KR101640880B1 - Pre-qualification Test Plan for Shock Mount - Google Patents

Pre-qualification Test Plan for Shock Mount Download PDF

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Publication number
KR101640880B1
KR101640880B1 KR1020150150773A KR20150150773A KR101640880B1 KR 101640880 B1 KR101640880 B1 KR 101640880B1 KR 1020150150773 A KR1020150150773 A KR 1020150150773A KR 20150150773 A KR20150150773 A KR 20150150773A KR 101640880 B1 KR101640880 B1 KR 101640880B1
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KR
South Korea
Prior art keywords
damper
axis
mount
test
performance
Prior art date
Application number
KR1020150150773A
Other languages
Korean (ko)
Inventor
이종직
이용범
최병오
유한주
Original Assignee
한국기계연구원
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Priority to KR1020150150773A priority Critical patent/KR101640880B1/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • G01M99/008Subject matter not provided for in other groups of this subclass by doing functionality tests
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00Vibration-dampers; Shock-absorbers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups
    • G01B21/32Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the preceding groups for measuring the deformation in a solid
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/0028Force sensors associated with force applying means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • G01M99/007Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing

Abstract

The present invention relates to an apparatus for testing the performance of a damper for damping an electric control panel of a power plant, and more particularly, to an apparatus for testing the performance of a damper, And more particularly, to a damper performance test apparatus for vibration damping an electric control panel of a power plant having improved reliability.

