CN203705275U - Photoelastic coating material fringe value calibrating device - Google Patents
Photoelastic coating material fringe value calibrating device Download PDFInfo
- Publication number
- CN203705275U CN203705275U CN201320892078.XU CN201320892078U CN203705275U CN 203705275 U CN203705275 U CN 203705275U CN 201320892078 U CN201320892078 U CN 201320892078U CN 203705275 U CN203705275 U CN 203705275U
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- cross
- section
- overarm
- iso
- adjusting bolt
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Abstract
The utility model discloses a photoelastic coating material fringe value calibrating device which comprises a bracket, a photoelastic coating, an equivalent-cross-section suspension girder, a level gauge, an adjusting bolt, a dividing ruler, a resistance strain gauge and a weight, wherein a strip-shaped through hole which runs through a girder body at the root end and extends in a length direction of the equivalent-cross-section suspension girder is formed in the root end of the equivalent-cross-section suspension girder; the end of a screw rod of the adjusting bolt runs through the strip-shaped through hole and stretches downwards into a mounting blind hole in a bracket body; the root end of the equivalent-cross-section suspension girder is fixedly arranged on the bracket through the adjusting bolt; the photoelastic coating is fixedly arranged on the side face of the equivalent-cross-section suspension girder; the resistance strain gauge is fixedly arranged on the bottom side face of the equivalent-cross-section suspension girder; the level gauge is additionally arranged on the bottom side face of the equivalent-cross-section suspension girder; the dividing ruler is fixedly arranged on the side face of one side of the equivalent-cross-section suspension girder. The calibrating device disclosed by the utility model is convenient and rapid to use and is high in calibrating precision.
Description
Technical field
The utility model belongs to the improvement of Photoelastic coating material assignment test device structure, particularly Photoelastic coating material fringe value caliberating device.
Background technology
Elastooptic mateiral fringe value is to apply a material constant need to determining when elastooptic mateiral carries out stress or strain measurement, and its physical significance is that unit thickness photochromics produces the corresponding principle stress of one-level isodiff (principal strain) difference.Conventional material striped values determination method is to disk test specimen radial loaded pressure, reads the fringe order of disc centre, calculates material fringe value by photostress formula, and this scaling method is mainly used in the demarcation of photoelasticity transmission model material.
Along with the development of Photoelastic coating technology, traditional transmission model photoelastic method measuring principle, expands to available light elastic patch measurement for opaque body structure surface strain field.Due to Photoelastic coating thinner (common 1～3mm), adopt radially the demarcation mode of pressurized disk easily to cause test specimen bending and affect stated accuracy, and the disk test specimen that some novel jet printing type Photoelastic coating is difficult to the standard of making is demarcated.
Utility model content
The purpose of this utility model is to provide a kind of Photoelastic coating material fringe value caliberating device, be easy to use quick, stated accuracy is high.
The purpose of this utility model is achieved in that a kind of Photoelastic coating material fringe value caliberating device, comprises support (8), Photoelastic coating (1), iso-cross-section overarm (2), level meter (3), adjusting bolt (4), rule (5), strain ga(u)ge (6) and counterweight counterweight (7), iso-cross-section overarm (2) butt is arranging the bar shaped perforation that penetrates its butt beam body and extend along iso-cross-section overarm (2) length direction, the screw end head that adjusting bolt (4) has self is through this bar shaped perforation and stretch into the installing blind arranging on support (8) body downwards, in installing blind, be provided with internal thread, the external thread power of being threaded matched with internal thread and that produce that the nut that adjusting bolt (4) has is had by its screw rod is ordered about and presses while touching iso-cross-section overarm (2) butt and iso-cross-section overarm (2) butt is pressed and touch support (8), so that iso-cross-section overarm (2) butt is conditioned bolt (4) and is packed on support (8), iso-cross-section overarm (2) top is always in vacant state, the nut having when adjusting bolt (4) is not subject to this external thread and be threaded masterpiece used time of producing matched with internal thread, the screw rod of adjusting bolt (4) can be slidingly fitted along iso-cross-section overarm (2) length direction relative to each other with the mode through bar shaped perforation and bar shaped perforation, causes the length respective change of unsettled section of its gravitate down to iso-cross-section overarm (2) corresponding moving back and forth at least along its length, Photoelastic coating (1) is to be packed in iso-cross-section overarm (2) top side face with the mode of the mutual face laminating of iso-cross-section overarm (2) top side face, on iso-cross-section overarm (2) bottom side, pacify set for to iso-cross-section overarm (2) surface at counterweight counterweight (7) Action of Gravity Field that suspend by its top to have and the deformation quantity of corresponding generation carries out the strain ga(u)ge (6) of sensing demonstration, on iso-cross-section overarm (2) bottom side, the level meter (3) for measuring and show iso-cross-section overarm (2) levelness is also installed, be fixedly mounted with the rule (5) that is used to indicate the position coordinates numerical value of Photoelastic coating (1) on iso-cross-section overarm (2) length direction and reads Photoelastic coating (1) fringe value in a flank side surface of iso-cross-section overarm (2).
