0109] [0109]

[0110] [0110]

[0111] [0111]

[0112] i [0112] i

[0113] [0113]

[011引Tmax,Txy--剪应力,单位MPa [011 cited Tmax, Txy-- shear stress in MPa

[0119] 0--主应力与X轴方向夹角 [0119] 0-- principal stress angle between the X-axis direction

[0120] 本实施例提供的泄洪桐弧形工作闽口原观应力测试方法,具有操作简单、抗干扰能力强、测量数据准确、测量成果显示直观等优点。 [0120] The present spillway Tong arcuate working prototype observation port Min Stress test method provided in this embodiment, simple operation, anti-interference ability, accurate measurement data, the measurement results of visual display advantages.

[0121] 本实施例提供的闽口原型应力应变测试的测点布置图如图2-7所示;其中,图2为泄洪桐弧形工作闽口上支臂及上主梁应力测点布置图;图3为泄洪桐弧形工作闽口下支臂及下主梁应力测点布置图;图4为泄洪桐弧形工作闽口口叶应力测点布置图;图5为泄洪桐弧形工作闽口上支臂及上主梁应力测点布置图;图6为泄洪桐弧形工作闽口下支臂及下主梁应力测点布置图;图7为泄洪桐弧形工作闽口口叶应力测点布置图;泄洪桐弧形工作闽口应力测点布置图中各测点部位描述如下: Discharge work Min Tong arcuate opening on the support arm and the upper girder FIG stress measuring points wherein FIG. 2; [0121] The present prototype Min stress-strain test port provided in the embodiment of the measuring points shown in Figure 2-7 in FIG. ; FIG. 3 is a spillway at Min Tong arcuate working port and the lower arm girder stress measuring points; Figure 4 is a spillway mouth Min Tong arcuate leaf work stress measuring points; Figure 5 is a curved work spillway Tong Min port on the stress measuring arm and the main beam spot arrangement; Figure 6 is a stress sensing arm and the lower girder arrangement of FIG point spillway Min Tong arcuate working port; FIG. 7 is a spillway mouth Min Tong arcuate leaf work stress FIG measuring points; each of the measuring points Min work arcuate portions Discharge port Tong stress measuring points as described in FIG:

[0122] 测点1(1-1):左上支臂第十一梁格(近支较)中部左翼板上,水流方向; [0122] measuring point 1 (1-1): upper left arm eleventh grillage (near shoring more) central Left panel, the direction of flow;

[0123] 测点2(1-2):左上支臂第十一梁格中部上腹板上,左侧,水流方向; [0123] measuring point 2 (1-2): upper left arm abdominal middle grillage eleventh plate, the left side, the direction of flow;

[0124] 测点3(1-3):左上支臂第十一梁格中部上腹板上,右侧,水流方向; [0124] 3-point (1-3): upper left arm plate eleventh abdominal middle grillage, the right, the direction of flow;

[0125] 测点4(1-4):左上支臂第十一梁格中部右翼板上,水流方向; [0125] 4 measuring points (1-4): upper left arm right middle grillage eleventh plate, the direction of flow;

[01%]测点5(1-5):左上支臂第屯梁格中部左翼板上,水流方向; [01%] 5-point (1-5): Central upper left arm of Tun grillage Left panel, the direction of flow;

[0127] 测点6(1-6):左上支臂第屯梁格中部上腹板上,左侧,水流方向; [0127] 6-point (1-6): Tun upper left arm of the middle grillage abdominal plate, the left side, the direction of flow;

[0128] 测点7(1-7):左上支臂第屯梁格中部上腹板上,右侧,水流方向; [0128] 7-point (1-7): Tun upper left arm of the middle grillage abdominal plate, a right side, the direction of flow;

[0129] 测点8(1-8):左上支臂第屯梁格中部右翼板上,水流方向; [0129] 8-point (1-8): Tun upper left arm of the middle grillage right panel, the direction of flow;

[0130] 测点9(2-1):左上支臂第二梁格中部左翼板上,水流方向; [0130] 9-point (2-1): Central upper left arm of the second frame beam Left panel, the direction of flow;

[0131] 测点10(2-2):左上支臂第二梁格中部上腹板上,左侧,水流方向; [0131] measuring point 10 (2-2): abdominal middle grillage second upper left arm plate, the left side, the direction of flow;

[0132] 测点11 (2-3):左上支臂第二梁格中部上腹板上,右侧,水流方向; [0132] measuring point 11 (2-3): abdominal middle grillage second upper left arm plate, the right, the direction of flow;

[0133] 测点12(2-4):左上支臂第二梁格中部右翼板上,水流方向; [0133] measuring point 12 (2-4): right middle grillage second plate, the flow direction of the left upper arm;

[0134] 测点13(2-5): 口叶左侧第二纵梁翼板上,上主梁上方第一梁格附近,竖向; [0134] measuring point 13 (2-5): second port left lobe stringer wing panel, a first upper girder grillage near the top, the vertical;

[01巧]测点14(2-6):上主梁后翼板左支臂左侧上,45度; [01 Qiao] measuring point 14 (2-6): After the main beam on the left branch of the left wing arm 45 degrees;

[0136] 测点15(2-7):上主梁后翼板左支臂左侧上,竖向; [0136] measuring point 15 (2-7): After the main beam on the left branch of the left blade arm, the vertical;

[0137] 测点16(2-8):上主梁后翼板左支臂左侧上,横向; [0137] measuring point 16 (2-8): After the main beam on the left branch of the left wing arm laterally;

[0138] 测点17(3-1):上主梁后翼板口叶中屯、线右侧上,竖向; [0138] measuring point 17 (3-1): After the main beam on the port wing leaf village, the line on the right side, the vertical;

[0139] 测点18(3-2):上主梁后翼板口叶中屯、线右侧上,横向; [0139] measuring point 18 (3-2): After the main beam on the port wing leaf village, on the right side line, transverse;

[0140] 测点19(3-3):上主梁后翼板口叶中屯、线左侧上,竖向; [0140] measuring point 19 (3-3): After the main beam on the port wing leaf village, the line on the left side, the vertical;

[0141] 测点20(3-4):上主梁后翼板口叶中屯、线左侧上,横向; [0141] measuring point 20 (3-4): After the main beam on the port wing leaf village, on the left side line, transverse;

[0142] 测点21(3-5):上主梁自右向左第五梁格腹板中部,横向; [0142] measuring point 21 (3-5): from right to left on the main girder grillage fifth central web, lateral;

[0143] 测点22(3-6):上主梁自右向左第五梁格腹板中部,竖向; [0143] measuring point 22 (3-6): from right to left on the main girder grillage fifth central web, the vertical;

[0144] 测点23(3-7):上主梁上部第一小横梁后翼板,左侧第四梁格内,竖向; [0144] measuring point 23 (3-7): After the main beam on an upper cross member of the first small wing, the left fourth grillage, vertical;

[0145] 测点24(3-8):上主梁上部第一小横梁后翼板,左侧第四梁格内,横向; [0145] measuring point 24 (3-8): After the main beam on an upper cross member of the first small wing, the left fourth grid beams transverse;

[0146] 测点25(4-1):右上支臂第二梁格中部左翼板上,水流方向; [0146] measuring point 25 (4-1): Central upper right arm of the second frame beam Left panel, the direction of flow;

[0147] 测点26(4-2):右上支臂第二梁格中部上腹板上,左侧,水流方向; [0147] measuring point 26 (4-2): an upper right arm of the second frame beam abdominal middle plate, the left, the direction of flow;

[014引测点27(4-3):右上支臂第二梁格中部上腹板上,右侧,水流方向; [27-point lead 014 (4-3): abdominal middle grillage second upper right arm plate, right side, the direction of flow;

[0149] 测点28(4-4):右上支臂第二梁格中部右翼板上,水流方向; [0149] measuring point 28 (4-4): right middle grillage second plate, the flow direction of the upper right arm;

[0150] 测点29(4-5): 口叶右侧第二纵梁翼板上,上主梁上方第一梁格附近,竖向; [0150] measuring point 29 (4-5): right wing stringer port leaves the second board, the main beam near the first beam over the grid, the vertical;

[0151] 测点30(4-6): 口叶右侧第二纵梁翼板上,上主梁上方第一梁格附近,竖向; [0151] measuring point 30 (4-6): right wing stringer port leaves the second board, the main beam above the first grid beam near the vertical;

[0152] 巧U点31(4-7):上支臂加强连接杆右侧,竖向; [0152] Qiao U point 31 (4-7): On the right side of the connecting rod reinforcing arm, the vertical;

[0153] 测点32(4-8):上支臂加强连接杆右侧,横向; [0153] measuring point 32 (4-8): On the right side of the connecting rod arm reinforcing, transverse;

[0154] 测点33(5-1):下主梁自右向左第四梁格腹板中部,横向; [0154] measuring point 33 (5-1): the main beam from right to left fourth grillage central web, lateral;

[01W]测点34(5-2):下主梁自右向左第四梁格腹板中部,45度; [01W] measuring point 34 (5-2): the main beam from right to left middle grillage fourth webs 45 degrees;

[0156] 测点35(5-3):下主梁自右向左第四梁格腹板中部,竖向; [0156] measuring point 35 (5-3): the main beam from right to left fourth grillage central web, the vertical;

[0157] 测点36(5-4): 口叶左侧第二纵梁翼板上,下主梁上方第二梁格附近,竖向; [0157] measuring point 36 (5-4): second port left lobe stringer wing panel, above the lower grid main beam near the second beam, the vertical;

[015引测点37(5-5):左下支臂第二梁格中部左翼板上,水流方向; [37-point lead 015 (5-5): lower left arm of the second middle grillage Left panel, the direction of flow;

[0159] 测点38(5-6):左下支臂第二梁格中部上腹板上,左侧,水流方向; [0159] measuring point 38 (5-6): a second plate the lower left abdominal middle grillage arm, the left, the direction of flow;

[0160] 测点39(5-7):左下支臂第二梁格中部上腹板上,右侧,水流方向; [0160] measuring point 39 (5-7): a second lower left arm plate abdominal middle grillage, right, the direction of flow;

[0161] 测点40(5-8):左下支臂第二梁格中部右翼板上,水流方向; [0161] measuring point 40 (5-8): right middle grillage second plate, the flow direction of the lower left arm;

[016^ 点41 (6-1):闽口左侧吊耳左侧,竖向; [016 ^ point 41 (6-1): Min left port lug left vertical;

[01创点42(6-2):闽口左侧吊耳左侧,竖向; [01 Chong point 42 (6-2): Min left port lug left vertical;

[0164] 测点43(6-3):闽口左侧吊耳左侧,竖向; [0164] measuring point 43 (6-3): Min left port lug left vertical;

[01化]则点44(6-4):闽口左侧吊耳右侧,竖向; [Of 01] the point 44 (6-4): Min left port lug right vertical;

[0166] 点45(6-5):闽口左侧吊耳右侧,竖向; [0166] Point 45 (6-5): Min left port lug right vertical;

[0167] 则点46(6-6):闽口左侧吊耳右侧,竖向; [0167] the point 46 (6-6): Min left port lug right vertical;

[0168] 测点47(6-7):闽口顶端止水橡皮附近小横梁翼板,口叶中屯、线上,横向; [0168] measuring point 47 (6-7): Min mouth seal near the top blade small rubber beam, Tun leaves port, line, transverse;

[0169] 巧U点48(6-8):闽口顶端小横梁上翼板,口叶中屯、线上,横向; [0169] Qiao U point 48 (6-8): Min port on the top flap small beams, Tun leaves port, line, transverse;

[0170] 巧U点49(7-1):下主梁上部第S梁格内面板,左侧第四梁格内,竖向; [0170] Qiao U point 49 (7-1): an upper portion of the main girder grillage first inner panel S, the left fourth grillage, vertical;

[0171] 测点50(7-2):下主梁上部第S梁格内面板,左侧第四梁格内,45度; [0171] measuring point 50 (7-2): an upper portion of the main girder grillage first inner panel S, the left fourth grillage, 45 degrees;

[0172] 测点51(7-3):下主梁上部第S梁格内面板,左侧第四梁格内,横向; [0172] measuring point 51 (7-3): an upper portion of the lower girder grillage S of the inner panel, the left side of the fourth grid beams transverse;

[0173] 测点52(7-4):下主梁上部第二梁格内面板,左侧第四梁格内,竖向; [0173] measuring point 52 (7-4): an upper portion of the main girder grillage the second panel, the left fourth grillage, vertical;

[0174] 测点53(7-5):下主梁上部第二梁格内面板,左侧第四梁格内,45度; [0174] measuring point 53 (7-5): an upper portion of the main girder grillage the second panel, the left fourth grillage, 45 degrees;

[0175] 测点54(7-6):下主梁上部第二梁格内面板,左侧第四梁格内,横向; [0175] measuring point 54 (7-6): an upper panel of the second beam at grid main beam, the left fourth grid beams transverse;

[0176] 测点55(7-7):下主梁后翼板口叶中屯、线上,横向; [0176] measuring point 55 (7-7): After the main beam leaves port wing Tun, line, transverse;

[0177] 测点56(7-8): 口叶左侧第=纵梁翼板上,下主梁上方第五梁格附近,竖向; [0177] measuring point 56 (7-8): port = left lobe of the stringer wing plate, the upper girder grillage fifth near the vertical;

[0178] 测点57(8-1):右下支臂第二梁格中部左翼板上,水流方向; [0178] measuring point 57 (8-1): the lower right arm of the second middle grillage Left panel, the direction of flow;

[0179] 测点58(8-2):右下支臂第二梁格中部上腹板上,左侧,水流方向; [0179] measuring point 58 (8-2): The second middle grillage abdominal right lower arm plate, a left side, the direction of flow;

[0180] 测点59(8-3):右下支臂第二梁格中部上腹板上,右侧,水流方向; [0180] measuring point 59 (8-3): The second middle grillage abdominal right lower arm plate, a right side, the direction of flow;

[0181] 测点60(8-4):右下支臂第二梁格中部右翼板上,水流方向; [0181] measuring point 60 (8-4): right middle grillage second plate, the flow direction of the right lower arm;

[0182] 测点61(8-5):下主梁上部第S梁格内面板,右侧第二梁格内,竖向; [0182] measuring point 61 (8-5): an upper portion of the main girder grillage first inner panel S, the right side of the second grid beam, the vertical;

[0183] 测点62(8-6):下主梁上部第S梁格内面板,右侧第二梁格内,45度; [0183] measuring point 62 (8-6): an upper portion of the main girder grillage inner panel section S, the right side of the second grid beam 45 degrees;

[0184] 测点63(8-7):下主梁上部第S梁格内面板,右侧第二梁格内,横向; [0184] measuring point 63 (8-7): an upper portion of the main girder grillage inner panel section S, the right side of the second grid beams transverse;

[0185] 测点64(8-8): 口叶右侧第一纵梁翼板上,下主梁上方第二梁格附近,竖向。 [0185] measuring point 64 (8-8): a first right side opening leaf stringer wing plate, a second near the top of the main girder grillage, vertical.

[0186] 上述测点是利用各结构与载荷的对称性,从而减少测点数目,减轻工作量。 [0186] The structure of each measuring point is the use of symmetry of the load, thereby reducing the number of measurement points, to reduce the workload. 达到了W最少的测点就能足够真实地反映结构受力状态。 W reached the minimum measuring points can be enough to truly reflect the structure of the stress state.

[0187] W上实施例仅为本发明的一种实施方式,其描述较为具体和详细,但不能因此而理解为对本发明专利范围的限制。 [0187] Example W on merely one embodiment of the present invention, and detailed description thereof is more specific, but can not therefore be understood as limiting the scope of the present invention. 其具体结构和尺寸可根据实际需要进行相应的调整。 Specific structure and size can be adjusted according to actual needs. 应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可W做出若干变形和改进,运些都属于本发明的保护范围。 It should be noted that those of ordinary skill in the art, without departing from the inventive concept premise, W may make various modifications and improvements fall within the protection scope of some operation of the present invention.

Claims (10)

1. 一种闸门原型应力应变测试方法,其特征在于,包括以下步骤: S1:获取水工金属结构钢闸门结构特征部位; S2:根据结构特征部位确定水工金属结构钢闸门应力应变测点; S3:在应变测点采用四线接法布设三线电阻应变片; S4:采集三线电阻应变片应力与应变之间的测试数据。 A prototype shutter stress-strain testing method, characterized by comprising the steps of: S1: obtaining structural characteristics of hydraulic steel gate metal structure parts; S2: determining steel hydraulic metal gate structure according to the stress-strain-point feature portion; S3: four-wire connection wire strain gauges laid three strain measurement points; S4: collecting three test data lines between stress and strain resistance strain gauges.
2. 根据权利要求1所述的闸门原型应力应变测试方法,其特征在于,所述步骤S1获取水工金属结构钢闸门结构特征部位,是通过预先对弧形闸门进行有限元CH)应力分析来获取水工金属结构钢闸门结构的危险断面及危险位置;所述水工金属结构钢闸门结构特征部位具体包括上主梁、下主梁、上支臂、下支臂、面板和吊耳。 The gate of the prototype stress-strain test to claim 1, characterized in that said acquiring step S1 hydraulic metal gate structure wherein the structural steel parts, the stress analysis of the pre-arc gate finite element CH) to Get steel hydraulic metal gate structure dangerous section and the position of the danger; the hydraulic metal steel gate structures wherein the portion of the structure comprises a main beam, the main beam, upper arm, lower arm, lug and the panel.
3. 根据权利要求1所述的闸门原型应力应变测试方法,其特征在于,所述步骤S2根据结构特征部位确定水工金属结构钢闸门应力应变测点是根据钢闸门结构特征部位的位置及结构形式来选取应力应变测点;所述水工金属结构钢闸门应力应变测点包括主梁应力应变测点布置、上支臂应力应变测点布置、下支臂应力应变测点布置、面板应力应变测点布置以及吊耳应力应变测点布置。 The stress-strain shutter prototype testing method according to claim 1, wherein said step of determining the configuration of characteristic portions S2 hydraulic steel gate metal structure is a stress-strain measurement point position and the structure of the structural characteristics of steel gate portion in the form of stress and strain to select measuring points; hydraulic metal structure of the steel stress-strain-point gate comprising a main girder stress-strain measuring points, on the support arm stress strain measuring points, the lower arm stress strain measuring points, the panel stress strain measuring points and lifting lugs measuring points of stress and strain.
4. 根据权利要求1所述的闸门原型应力应变测试方法,其特征在于,所述步骤S3中的三线电阻应变片的布设按以下方式进行:所述应变片一端通过rl与R4-端连接;所述R4的另一端通过r3与应变片的另一端连接;所述应变片的另一端还通过r2与串联的R2和R3连接; 所述r 1与R4连接公共点与R2和R3连接公共点作为输出端; 所述输出端的输出电信号输送到数据采集模块; 所述数据采集模块将采集到的电信号通过ZigBee传输数据; 其中, rl表示应变片导线电阻; r2表示应变片导线电阻; r3表示应变片导线电阻; R1表示惠斯通电桥桥臂电阻; R2表示惠斯通电桥桥臂电阻; R3表示惠斯通电桥桥臂电阻; Rg表不应变片电阻。 The gate of the prototype of a stress-strain test method of claim 1, wherein said laying step S3 three-wire resistance strain gauge in the following manner: one end connected to the strain gauge through the R4- rl end; the other end of R4 is connected to the other end of the strain gauge and r3; the other end of the strain gauge is also connected through the series combination of R2 and r2 R3; r 1 and R4 is connected to the common point is connected to the common point R2 and R3 as an output terminal; output electrical signals supplied to the output terminal of the data acquisition module; said data collection module to collect the electrical signal transmitted through ZigBee data; wherein, rl represents the wire resistance strain gauge; R2 represents a wire resistance strain gauge; R3 It represents the wire resistance strain gauge; Rl represents a bridge arm of the Wheatstone bridge resistors; R2 represents a bridge arm of the Wheatstone bridge resistors; R3 represents a bridge arm of the Wheatstone bridge resistance; Rg table does gauge resistance.
5. 根据权利要求1所述的闸门原型应力应变测试方法,其特征在于,所述步骤S4采集模块采集三线电阻应变片的应力与应变之间测试数据是通过数据采集模块来采集应变片的电信号,然后基于IEEE802.15.4标准的低功耗局域网协议的ZigBee模块进行传输;所述测试数据包括结构静应力测试数据和所述运动状态结构应力测试数据; 所述结构静应力测试数据,是测试闸门在挡水过程中构件的应力应变增量数据;测定闸门受力构件从不受水荷载到额定水荷载的变化量; 所述运动状态结构应力测试数据,是测试闸门在开启和关闭过程中构件的应力应变变化数据;测定运动状态受力构件的应力应变过程线。 The stress-strain shutter prototype testing method according to claim 1, wherein said step S4 test data collecting module between stress and strain three-wire resistance strain gauge is an electrical strain gauge is acquired by the data acquisition module signal, then the transmission module based on the ZigBee standard IEEE802.15.4 low-power local area network protocol; said test data structure comprises a static stress test data and the motion state of structural stress test data; said data structure static stress tests, test incremental stress-strain data during the shutter in the retaining member; Determination of the shutter member the force load from the amount of change from water to the rated load of water; the motion state of structural stress test data, test the shutter opening and closing process stress-strain variation data member; stress - strain measurement line motion force member.
