CN110749407B - System and method for testing low-cycle repeated load anti-seismic performance of composite wall structure - Google Patents
System and method for testing low-cycle repeated load anti-seismic performance of composite wall structure Download PDFInfo
- Publication number
- CN110749407B CN110749407B CN201911038154.9A CN201911038154A CN110749407B CN 110749407 B CN110749407 B CN 110749407B CN 201911038154 A CN201911038154 A CN 201911038154A CN 110749407 B CN110749407 B CN 110749407B
- Authority
- CN
- China
- Prior art keywords
- data
- wall body
- module
- acceleration
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
Abstract
The utility model provides a low week of composite wall structure is load anti-seismic performance test system and method repeatedly, relates to composite wall structure test technical field, includes: a test bench; the data acquisition module is arranged on the test board and used for acquiring test data of the tested wall; the data processing module is used for integrating the test data of the tested wall body collected by the data collecting module and inputting the integrated data into the data comparison module; the data presetting module is used for inputting preset parameter data of the wall body and inputting the preset parameter data of the wall body into the data comparison module; the data comparison module is used for comparing the test data of the tested wall body with the preset parameter data of the wall body; the data analysis module is used for analyzing the data comparison result output by the data comparison module and judging whether the anti-seismic performance of the wall body meets the requirement or not according to the comparison result of the two data.
Description
Technical Field
The invention belongs to the technical field of composite wall structure testing, and particularly relates to a system and a method for testing low-cycle repeated load anti-seismic performance of a composite wall structure.
Background
The wall panel is divided into an inner wall panel and an outer wall panel according to the building function, wherein the inner wall panel is mainly used as a bearing component and is made of a single material, the outer wall panel is generally a non-bearing wall panel and has the functions of heat preservation, heat insulation, water resistance and the like, the structure is relatively complex, some composite wall panels are made of multiple materials, in order to enhance the bearing strength of the composite strong wall panel, the composite wall panel is usually matched with an assembled light steel frame for use, and after the composite wall structure is manufactured, the low-cycle repeated anti-seismic load performance of the composite wall panel needs to be tested;
however, most of the existing testing methods place the composite wall structure with the assembled light steel frame on a testing table for testing, and detect and record the anti-seismic performance of the composite wall structure with the assembled light steel frame in the vibration process, but such testing methods have single function and single testing range, and are difficult to reflect the real performance of the composite wall structure in the practical application process.
Disclosure of Invention
The invention aims to provide a system and a method for testing the low-cycle repeated load anti-seismic performance of a composite wall structure, aiming at the defects in the prior art, so that the situation of the composite wall structure in the practical application process is simulated from multiple aspects for testing, and the test result is closer to the real situation.
In order to achieve the above object, the present invention provides a system for testing low-cycle repetitive load anti-seismic performance of a composite wall structure, comprising:
a test bench;
the data acquisition module is arranged on the test board and used for acquiring test data of the tested wall;
the data processing module is used for integrating the test data of the tested wall body collected by the data collecting module and inputting the integrated data into the data comparison module;
the data presetting module is used for inputting preset parameter data of the wall body and inputting the preset parameter data of the wall body into the data comparison module;
the data comparison module is used for comparing the test data of the tested wall body with the preset parameter data of the wall body;
and the data analysis module is used for analyzing the data comparison result output by the data comparison module and judging whether the anti-seismic performance of the wall body meets the requirement or not according to the comparison result of the two data.
Optionally, a fixed groove is formed in the top of the test board, a movable plate is installed in the fixed groove, an installation plate is connected to the top of the movable plate, springs are arranged on two sides of the movable plate, a motor groove is formed in one side of the fixed groove, a motor is arranged in the motor groove, a cam is installed on a motor output shaft and is in contact with the installation plate, a fan is arranged on one side of the top of the test board, and a plurality of hanging blocks are arranged on one side of the top of the test board.
Optionally, a wall body is installed above the installation plate, one end of the spring is fixedly connected with the inner wall of the fixed groove, the movable plate is in sliding fit with the fixed groove, and the shape of the cam is matched with that of the contact position of the installation plate.
Optionally, the data acquisition module includes an acceleration acquisition unit and a strain value acquisition unit, which are respectively used for acquiring acceleration data and strain value data of the tested wall.
Optionally, the acceleration acquisition unit includes an acceleration sensor, and a plurality of acceleration sensors are installed on the wall body, the strain value acquisition unit includes a strain gauge, and a plurality of strain gauges are installed on the wall body.
Optionally, the data presetting module includes an acceleration presetting unit and a strain value presetting unit, which are respectively used for inputting acceleration preset data and strain value preset data of the wall.
Optionally, the data comparison module includes an acceleration comparison unit and a strain value comparison unit, which are respectively used for comparing the acceleration data and the strain value data of the tested wall with the acceleration preset data and the strain value preset data of the wall.
Optionally, the data processing module, the data presetting module, the data comparison module and the data analysis module may be separate modules, or may be implemented in a software form by a computer, and the computer is disposed on one side above the test board.
Optionally, the acceleration sensor and the strain gauge are both electrically connected to the data acquisition module, the data acquisition module is electrically connected to the data processing module, the data processing module and the data presetting module are both electrically connected to the data comparison module, and the data comparison module is electrically connected to the data analysis module.
The invention also provides a method for testing the low-cycle repeated load anti-seismic performance of the composite wall structure, which comprises the following steps:
and 4, adding wind load analysis: starting a fan to blow air to the wall body, repeating the step 2, testing the acceleration and the strain value of the wall body again when the wall body is influenced by wind power, then repeating the step 3, comparing and analyzing the test result again, and judging whether the anti-seismic performance test of the wall body is up to the requirement when the wall body is influenced by the wind power;
The invention provides a system and a method for testing low-cycle repeated load anti-seismic performance of a composite wall structure, which have the beneficial effects that: the motor and the cam drive the movable plate to reciprocate under the action of the spring, so as to drive the mounting plate and the wall to vibrate, the acceleration data and the strain value data of different positions on the wall are collected through the acceleration sensors and the strain gauges on the wall and are input into the computer for comparison and analysis, the fan can be started to simulate the condition of the wall when receiving wind load in the test process for testing, comparison and analysis, the anti-seismic performance of the wall is further judged, the loading block can be added on the wall to simulate the condition of the wall when receiving heavy load for testing, comparison and analysis, the anti-seismic performance of the wall is further judged, the anti-seismic performance of the wall under the preset earthquake condition is objectively and quantitatively obtained through the anti-seismic performance test under different conditions in multiple aspects, and the real anti-seismic performance of the wall in the actual application process can be further reflected.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic structural diagram of a low-cycle repetitive load anti-seismic performance testing system of a composite wall structure according to an embodiment of the invention.
Fig. 2 shows a schematic block diagram of a low-cycle repetitive load anti-seismic performance testing system of a composite wall structure according to an embodiment of the invention.
Fig. 3 shows a schematic block diagram of a data acquisition module of a low-cycle repetitive load anti-seismic performance testing system of a composite wall structure according to an embodiment of the invention.
Fig. 4 shows a schematic block diagram of a data comparison module of a low-cycle repetitive load anti-seismic performance test system of a composite wall structure according to an embodiment of the invention.
Fig. 5 is a schematic block diagram illustrating a data presetting module of a low-cycle repetitive load anti-seismic performance testing system of a composite wall structure according to an embodiment of the invention.
Description of reference numerals:
1. a test bench; 2. mounting a plate; 3. a motor; 4. a cam; 5. a computer; 6. a wall body; 7. an acceleration sensor; 8. a strain gauge; 9. a fan; 10. mounting a block; 11. fixing grooves; 12. moving the plate; 13. a spring; 14. a motor groove.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a low-cycle repeated load anti-seismic performance test system of a composite wall structure, which comprises:
a test bench;
the data acquisition module is arranged on the test board and used for acquiring test data of the tested wall;
the data processing module is used for integrating the test data of the tested wall body collected by the data collecting module and inputting the integrated data into the data comparison module;
the data presetting module is used for inputting preset parameter data of the wall body and inputting the preset parameter data of the wall body into the data comparison module;
the data comparison module is used for comparing the test data of the tested wall body with the preset parameter data of the wall body;
and the data analysis module is used for analyzing the data comparison result output by the data comparison module and judging whether the anti-seismic performance of the wall body meets the requirement or not according to the comparison result of the two data.