The utility model relates to Photoelastic coating calibration technique, and the material fringe value that is mainly used in epoxy resin, polycarbonate photoelasticity thin slice or jet printing type Photoelastic coating is demarcated.
The mode that the utility model adopts uniform beam to load, material fringe value that can nominal light elastic patch in the situation that not needing production standard photoelasticity disk, has the feature convenient and swift, stated accuracy is high.
Working specification of the present utility model: the utility model is made up of Photoelastic coating, uniform beam, horizontal fluid column, adjusting bolt, rule, strain ga(u)ge, counterweight counterweight, support, the steel disc that wherein uniform beam is even thickness, can adjust effective length by adjusting bolt; According to water level meter, the uniform beam loading before counterweight counterweight is adjusted to horizontal level; Rule is used to refer to leaded light elastic patch paste position and accurate reading fringe spacing; Counterweight is used to provide accurate loaded load; The strain measurement result of strain ga(u)ge be used for proof load value and with Photoelastic coating measure fringe value contrast; The Photoelastic coating of being demarcated is pasted on uniform beam, hang counterweight at the end of uniform beam and carry out imposed load, with the fringe order of two known location on reflective photoelastic instrument observation known thickness Photoelastic coating, learn formula by photostress, acquisition obtains the material fringe value of Photoelastic coating, and carry out contrast verification with the strain differential that strain gage testing obtains, can revise the thickness of uniform beam and Photoelastic coating to the impact of calibration result.
The utility model beneficial effect: the device that the utility model provides a kind of material fringe value that is applicable to Photoelastic coating to demarcate, the mode of employing uniform beam imposed load, the material fringe value of nominal light elastic patch quickly and easily.
This patent core technology point: 1, Photoelastic coating is affixed on uniform beam, the mode of counterweight imposed load is carried out nominal light elastic patch; 2, the indication of application level instrument is adjusted uniform beam to horizontal level, adopts rule accurately to read the fringe spacing of Photoelastic coating.The less important technology point of this patent: 1, the strain differential of strainometer and Photoelastic coating synchro measure uniform beam known location, and mutual contrast verification.
The utility model is easy to use fast, stated accuracy is high.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is general structure schematic diagram of the present utility model.
Embodiment
A kind of Photoelastic coating material fringe value caliberating device, as shown in Figure 1, comprise support (8), Photoelastic coating (1), iso-cross-section overarm (2), level meter (3), adjusting bolt (4), rule (5), strain ga(u)ge (6) and counterweight counterweight (7), iso-cross-section overarm (2) butt is arranging the bar shaped perforation that penetrates its butt beam body and extend along iso-cross-section overarm (2) length direction, the screw end head that adjusting bolt (4) has self is through this bar shaped perforation and stretch into the installing blind arranging on support (8) body downwards, in installing blind, be provided with internal thread, the external thread power of being threaded matched with internal thread and that produce that the nut that adjusting bolt (4) has is had by its screw rod is ordered about and presses while touching iso-cross-section overarm (2) butt and iso-cross-section overarm (2) butt is pressed and touch support (8), so that iso-cross-section overarm (2) butt is conditioned bolt (4) and is packed on support (8), iso-cross-section overarm (2) top is always in vacant state, the nut having when adjusting bolt (4) is not subject to this external thread and be threaded masterpiece used time of producing matched with internal thread, the screw rod of adjusting bolt (4) can be slidingly fitted along iso-cross-section overarm (2) length direction relative to each other with the mode through bar shaped perforation and bar shaped perforation, causes the length respective change of unsettled section of its gravitate down to iso-cross-section overarm (2) corresponding moving back and forth at least along its length, Photoelastic coating (1) is to be packed in iso-cross-section overarm (2) top side face with the mode of the mutual face laminating of iso-cross-section overarm (2) top side face, on iso-cross-section overarm (2) bottom side, pacify set for to iso-cross-section overarm (2) surface at counterweight counterweight (7) Action of Gravity Field that suspend by its top to have and the deformation quantity of corresponding generation carries out the strain ga(u)ge (6) of sensing demonstration, on iso-cross-section overarm (2) bottom side, the level meter (3) for measuring and show iso-cross-section overarm (2) levelness is also installed, be fixedly mounted with the rule (5) that is used to indicate the position coordinates numerical value of Photoelastic coating (1) on iso-cross-section overarm (2) length direction and reads Photoelastic coating (1) fringe value in a flank side surface of iso-cross-section overarm (2).