Description

{Pre-qualification Test Plan for Shock Mount} [0002]
The present invention relates to an apparatus for testing the performance of a damper for damping an electrical control panel of a power plant, which is capable of performing static and dynamic load tests on various axes (X, Y, XY) And more particularly, to a damper performance test apparatus for dustproofing an electric control panel.
In critical facilities such as nuclear / thermal power plants, dustproof dampers are used to prevent electrical control panel failure due to earthquake or external impact.
The performance test of such a damper is generally divided into a static load test and a dynamic load test. The static load test and the dynamic load test are again carried out by the axial force test of the damper, A horizontal test, and a damping resistance test.
At this time, since the vertical direction test and the horizontal direction test of the damper must measure the change amount of the damper with respect to the force applied to the damper by applying a force to the damper in different axes, one damper performs a horizontal test, And are respectively mounted on devices suitable for vertical testing. That is, individual devices required for each measurement are required to measure the performance of the damper.
FIG. 1 shows a conventional damper testing apparatus having the above disadvantages. Referring to FIG. 1, a conventional damper testing apparatus includes a main body supported on a floor, a first screw rod disposed on the front side of the main body and having a screw thread formed on the outer surface thereof, a first screw rod, A first guide member for guiding the movement of the first sliding member, and a second guide member for guiding the movement of the first sliding member, which is located below the first sliding member, A first load cell provided in the main body and measuring a pressing force of the vertical damper and having a lower fixture to which the other end of the vertical damper is fixed and a first motor provided on the upper portion of the main body and rotating the first screw rod A second threaded rod disposed on the upper side of the bed and formed with threads on the outer surface thereof, a second threaded rod coupled with the second threaded rod, A second sliding member having a first holding mechanism for moving to the left and right of the bed according to the rotation and gripping one end of the horizontal damper, a second guide member for guiding movement of the second sliding member, A second load cell provided in a portion of the bonnet which is provided in a portion of the bonnet which is located in the direction of the first screw rod to measure a pressing force of the horizontal damper and hold the other end of the horizontal damper, And a horizontal damper test section including a motor.
Various methods have been tried to solve the disadvantages of the above conventional test apparatuses (dampers performance tests for each axis must be individually performed), but in order to perform a vertical test, a horizontal load is applied to a fixed damper The horizontal load is transmitted to the actuator which urges the damper in the vertical direction, and the reliability of the test result is deteriorated.
Therefore, even if the performance of the damper is tested against the force applied to the various axes in one device, the force applied to measure the performance of the damper for any planned axis is influenced by the test equipment provided for the testing of the other axes There is a need for an apparatus for testing the performance of a damper for damping an electric control panel of a power plant having reliability.
Korean Registered Patent No. 2012-0080363
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for testing a damper, And to provide a damper performance testing device for preventing the reliability of the damper performance test from being lowered.
In order to accomplish the above object, there is provided an apparatus for testing the performance of a damper for vibration damping an electric control panel of a power plant, comprising: a damper mount (110) for fixing a pair of dampers in the Y axis direction; (100) comprising a coupling member (120) connecting a pair of dampers fixed to the inner surface of the damper to each other; A first test section 200 for testing the performance of the damper fixed to the damper mount 110 in the Y-axis direction; And a second testing unit 300 for testing the performance of the damper fixed to the damper mount 110 in the X axis direction. And a control unit.
The damper mount 110 is divided into a lower mount 111 located on one side in the Y axis direction and an upper mount 112 located on the other side in the Y axis direction. The lower mount 111 and the upper mount And the first test unit 200 is coupled to the sliding bar 130 extending in the Y axis direction and the upper mount 112 is coupled to the first test unit 200 by a force applied from the first test unit 200 And moves up and down in the Y-axis direction on the sliding bar (130).
The first testing unit 200 includes an actuator mount 240 fixedly coupled to the sliding bar 130 and a first actuator fixed to the actuator mount 240 and exerting a force on the damper in the Y axis direction A first load sensor 220 for measuring a force applied to the damper by the first actuator 210, and a first displacement sensor 230 for measuring a Y-axis displacement of the damper .
The second testing unit 300 includes a second actuator 310 that applies a force to the coupling member 120 in the X axis direction and a second actuator 310 that applies a force applied by the second actuator 310 to the coupling member 120 And a second displacement sensor 330 for measuring an X-axis displacement of the coupling member 120. The second displacement sensor 330 measures the X-axis displacement of the coupling member 120. As shown in FIG.
The second test portion 300 may be hinged to the coupling member 120 to correspond to the vertical displacement of the coupling member 120.
The damper performance test apparatus for vibration damping an electric control panel of a power plant according to the present invention constructed as described above is characterized in that the performance of the damper in the X-axis direction is measured by pressing the coupling member connecting the pair of dampers in the Y- , There is an effect that the disadvantage that the force applied in the X-axis direction is dispersed in the mount for pressing the damper in the Y-axis direction is solved.
Also, the second testing unit for testing the performance of the damper in the X-axis direction is hinged to the coupling member, thereby testing the performance of the damper for a situation in which a force is applied to the X axis and the Y axis.
1 is a side view showing a conventional damper testing apparatus.
FIG. 2 is a side view of a damper performance testing apparatus for dustproofing an electric control panel of a power plant according to the present invention. FIG.
3 is a front view of an apparatus for testing the performance of a damper for damping an electric control panel of a power plant according to the present invention. (Fixed section and first test section)
4 is a plan view of a device for testing the performance of a damper for dustproofing an electric control panel of a power plant according to the present invention.
Hereinafter, an apparatus for testing the performance of a damper for damping an electric control panel of a power plant of the present invention will be described with reference to the drawings.
2, the damper performance testing apparatus of the present invention includes a damper mount 110 for fixing a pair of dampers in the Y axis direction and a pair of dampers fixed to the damper mount 110, A first test section 200 for testing the performance of the damper fixed to the damper mount 110 in the Y axis direction, And a second test section 300 for testing the performance of the damper fixed to the first stage 110 in the X-axis direction.
The damper mount 110 is divided into a lower mount 111 located on one side in the Y axis direction and an upper mount 112 located on the other side in the Y axis direction. The lower mount 111 and the upper mount 112, and the first testing unit 200 are coupled to the sliding bar 130 extending in the Y-axis direction.
In detail, the apparatus for testing the performance of a damper for vibration damping an electric control panel of a power plant of the present invention presses a damper fixed to the damper mount 110 to the Y-axis direction by the first testing unit 200, And the coupling member 120 connecting the pair of dampers to the second test unit 300 is moved in the X-axis direction To test the performance of the damper against the force applied in the X axis.
A method of pressing the damper by the first test part 200 is a method of applying a force directly to the damper and a method of pressing the damper by pressing the sliding bar 130 of the damper mount 110, The damper may be pressed by using the upper mount 112 movable on one side and the other side (up and down). However, in order to easily measure the displacement value of the damper, the first test unit 200 is mounted on the upper mount 112 It is recommended to move with force.
