SU1467384A1 - Method of measuring strains inside parts - Google Patents
Method of measuring strains inside parts Download PDFInfo
- Publication number
- SU1467384A1 SU1467384A1 SU874242356A SU4242356A SU1467384A1 SU 1467384 A1 SU1467384 A1 SU 1467384A1 SU 874242356 A SU874242356 A SU 874242356A SU 4242356 A SU4242356 A SU 4242356A SU 1467384 A1 SU1467384 A1 SU 1467384A1
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- SU
- USSR - Soviet Union
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- deformations
- base points
- determining
- cubic element
- inside parts
- Prior art date
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Изобретение относитс к измерительной технике, в частности к способам определени деформаций внутри деталей конструкций. Цель изобретени - снижение трудоемкости, достигаетс за счет того, что базовые точки , в которых измер ют перемещени , располагают внутри детали следующим образом: одну - в центре выбранного кубического элемента объема детали, а три других - в несмежных вершинах этого кубического элемента. Такое расположение базовых точек дает возможность упростить выражени , используемые при определении деформаций. 1 ил.The invention relates to a measurement technique, in particular, to methods for determining deformations inside structural parts. The purpose of the invention is to reduce the labor intensity, due to the fact that the base points at which displacements are measured are positioned inside the part as follows: one in the center of the selected cubic element of the part volume and three others in non-adjacent vertices of this cubic element. This arrangement of base points makes it possible to simplify the expressions used in determining the deformations. 1 il.
Description
1one
Изобретение относитс к измерительной технике, в частности к способам определени деформаций внутри деталей конструкций.The invention relates to a measurement technique, in particular, to methods for determining deformations inside structural parts.
Цель изобретени - снижение трудоемкости определени деформаций.The purpose of the invention is to reduce the laboriousness of the determination of deformations.
Цель достигаетс за счет предложенного расположени внутри детали базовых точек дл измерени перемещений .The goal is achieved by the proposed location of base points inside the part for measuring displacements.
На чертеже показано расположение базовых точек до и после деформировани детали.The drawing shows the location of the base points before and after deforming the part.
Способ определени деформации осу«(ествл етс следующим образом.The method for determining the deformation of the wasp "is described as follows.
В исследуемом объеме детали выбирают размер стороны (А).и расположение (Н) кубического элемента, в котором будут определ тьс деформации. Затем в детали высверливают четыреIn the studied volume of the part, choose the size of the side (A). And the location (H) of the cubic element in which the deformations will be determined. Then four are drilled into the parts.
параллельных отверсти 1-4 так, чтобы их концы были расположены следующим образом: концы отверстий 1-3 - в несмежных вершинах N,, N и N3 кубического элемента объема, а конец отверсти 4 - в центре N этого элемента . Концы отверстий образуют че- тьфе базовые точки дл измерений.parallel holes 1-4 so that their ends are located as follows: the ends of holes 1-3 are in non-adjacent vertices N ,, N and N3 of a cubic volume element, and the end of hole 4 is in the center N of this element. The ends of the holes form a set of base points for measurements.
Затем деформируют деталь и измер ют перемещени базовьгх точек по трем координатным направлением х, у, Z, например, с помощью тензометра (не показан), измерительные ножки которого установлены в базовых точках . По результатам измерени определ ют деформации, использу следующие выражени :The part is then deformed and the movements of the base points are measured along the three coordinate directions x, y, Z, for example, using a strain gauge (not shown), the measuring legs of which are installed at the base points. Based on the measurement results, deformations are determined using the following expressions:
Р ЬХг+Лх, с У(Ь. с . ; Л-Ч- А д P hhg + Lh, c V (b. S.; L-H-A d
NUNU
О5O5
0000
00 4::00 4 ::
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874242356A SU1467384A1 (en) | 1987-05-12 | 1987-05-12 | Method of measuring strains inside parts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874242356A SU1467384A1 (en) | 1987-05-12 | 1987-05-12 | Method of measuring strains inside parts |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1467384A1 true SU1467384A1 (en) | 1989-03-23 |
Family
ID=21303233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU874242356A SU1467384A1 (en) | 1987-05-12 | 1987-05-12 | Method of measuring strains inside parts |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1467384A1 (en) |
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1987
- 1987-05-12 SU SU874242356A patent/SU1467384A1/en active
Non-Patent Citations (1)
Title |
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Авторское свидетельство СССР К 1283520, кл. G 01 В 7/18, 1982. * |
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