SU1647353A1 - Method for determining dynamic characteristics of complex yarn under creep - Google Patents
Method for determining dynamic characteristics of complex yarn under creep Download PDFInfo
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- SU1647353A1 SU1647353A1 SU894673511A SU4673511A SU1647353A1 SU 1647353 A1 SU1647353 A1 SU 1647353A1 SU 894673511 A SU894673511 A SU 894673511A SU 4673511 A SU4673511 A SU 4673511A SU 1647353 A1 SU1647353 A1 SU 1647353A1
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- dynamic characteristics
- oscillations
- load
- sample
- thread
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Изобретение относитс к исследованию механических свойств волокон и нитей. Целью изобретени вл етс повышение достоверности. В способе вертикально подвешенный образец исследуемой нити нагружают грузом, после достижени заданной степени ползучести возбуждают продольные колебани образца и регистрируют частоту и амплитуду колебаний, по которым определ ют динамические характеристики исследуемой нити, удар нанос т снизу вверх по грузу. Возбуждение колебаний исследуемой нити ударом, наносимым снизу вверх по грузу, обеспечивает малую в пределах упругих деформации образца амплитуду возбуждаемых колебаний, что повышает достоверность определени динамических характеристик комплексной нити. 1 ил.The invention relates to the study of the mechanical properties of fibers and filaments. The aim of the invention is to increase reliability. In the method, a vertically suspended sample of the test thread is loaded with a load, after reaching a predetermined creep level, longitudinal oscillations of the sample are excited and the frequency and amplitude of oscillations, which determine the dynamic characteristics of the test thread, are recorded, the blow is applied upwards along the load. The excitation of oscillations of the thread under study by a shock applied from below upwards over the load ensures a small amplitude of the excited oscillations within the elastic deformation of the sample, which increases the reliability of determining the dynamic characteristics of the complex thread. 1 il.
Description
Изобретение относитс к исследованию механических свойств волокон и нитей .The invention relates to the study of the mechanical properties of fibers and filaments.
Целью изобретени вл етс повышение достоверности определени динамических характеристик.The aim of the invention is to increase the reliability of the determination of dynamic characteristics.
На чертеже схематично показана установка , на которой реализуетс предлагаемый способ.The drawing shows schematically the installation where the proposed method is implemented.
Способ осуществл ют следующим образом .The method is carried out as follows.
Вертикально подвешенный образец 1 исследуемой нити статически нагружают грузом 2, обеспечивающим возникновение в нити процесса ползучести. После выдержки образца под нагрузкой дл достижени заданной деформации ползучести возбуждают продольные колебани образца 1 ударом бойка 3 пружинного ударника 4 по грузу 2 снизу вверх. Силу ударного нагружени выбирают из услови возбуждени колебаний с амплитудой, не большей величины упругих деформаций нагруженного образца 1. Регистрируют с помощью вибродатчика 5 амплитуду и частоту возбужденных колебаний , по которым определ ют динамические характеристики комплексной нити в процессе ползучести.The vertically suspended sample 1 of the test thread is statically loaded with a load 2, which ensures the creep process to appear in the thread. After the sample is held under load, in order to achieve a given creep deformation, longitudinal oscillations of sample 1 are excited by striking the striker 3 of the spring drummer 4 through the load 2 from bottom to top. The shock loading force is chosen from the conditions of oscillation excitation with an amplitude not exceeding the magnitude of the elastic deformations of the loaded specimen 1. The amplitude and frequency of the excited oscillations are recorded with the help of the vibration sensor 5, which determine the dynamic characteristics of the complex yarn in the creep process.
Возбуждение колебаний исследуемой нити ударом, наносимым снизу вверх по грузу, обеспечивает малую в пределах упругих де формаций образца амплитуду возбуждаемых колебаний, что повышает достоверность определени динамических характеристик комплексной нити.The excitation of the vibrations of the thread under study by a shock applied from below upwards over the load provides a small amplitude of the excited oscillations within the elastic deformations of the sample, which increases the reliability of determining the dynamic characteristics of the complex thread.
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Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894673511A SU1647353A1 (en) | 1989-04-05 | 1989-04-05 | Method for determining dynamic characteristics of complex yarn under creep |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894673511A SU1647353A1 (en) | 1989-04-05 | 1989-04-05 | Method for determining dynamic characteristics of complex yarn under creep |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1647353A1 true SU1647353A1 (en) | 1991-05-07 |
Family
ID=21439310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU894673511A SU1647353A1 (en) | 1989-04-05 | 1989-04-05 | Method for determining dynamic characteristics of complex yarn under creep |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1647353A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5269181A (en) * | 1992-05-20 | 1993-12-14 | Gibson Ronald F | Apparatus and process for measuring mechanical properties of fibers |
-
1989
- 1989-04-05 SU SU894673511A patent/SU1647353A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 1067405, кл. G 01 N 3/32, 1984. Авторское свидетельство СССР № 1303885, кл. G 01 N 3/30, 1987. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5269181A (en) * | 1992-05-20 | 1993-12-14 | Gibson Ronald F | Apparatus and process for measuring mechanical properties of fibers |
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