The first testing unit 200 includes an actuator mount 240 fixedly coupled to the sliding bar 130 and a second actuator 200 mounted on the actuator mount 240 A first actuator 210 fixed to the damper and applying a force to the damper in the Y axis direction, a first load sensor 220 measuring the force applied to the damper by the first actuator 210, and a Y- And a first displacement sensor (230).
In order to prevent displacement of the first actuator 210 when the first actuator 210 applies a force to the damper, the other side of the actuator mount 240 in the longitudinal direction is connected to the lower mount 111 The first actuator 210 is fixed to the sliding bar 130 having a plurality of rods fixed in the Y-axis direction on the other side thereof in the longitudinal direction. The first actuator 210 is connected to the first load sensor 220 The force applied to the damper by the first actuator 210 is accurately measured and the displacement of the damper is measured by pressing the upper mount 112 inside the first actuator 210 The first displacement sensor 230 measures the degree of the damper which changes with respect to the force transmitted from the first actuator 210 to measure the performance of the damper accurately.
The apparatus for testing the performance of a damper for vibration damping of an electrical control panel of a power plant according to the present invention is characterized in that the first testing unit 120 measures the performance in the X axis direction perpendicular to the Y axis direction of the damper 300 are further provided.
The second testing unit 300 includes a second actuator 310 that applies a force to the coupling unit 120 in the X axis direction and a second actuator 310 that applies a force applied by the second actuator 310 to the coupling member 120 And a second displacement sensor 330 for measuring X-axis displacement of the coupling member 120. The second displacement sensor 330 measures the X-axis displacement of the coupling member 120. As shown in FIG.
In detail, the second testing unit 300 applies force in the X-axis direction to the coupling member 120 by using the second actuator 310, and the second actuator 310 and the coupling member 120 The second load sensor 320 is positioned between the second actuator 310 and the second actuator 310 to measure a force applied to the coupling member 120 by the second actuator 310, ) Is a measure of the displacement of the damper relative to the force applied.
In the apparatus for testing the performance of a damper for vibration damping of an electric control panel of a power plant of the present invention, the horizontal direction (X axis) test and the vertical direction (Y axis) test are performed using the above- A damper Y-axis compression step of causing the damper to have a constant height in the Y-axis by applying a constant force in the Y-axis to the damper installed, and repeating the damper Y-axis compression step And a Y-axis damper performance test step for comparing the performance of the damper with a design value. In the horizontal direction test, a damper is fixed on the fixing part 100, and a damper is fixed to the damper by applying a constant force to the damper in the Y- A damper Y-axis compression step for making the Y-axis damper have a constant height in the Y-axis, a damper X-axis compression step for applying a force in the X-axis until the damper compressed in the Y- And a performance test step of the X-axis damper for comparing the performance of the damper with the design value.
Also, in the static load test, it is carried out in the same manner as the above-mentioned static load test, but in the case of the vertical direction test step, a Y-axis dynamic load compression step for applying a predetermined constant dynamic load between the damper Y-axis compression stage and the Y- And in the case of the horizontal test step, the damper X-axis compression stage is transformed into the X-axis dynamic load compression stage which applies the planned dynamic load to the X-axis.
In addition, the damper performance test apparatus for dust-damping the electrical control panel of the power plant is configured such that the force in the X axis direction applied by the second actuator 310 is transmitted to the first test unit 200, Each of the dampers is connected to each other via the coupling member 120. The second testing unit 300 applies an X-directional load to the damper through the coupling member 120 And the damper mount 110 for fixing the respective dampers is coupled to the sliding bar 130.
2, when the dampers are not connected to each other through the coupling member 120, when the force is applied to the damper in the X axis direction by the second testing unit 300, Is transmitted to the damper mount 110 for fixing the damper and the first test unit 200.
Therefore, even if a predetermined force is applied to the damper by the second actuator 310 and a planned force is measured by the second load sensor 320 (loadcell), a force that is substantially applied to the damper is transmitted to the damper mount 110 1 test unit 200 and reliability of the damper performance measurement test is reduced.
More specifically, when a force is directly applied to the damper in the X axis direction by the second actuator 310, the damper mount 110 is pushed in the X axis direction, so that the displacement value of the damper is not accurately measured, A force may be transmitted to the first test unit 200 to cause a breakage accident.
Therefore, even though the sliding bar 130 penetrates the lower mount 111 and the upper mount 112 and forces the first test unit 200 in the X-axis direction, the damper mount 110 The second test portion 300 is prevented from being damaged and a force is applied to the coupling member 120 in the X axis direction in a state where the pair of dampers are connected by the coupling member 120, The transmission of the force to the damper mount 110 and the second testing unit 300 is restricted, thereby improving the reliability of the damper performance test.
In addition, the sliding bar 130 serves as a guide for moving the upper mount 112 in the Y-axis direction. Referring to FIGS. 2 to 4, the damper performance testing apparatus of the present invention is fixed to the damper mount 110 with a damper having various shapes and sizes. Accordingly, the upper mount 112 is slidably coupled to the sliding bar 130 to move in the Y-axis direction corresponding to the shape and size of the damper, thereby controlling the separation distance between the lower mount 111 and the upper mount 112. In this case, when the first test part 200 applies a force to the damper in the Y-axis direction, the upper mount 112 may move to transmit the force to the damper.
In addition, the damper performance testing apparatus according to the present invention has a structure in which the second testing unit 300 is hinged to the coupling member 120 to correspond to the vertical displacement of the coupling member 120.
In detail, when the performance test of the damper in the X-axis direction and the performance test in the Y-axis direction are individually performed, it is sufficient if the second test portion 300 is horizontally coupled with the coupling member 120. However, The system is designed to test the performance of the damper on the X and Y axes which are simultaneously exerted on the X and Y axes as required.
Therefore, the second testing unit 300 and the coupling unit 120 are hinged to each other. 1, the second test portion 300 and the coupling portion 120 are hinged to each other using a clevis. However, a method using a multi-axis joint or the like may also be used. In addition, (Y) axis displacement of the coupling member 120 due to the force is sufficient, it is not limited.
As a result, the damper performance test apparatus for vibration damping the electric control panel of the power plant of the present invention is configured to be able to test the performance in the Y-axis direction, the X-axis direction and the XY-direction of the damper in one apparatus, It is possible to improve the reliability of the test data by solving the disadvantages that occur when different tests are performed.
The technical idea should not be interpreted as being limited to the above-described embodiment of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, such modifications and changes are within the scope of protection of the present invention as long as it is obvious to those skilled in the art.
100: Fixing portion 110: Damper mount
111: Lower mount 112: Upper mount
120: coupling member 130: sliding bar
200: first test section 210: first actuator
220: first load sensor 230: first displacement sensor
240: Actuator mount
300: second test section 310: second actuator
320: second load sensor 330: second displacement sensor