Optionally, a fixed groove is formed in the top of the test board, a movable plate is installed in the fixed groove, an installation plate is connected to the top of the movable plate, springs are arranged on two sides of the movable plate, a motor groove is formed in one side of the fixed groove, a motor is arranged in the motor groove, a cam is installed on a motor output shaft and is in contact with the installation plate, a fan is arranged on one side of the top of the test board, and a plurality of hanging blocks are arranged on one side of the top of the test board.
The motor drives the cam to rotate, the movable plate is driven to reciprocate in the fixed groove through the cooperation of the cam and the movable plate, the vibration frequency can be increased due to the arrangement of the spring, the fan can provide wind load, and the mounting block can provide heavy load for a tested wall body.
Optionally, a wall body is installed above the installation plate, one end of the spring is fixedly connected with the inner wall of the fixed groove, the movable plate is in sliding fit with the fixed groove, and the shape of the cam is matched with that of the contact position of the installation plate.
The wall body is arranged on the mounting plate and can move along with the moving plate, so that the vibration environment is simulated.
Optionally, the data acquisition module includes an acceleration acquisition unit and a strain value acquisition unit, which are respectively used for acquiring acceleration data and strain value data of the tested wall.
Optionally, the acceleration acquisition unit includes an acceleration sensor, and a plurality of acceleration sensors are installed on the wall body, the strain value acquisition unit includes a strain gauge, and a plurality of strain gauges are installed on the wall body.
Acceleration data of different positions on the wall body can be measured through the arrangement of the acceleration sensors, and strain value data of different positions on the wall body in the vibration process can be measured through the arrangement of the strain gauges.
Optionally, the data presetting module includes an acceleration presetting unit and a strain value presetting unit, which are respectively used for inputting acceleration preset data and strain value preset data of the wall.
The acceleration presetting unit and the strain value presetting unit in the data presetting unit can respectively input acceleration presetting data and strain value presetting data so as to compare the measured acceleration data with the strain value data.
Optionally, the data comparison module includes an acceleration comparison unit and a strain value comparison unit, which are respectively used for comparing the acceleration data and the strain value data of the tested wall with the acceleration preset data and the strain value preset data of the wall.
The comparison of the acceleration data and the strain value data of the tested wall body with the acceleration preset data and the strain value preset data of the wall body can facilitate the analysis of the data and improve the accuracy of data analysis.
Optionally, the data processing module, the data presetting module, the data comparison module and the data analysis module may be separate modules, or may be implemented in a software form by a computer, and the computer is disposed on one side above the test board.
The computer sets up on the testboard, forms the integral type structure, can save space, conveniently observes test process, convenient operation.
Optionally, the acceleration sensor and the strain gauge are both electrically connected to the data acquisition module, the data acquisition module is electrically connected to the data processing module, the data processing module and the data presetting module are both electrically connected to the data comparison module, and the data comparison module is electrically connected to the data analysis module.
The invention also provides a method for testing the low-cycle repeated load anti-seismic performance of the composite wall structure, which comprises the following steps:
and 4, adding wind load analysis: starting a fan to blow air to the wall body, repeating the step 2, testing the acceleration and the strain value of the wall body again when the wall body is influenced by wind power, then repeating the step 3, comparing and analyzing the test result again, and judging whether the anti-seismic performance test of the wall body is up to the requirement when the wall body is influenced by the wind power;
Examples
As shown in fig. 1 to 5, the present invention provides a system for testing low-cycle repetitive load and seismic performance of a composite wall structure, the system comprising:
a test bench 1;
the data acquisition module is arranged on the test board 1 and used for acquiring test data of the tested wall;
the data processing module is used for integrating the test data of the tested wall body collected by the data collecting module and inputting the integrated data into the data comparison module;
the data presetting module is used for inputting preset parameter data of the wall body and inputting the preset parameter data of the wall body into the data comparison module;
the data comparison module is used for comparing the test data of the tested wall body with the preset parameter data of the wall body;
and the data analysis module is used for analyzing the data comparison result output by the data comparison module and judging whether the anti-seismic performance of the wall body meets the requirement or not according to the comparison result of the two data.