Claims (1)
1. a Photoelastic coating material fringe value caliberating device, is characterized in that: comprise support (8), Photoelastic coating (1), iso-cross-section overarm (2), level meter (3), adjusting bolt (4), rule (5), strain ga(u)ge (6) and counterweight counterweight (7), iso-cross-section overarm (2) butt is arranging the bar shaped perforation that penetrates its butt beam body and extend along iso-cross-section overarm (2) length direction, the screw end head that adjusting bolt (4) has self is through this bar shaped perforation and stretch into the installing blind arranging on support (8) body downwards, in installing blind, be provided with internal thread, the external thread power of being threaded matched with internal thread and that produce that the nut that adjusting bolt (4) has is had by its screw rod is ordered about and presses while touching iso-cross-section overarm (2) butt and iso-cross-section overarm (2) butt is pressed and touch support (8), so that iso-cross-section overarm (2) butt is conditioned bolt (4) and is packed on support (8), iso-cross-section overarm (2) top is always in vacant state, the nut having when adjusting bolt (4) is not subject to this external thread and be threaded masterpiece used time of producing matched with internal thread, the screw rod of adjusting bolt (4) can be slidingly fitted along iso-cross-section overarm (2) length direction relative to each other with the mode through bar shaped perforation and bar shaped perforation, causes the length respective change of unsettled section of its gravitate down to iso-cross-section overarm (2) corresponding moving back and forth at least along its length, Photoelastic coating (1) is to be packed in iso-cross-section overarm (2) top side face with the mode of the mutual face laminating of iso-cross-section overarm (2) top side face, on iso-cross-section overarm (2) bottom side, pacify set for to iso-cross-section overarm (2) surface at counterweight counterweight (7) Action of Gravity Field that suspend by its top to have and the deformation quantity of corresponding generation carries out the strain ga(u)ge (6) of sensing demonstration, on iso-cross-section overarm (2) bottom side, the level meter (3) for measuring and show iso-cross-section overarm (2) levelness is also installed, be fixedly mounted with the rule (5) that is used to indicate the position coordinates numerical value of Photoelastic coating (1) on iso-cross-section overarm (2) length direction and reads Photoelastic coating (1) fringe value in a flank side surface of iso-cross-section overarm (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892078.XU CN203705275U (en) | 2013-12-31 | 2013-12-31 | Photoelastic coating material fringe value calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892078.XU CN203705275U (en) | 2013-12-31 | 2013-12-31 | Photoelastic coating material fringe value calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705275U true CN203705275U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320892078.XU Expired - Fee Related CN203705275U (en) | 2013-12-31 | 2013-12-31 | Photoelastic coating material fringe value calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203705275U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801517A (en) * | 2018-06-06 | 2018-11-13 | 湘潭大学 | A kind of efficiently accurate caliberating device of Photoelastic coating material fringe values |
| CN109883835A (en) * | 2019-03-20 | 2019-06-14 | 中国航发湖南动力机械研究所 | Photoelastic model mounting device and rotating centrifugal load charger |
| CN109990818A (en) * | 2018-11-30 | 2019-07-09 | 东莞理工学院 | A kind of fiber-optic grating sensor marking apparatus |
| CN110264836A (en) * | 2019-06-20 | 2019-09-20 | 西京学院 | A kind of mechanics of materials distortional stress apparatus for demonstrating |
-
2013
- 2013-12-31 CN CN201320892078.XU patent/CN203705275U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801517A (en) * | 2018-06-06 | 2018-11-13 | 湘潭大学 | A kind of efficiently accurate caliberating device of Photoelastic coating material fringe values |
| CN109990818A (en) * | 2018-11-30 | 2019-07-09 | 东莞理工学院 | A kind of fiber-optic grating sensor marking apparatus |
| CN109990818B (en) * | 2018-11-30 | 2021-02-02 | 东莞理工学院 | Fiber grating sensor calibration instrument |
| CN109883835A (en) * | 2019-03-20 | 2019-06-14 | 中国航发湖南动力机械研究所 | Photoelastic model mounting device and rotating centrifugal load charger |
| CN110264836A (en) * | 2019-06-20 | 2019-09-20 | 西京学院 | A kind of mechanics of materials distortional stress apparatus for demonstrating |
| CN110264836B (en) * | 2019-06-20 | 2021-06-25 | 西京学院 | Material mechanics deformation stress presentation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |