Measurement device of polymer viscoelastic model and measurement method of model element parameters

A technology for measuring devices and elastic modulus, applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve problems such as not being able to become a concrete mechanical model

Inactive Publication Date: 2012-07-18
HEILONGJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the classical polymer viscoelastic mechanical model only exists as an abstract model on paper and cannot become a con

Method used

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  • Measurement device of polymer viscoelastic model and measurement method of model element parameters
  • Measurement device of polymer viscoelastic model and measurement method of model element parameters
  • Measurement device of polymer viscoelastic model and measurement method of model element parameters

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specific Embodiment approach 1

[0036] Specific implementation mode one: combine Figure 1a Explain that the measuring device of the polymer viscoelasticity model of the present embodiment is the measuring device of the Maxwell model, the measuring device base 1 of the Maxwell model, the dynamometer 2, the spring 3, the sticky pot 4, two fixed end plates 5, Four pull rods 6 and three movable plates 7; two fixed end plates 5 are respectively the first fixed end plate 5-1 and the second fixed end plate 5-2, and the three movable plates 7 are respectively the first movable plate 7- 1. The second movable board 7-2 and the third movable board 7-3;

[0037] Two fixed end plates 5 are fixed vertically and side by side on the base 1, four tie rods 6 are fixed horizontally and in a rectangular array between the two fixed end plates 5, and the frame is composed of four tie rods 6 and two fixed end plates 5 type structure, three movable plates 7 are arranged in parallel with two fixed end plates 5 and are located betwe...

specific Embodiment approach 2

[0039] Specific implementation mode two: combination Figure 1b Description, the measuring device of the polymer viscoelasticity model of the present embodiment is the measuring device of the Kelvin model, and the measuring device of the Kelvin model comprises a base 1, a stay rope 8, a tray 9, a weight 10, and a fixed pulley 11 , strain gauge 12, spring 3, sticky pot 4, connecting rod 13, two fixed end plates 5, four pull rods 6 and three movable plates 7; the two fixed end plates 5 are respectively the first fixed end plates 5-1 And the second fixed end plate 5-2, the three movable plates 7 are respectively the first movable plate 7-1, the second movable plate 7-2 and the third movable plate 7-3;

[0040] Two fixed end plates 5 are fixed vertically and side by side on the base 1, four tie rods 6 are fixed horizontally and in a rectangular array between the two fixed end plates 5, and the frame is composed of four tie rods 6 and two fixed end plates 5 type structure, three m...

specific Embodiment approach 3

[0042] Specific implementation mode three: combination Figure 1c Explain that the measuring device of the polymer viscoelasticity model of the present embodiment is a measuring device of a three-element model, and the measuring device of the three-element model includes a base 1, a stay cord 8, a tray 9, a weight 10, a fixed pulley 11, a measuring Force gauge 2, strain gauge 12, sticky pot 4, two springs 3, two fixed end plates 5, four pull rods 6 and three movable plates 7; the two fixed end plates 5 are the first fixed end plates 5- 1 and the second fixed end plate 5-2, the three movable plates 7 are respectively the first movable plate 7-1, the second movable plate 7-2 and the third movable plate 7-3;

[0043] Two fixed end plates 5 are fixed vertically and side by side on the base 1, four tie rods 6 are fixed horizontally and in a rectangular array between the two fixed end plates 5, and the frame is composed of four tie rods 6 and two fixed end plates 5 type structure, ...

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Abstract

The invention relates to a measurement device of a polymer viscoelastic model and a measurement method of model element parameters, which relate to a measurement device of a viscoelastic model and a measurement method of model element parameters. The measurement device of the polymer viscoelastic model and the measurement method of the model element parameter are established to solve the problemsof a classic viscoelastic model that: the classic viscoelastic model is only an abstract model on paper and can not be a practical mechanical model. In the device of scheme 1: springs are connected with dashpots in series. In the device of scheme 2: springs are connected with dashpots in parallel. In the device of scheme 3: one of the two springs is connected with one of the two dashpots in series to form a Maxwell model, the other spring is connected with the other dashpot in parallel to form a Kelvin model and then the Kelvin model is connected with the Maxwell model in series. The method comprises the following steps: obtaining stress relaxation curves by the measurement device of the Maxwell model; obtaining creep curves by the measurement device of the Kelvin model; applying a constant stress sigma 0 on the measurement devices of four element mechanical models to obtain creep curves. The method can be used for establishing the practical polymer viscoelastic mechanical model.

Description

technical field [0001] The invention relates to a viscoelastic model measuring device and a method for measuring model element parameters. Background technique [0002] The classic polymer viscoelasticity model is only an abstract concept, and theoretical researchers can only use some model elements on paper, that is, use abstract springs and abstract sticky pots to form various viscoelasticity models to study its viscoelasticity. Behavior. For example: connect the abstract spring and the abstract sticky pot in series to form the Maxwell model, connect the abstract spring and the abstract sticky pot in parallel to form the Kelvin model, etc. However, there are no specific values ​​for the elastic modulus of the abstract spring and the viscosity of the abstract sticky pot. Its physical meaning is expressed in some differential equations. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the classical polymer viscoelastic ...

Claims

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Application Information

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IPC IPC(8): G01N19/00
Inventor 谢刚马浩翔王百合高明月迟旭阳
Owner HEILONGJIANG UNIV
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