In this embodiment, fixed slot 11 has been seted up at the top of testboard 1, install movable plate 12 in the fixed slot 11, the top of movable plate 12 is connected with mounting panel 2, movable plate 12 both sides all are provided with spring 13, fixed slot 11 one side is provided with motor groove 14 inside is provided with motor 3, install cam 4 on the motor 3 output shaft, cam 4 contacts with mounting panel 2, 1 top one side of testboard is provided with fan 9, 1 top one side of testboard is provided with a plurality of carry pieces 10.
In this embodiment, the wall body 6 is installed above the mounting plate 2, one end of the spring 13 is fixedly connected with the inner wall of the fixing groove 11, the moving plate 12 is in sliding fit with the fixing groove 11, and the shape of the cam 4 is matched with the shape of the contact part of the mounting plate 2.
In this embodiment, the data acquisition module includes an acceleration acquisition unit and a strain value acquisition unit, which are respectively used for acquiring acceleration data and strain value data of the tested wall.
In this embodiment, the acceleration acquisition unit includes acceleration sensor 7, and a plurality of acceleration sensor 7 are installed on wall 6, the strain value acquisition unit includes foil gage 8, and a plurality of foil gages 8 are installed on wall 6.
In this embodiment, the data presetting module includes an acceleration presetting unit and a strain value presetting unit, which are respectively used for inputting acceleration presetting data and strain value presetting data of the wall body.
In this embodiment, the data comparison module includes an acceleration comparison unit and a strain value comparison unit, which are respectively used for comparing the acceleration data and the strain value data of the tested wall body with the acceleration preset data and the strain value preset data of the wall body.
In this embodiment, the data processing module, the data presetting module, the data comparison module and the data analysis module may be separate modules, or may be implemented in a software form by a computer 5, and the computer 5 is disposed on one side above the test board 1.
In this embodiment, the acceleration sensor 7 and the strain gauge 8 are electrically connected to the data acquisition module, the data acquisition module is electrically connected to the data processing module, the data processing module and the data presetting module are electrically connected to the data comparison module, and the data comparison module is electrically connected to the data analysis module.
The embodiment also provides a method for testing the low-cycle repeated load anti-seismic performance of the composite wall structure, which comprises the following steps:
and 4, adding wind load analysis: starting a fan 9 to blow air to the wall body 6, repeating the step 2, testing the acceleration and the strain value of the wall body 6 again when the wall body 6 is influenced by wind power, then repeating the step 3, comparing and analyzing the test result again, judging whether the anti-seismic performance test of the wall body 6 under the influence of the wind power meets the requirement, and if the maximum value of the acceleration and the maximum value of the strain value on the wall body 6 are smaller than the preset value, judging that the anti-seismic performance of the wall body 6 under the wind load meets the requirement;
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (8)
1. The utility model provides a low week of composite wall structure is load anti-seismic performance test system repeatedly which characterized in that, this system includes:
a test bench (1);
the data acquisition module is arranged on the test board (1) and used for acquiring test data of the tested wall;
the data processing module is used for integrating the test data of the tested wall body collected by the data collecting module and inputting the integrated data into the data comparison module;
the data presetting module is used for inputting preset parameter data of the wall body and inputting the preset parameter data of the wall body into the data comparison module;
the data comparison module is used for comparing the test data of the tested wall body with the preset parameter data of the wall body;
the data analysis module is used for analyzing the data comparison result output by the data comparison module and judging whether the anti-seismic performance of the wall body meets the requirement or not according to the comparison result of the two data;
the testing platform is characterized in that a fixed groove (11) is formed in the top of the testing platform (1), a movable plate (12) is installed in the fixed groove (11), the top of the movable plate (12) is connected with a mounting plate (2), springs (13) are arranged on two sides of the movable plate (12), a motor groove (14) is formed in one side of the fixed groove (11), a motor (3) is arranged in the motor groove (14), a cam (4) is installed on an output shaft of the motor (3), the cam (4) is in contact with the mounting plate (2), a fan (9) is arranged on one side above the testing platform (1), and a plurality of hanging and carrying blocks (10) are arranged on one side above the testing platform (1);
mounting panel (2) top installation wall body (6), spring (13) one end and fixed slot (11) inner wall fixed connection, movable plate (12) and fixed slot (11) sliding fit, cam (4) shape and mounting panel (2) contact department shape looks adaptation, wall body (6) inside can install a plurality ofly carry piece (10).