Claims (6)

  1. A damper mount (110) for fixing a pair of dampers in the Y axis direction and a coupling member (120) connecting the inner surfaces of the pair of dampers fixed to the damper mount (110) (100);
    A first test section 200 for testing the performance of the damper fixed to the damper mount 110 in the Y-axis direction; And
    A second testing unit 300 for testing the performance of the damper fixed to the damper mount 110 in the X axis direction; / RTI >
    The damper mount 110 is divided into a lower mount 111 located on one side in the Y axis direction and an upper mount 112 located on the other side in the Y axis direction,
    The lower mount 111, the upper mount 112, and the first test unit 200 are passed through a sliding bar 130 extending in the Y-axis direction. Performance test equipment of damper.
  2. delete
  3. The method according to claim 1,
    Wherein the upper mount (112) is slidingly coupled to the sliding bar (130).
  4. The method according to claim 1 or 3,
    The first testing unit 200 includes an actuator mount 240 fixed to the sliding bar 130, a first actuator 210 fixed to the actuator mount 240 and applying a force to the damper in the Y axis direction, , A first load sensor (220) for measuring a force of the first actuator (210), and a first displacement sensor (230) for measuring a Y-axis displacement of the damper A device for testing the performance of a damper.
  5. The method according to claim 1 or 3,
    The second testing unit 300 includes a second actuator 310 for applying a force in the X-axis direction to the coupling member 120, a second load sensor 320 for measuring a force of the second actuator 310, And a second displacement sensor (330) for measuring an X-axis displacement of the coupling member (120).
  6. The method according to claim 1,
    Wherein the second testing unit (300) is hinged to the coupling member (120).
KR1020150150773A 2015-10-29 2015-10-29 Pre-qualification Test Plan for Shock Mount KR101640880B1 (en)

Priority Applications (1)

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KR1020150150773A KR101640880B1 (en) 2015-10-29 2015-10-29 Pre-qualification Test Plan for Shock Mount

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Application Number Priority Date Filing Date Title
KR1020150150773A KR101640880B1 (en) 2015-10-29 2015-10-29 Pre-qualification Test Plan for Shock Mount

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KR101640880B1 true KR101640880B1 (en) 2016-07-19

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010175532A (en) * 2008-12-29 2010-08-12 Kokusai Keisokki Kk Vibration test apparatus
KR20120080363A (en) 2011-01-07 2012-07-17 이정환 A testing apparatus of damper

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010175532A (en) * 2008-12-29 2010-08-12 Kokusai Keisokki Kk Vibration test apparatus
KR20120080363A (en) 2011-01-07 2012-07-17 이정환 A testing apparatus of damper

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