6. -种闸门原型应力应变测试系统,其特征在于,包括三线电阻应变片、数据采集模块、ZigBee模块和处理器; 所述三线电阻应变片设置于水工金属结构钢闸门结构特征部位上; 所述数据采集模块与三线电阻应变片连接用于采集应变片输出的电信号; 所述ZigBee模块与数据采集模块连接,用于接收采集模块采集到的电信号并将电信号传输到处理器中; 所述处理器用于接收ZigBee模块传送来的数据并进行存储和分析。 6. - kind of stress-strain testing prototype shutter system comprising three-wire resistance strain gauge data acquisition module, ZigBee module and a processor; and the three-wire resistance strain gauge is provided on a portion of hydraulic steel gate structures wherein the metal structure; the data acquisition module and the three-wire strain gauges are connected to the strain gauge output signal acquisition; ZigBee module and the data acquisition module is connected, for receiving electrical signals and transmitting electrical signals to the collection module to the processor ; the processor for receiving data transmitted and ZigBee module for storage and analysis.
7. 根据权利要求6所述的闸门原型应力应变测试系统,其特征在于,所述三线电阻应变片按以下方式设置: 所述应变片一端通过rl与R4-端连接;所述R4的另一端通过r3与应变片的另一端连接;所述应变片的另一端还通过r2与串联的R2和R3连接;所述rl与R4连接公共点与R2和R3 连接公共点作为输出端; 所述输出端的输出电信号输送到数据采集模块; 所述数据采集模块将采集到的电信号通过ZigBee传输数据; 其中, rl表示应变片导线电阻; r2表示应变片导线电阻; r3表示应变片导线电阻; R1表示惠斯通电桥桥臂电阻; R2表示惠斯通电桥桥臂电阻; R3表示惠斯通电桥桥臂电阻; Rg表不应变片电阻。 7. The stress-strain shutter prototype test system according to claim 6, wherein the three-wire resistance strain gauge is provided in the following manner: one end connected to the strain gauge through the R4- rl end; the other end of the R4 r3 connected to the other end of the strain gauge; the other end of the strain plate is also connected in series R2 and R3 via R2; rl and R4 is connected to the common point of R2 and R3 as an output terminal connected to a common point; the output the electrical signal delivered to the output terminal of the data acquisition module; said data collection module to collect the electrical signal transmitted through ZigBee data; wherein, rl represents the wire resistance strain gauge; R2 represents a resistance wire strain gauge; R3 represents a wire resistance strain gauge; Rl It represents a bridge arm of the Wheatstone bridge resistors; R2 represents a bridge arm of the Wheatstone bridge resistors; R3 represents a bridge arm of the Wheatstone bridge resistance; Rg table does gauge resistance.
8. 根据权利要求6所述的闸门原型应力应变测试系统,其特征在于,所述三线电阻应变片设置的测点是根据水工金属结构钢闸门结构特征部位的各结构与载荷的对称性进行布设。 The stress-strain shutter prototype test system according to claim 6, wherein the three-point resistance wire strain gauge is arranged according to the load of the respective structural symmetry of hydraulic gate metal steel parts of structural features layout.
9. 根据权利要求6所述的闸门原型应力应变测试系统,其特征在于,所述水工金属结构钢闸门结构特征部位是通过预先对弧形闸门进行有限元CH)应力分析来获取水工金属结构钢闸门结构的危险断面及危险位置;所述水工金属结构钢闸门结构特征部位具体包括上主梁、下主梁、上支臂、下支臂、面板和吊耳。 9. The prototype shutter stress-strain testing system according to claim 6, wherein said hydraulic steel gate metal structure is a structure wherein parts of the metal to obtain hydraulic stress analysis in advance by the finite element arcuate shutter CH) dangerous section and the position of the gate structure hazardous structural steel; hydraulic said metal portion steel gate structures wherein the structure comprises a main beam, the main beam, upper arm, lower arm, lug and the panel.
10. 根据权利要求9所述的闸门原型应力应变测试系统,其特征在于,所述根据结构特征部位确定水工金属结构钢闸门应力应变测点是根据钢闸门结构特征部位的位置及结构形式来选取应力应变测点;所述水工金属结构钢闸门应力应变测点包括主梁应力应变测点布置、上支臂应力应变测点布置、下支臂应力应变测点布置、面板应力应变测点布置以及吊耳应力应变测点布置。 Gate according to claim prototype stress-strain testing system according to claim 9, wherein said determining hydraulic steel gate metal structure is a stress-strain measurement points according to the position and configuration of the structural features of the steel parts form a structure wherein the gate portion select stress strain measuring point; hydraulic metal structure of the steel stress-strain-point gate comprising a main girder stress-strain measuring points, on the support arm stress strain measuring points, the lower arm stress strain measuring points, the stress-strain-point panel and lug arrangement stress strain measuring points.
CN201610118096.0A 2016-03-03 2016-03-03 Prototype stress strain testing method and system for gate CN105716658A (en)

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