2. The system for testing the low-cycle repeated load and earthquake resistance of a composite wall structure according to claim 1, wherein the data acquisition module comprises an acceleration acquisition unit and a strain value acquisition unit, which are respectively used for acquiring the acceleration data and the strain value data of the tested wall body.
3. The composite wall structure low-cycle repeated load and earthquake resistance test system according to claim 2, wherein the acceleration acquisition unit comprises acceleration sensors (7), a plurality of acceleration sensors (7) are mounted on the wall body (6), the strain value acquisition unit comprises strain gauges (8), and a plurality of strain gauges (8) are mounted on the wall body (6).
4. The system for testing the low-cycle repetitive load and earthquake resistance of a composite wall structure according to claim 1, wherein the data presetting module comprises an acceleration presetting unit and a strain value presetting unit, which are respectively used for inputting acceleration presetting data and strain value presetting data of a wall body.
5. The system for testing the low-cycle repeated load and earthquake resistance of a composite wall structure according to claim 1, wherein the data comparison module comprises an acceleration comparison unit and a strain value comparison unit, which are respectively used for comparing the acceleration data and the strain value data of the tested wall body with the acceleration preset data and the strain value preset data of the wall body.
6. The composite wall structure low-cycle repeated load anti-seismic performance test system according to claim 1, wherein the data processing module, the data presetting module, the data comparison module and the data analysis module are independent modules, or are realized in a software mode through a computer (5), and the computer (5) is arranged on one side above the test bench (1).
7. The system for testing the low-cycle repeated load and earthquake-resistant performance of a composite wall structure according to claim 3, wherein the acceleration sensor (7) and the strain gauge (8) are electrically connected to a data acquisition module, the data acquisition module is electrically connected with a data processing module, the data processing module and a data presetting module are electrically connected with a data comparison module, and the data comparison module is electrically connected with a data analysis module.
8. A method for testing the low-cycle repeated load anti-seismic performance of a composite wall structure by using the system according to any one of claims 1-7, wherein the method comprises the following steps:
step 1, installation: installing a wall body (6) on an installation plate (2), installing a plurality of acceleration sensors (7) and a plurality of strain gauges (8) on a plurality of installation points preset on the wall body (6), and starting a computer (5), the acceleration sensors (7) and the strain gauges (8);
step 2, testing: the motor (3) is started, the motor (3) drives the cam (4) to rotate, the cam (4) repeatedly pushes the mounting plate (2), the mounting plate (2) drives the moving plate (12) and the wall body (6) to reciprocate in the fixing groove (11), and the plurality of acceleration sensors (7) and the plurality of strain gauges (8) transmit detection data corresponding to the plurality of detection points on the wall body (6) to the computer (5);
step 3, analysis: the computer (5) analyzes the compared data and judges whether the anti-seismic performance test of the wall body (6) meets the requirements or not;
and 4, adding wind load analysis: starting a fan (9) to blow air to the wall body (6), repeating the step 2, testing the acceleration and the strain value of the wall body (6) again when the wall body (6) is influenced by wind power, then repeating the step 3, comparing and analyzing the test result again, and judging whether the anti-seismic performance test of the wall body (6) under the influence of the wind power meets the requirement or not;
step 5, adding heavy load analysis: and (3) installing a plurality of mounting blocks (10) on the wall body (6), repeating the step (2), testing the acceleration and the strain value of the wall body (6) again when the wall body (6) is influenced by the carrier gravity, then repeating the step (3), comparing and analyzing the test result again, and judging whether the anti-seismic performance test of the wall body (6) under the influence of the carrier gravity meets the requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911038154.9A CN110749407B (en) | 2019-10-29 | 2019-10-29 | System and method for testing low-cycle repeated load anti-seismic performance of composite wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911038154.9A CN110749407B (en) | 2019-10-29 | 2019-10-29 | System and method for testing low-cycle repeated load anti-seismic performance of composite wall structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110749407A CN110749407A (en) | 2020-02-04 |
| CN110749407B true CN110749407B (en) | 2021-08-03 |
Family
ID=69280864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911038154.9A Active CN110749407B (en) | 2019-10-29 | 2019-10-29 | System and method for testing low-cycle repeated load anti-seismic performance of composite wall structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110749407B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852091Y (en) * | 2005-12-16 | 2006-12-27 | 陈景长 | Improved structure of large-scale vibration test bench |
| JP2016008892A (en) * | 2014-06-25 | 2016-01-18 | 株式会社日立製作所 | Control rod insertion seismic qualification test device |
| CN106065665B (en) * | 2016-07-25 | 2018-05-01 | 大唐环境产业集团股份有限公司 | A kind of super-span storage canopy and its method of construction |
| CN106679916A (en) * | 2016-12-23 | 2017-05-17 | 中国电力科学研究院 | Anti-seismic experimental method and test system of GIS device |
| CN107269083B (en) * | 2017-05-05 | 2020-02-14 | 江苏南京热电工程设计院有限责任公司 | Composite material and steel structure mixed super-large-span storage shed and construction method thereof |
| CN207300565U (en) * | 2017-10-10 | 2018-05-01 | 青海西矿杭萧钢构有限公司 | A kind of steel member anti-seismic performance detecting system |
| CN108005281A (en) * | 2017-11-22 | 2018-05-08 | 姚攀峰 | Active multiple fireproof heat insulating external wall structure and its construction method |
| CN108871714A (en) * | 2018-06-27 | 2018-11-23 | 芜湖衡西微量计量科技有限公司 | A kind of engineering structure antidetonation test device |
| CN208921384U (en) * | 2018-07-11 | 2019-05-31 | 尹井松 | A kind of rapid detection system of electronic product |
| CN209069762U (en) * | 2018-09-30 | 2019-07-05 | 嘉兴市恒特工程质量检测有限公司 | A kind of concrete structural strength test device |
| CN109187242A (en) * | 2018-11-07 | 2019-01-11 | 昆山海为自动化有限公司 | A kind of automatic detection system |
| CN109578224A (en) * | 2019-01-31 | 2019-04-05 | 广东电网有限责任公司 | A kind of safety monitoring system of wind-power generating unit tower |
-
2019
- 2019-10-29 CN CN201911038154.9A patent/CN110749407B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110749407A (en) | 2020-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mevel et al. | Application of a subspace-based fault detection method to industrial structures | |
| CN103575493A (en) | Device and method for appraising vibration test clamp | |
| CN107607247B (en) | Explosive explosion impulse and wind pressure combined test method | |
| US20220252669A1 (en) | Device and method for rapidly detecting energy efficiency of permanent magnet synchronous motor | |
| CN107991095A (en) | The life test apparatus and method of robot precision cycloid decelerator | |
| CN110749407B (en) | System and method for testing low-cycle repeated load anti-seismic performance of composite wall structure | |
| CN108760205B (en) | Self-excitation type impact-vibration composite test fixture and feeding device thereof | |
| CN112461548B (en) | Method for determining durable bench test time of light truck fender bracket assembly | |
| CN210803521U (en) | Speed sensor test box | |
| CN103090901A (en) | On-line calibration method for sensor | |
| CN106226177B (en) | Extra-high voltage direct current composite wall bushing internal and external anti-seismic testing device and testing method | |
| CN208998926U (en) | A kind of vibration test system and its vibration testing equipment of engine performance detection | |
| CN112557033B (en) | High-precision thrust ball bearing multi-parameter test platform capable of conveniently disassembling and assembling samples | |
| CN212110560U (en) | Stator blade natural frequency detection device under complicated path | |
| CN114964682A (en) | Vibration isolation rubber vibration isolation amount test method for front-end cooling module of passenger vehicle | |
| CN209570218U (en) | It can carry out the speed reducer standard testing bed of predictive maintenance | |
| CN109974790A (en) | It can carry out the speed reducer standard testing bed and operating method of predictive maintenance | |
| CN209910973U (en) | Data acquisition device for predicting service life of ball screw pair | |
| CN216209534U (en) | Vehicle-mounted touch product quality detection contact, unit, assembly, mechanism and device | |
| CN113252272B (en) | Periodic pulse multidirectional impact test device | |
| CN114646462B (en) | Working mode testing device and method for magnetic suspension energy storage flywheel rotor | |
| CN114777984B (en) | Bolt pretightening force combined test method | |
| CN219255627U (en) | Joint assembly detecting system | |
| CN110044609A (en) | A kind of service life experiment system of robot precision cycloid decelerator | |
| CN215952983U (en) | Impact condition testing equipment for foil air bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |