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Hydrostatic pressure distribution teaching demonstration instrument

A technology of static pressure and demonstration instrument, applied in teaching models, instruments, educational appliances, etc., can solve the problems of poor static teaching effect and difficult understanding of students in static state, and achieve convenient installation and maintenance, and intuitive reading of data. , the effect of simple operation

Inactive Publication Date: 2019-05-14
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The relative static state is different from the absolute static state, and it is not common in real life. It is often represented by abstract schematic diagrams in textbooks and teaching, so it is difficult for students to understand, and the teaching effect of relative static state statics is not good.

Method used

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  • Hydrostatic pressure distribution teaching demonstration instrument
  • Hydrostatic pressure distribution teaching demonstration instrument
  • Hydrostatic pressure distribution teaching demonstration instrument

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0050] as attached figure 1 As shown, the hydrostatic pressure distribution teaching demonstration instrument disclosed in this embodiment is mainly composed of an experimental cylinder 1, a digital display speed regulating motor 3, a laser measuring device 8 and other accessories. The other accessories described include an operating platform 2, a flat key 4, a fixing device 5 and a deep groove ball bearing 6. The digital display speed regulating motor 3 is mainly composed of a motor 3.1 and a digital display speed governor 3.2, both of which are fixed on the operating platform 2. The end of the output shaft of the digital display speed regulating motor 3 is provided with a keyway matched with the flat key 4 . The experimental cylinder 1 is used to contain the liquid 7. The top of the cylinder adopts a semi-closed structure. The bottom of the experimental cylinder 1 is provided with a plug 1.2 for adjusting the height of the liquid. Shaft bore and keyway. The laser measurin...

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Abstract

The invention discloses a hydrostatic pressure distribution teaching demonstration instrument and belongs to the technical field of teaching of hydrostatics. A laser measuring device is used for observing liquid level difference of a free fluid surface of liquid in an experiment cylinder between a rotation center and the inner side wall of the cylinder; an Euler equilibrium differential equation is used for calculating to obtain a theoretical rotation speed of a rotating container; the theoretical rotation speed of the rotating container is compared with an actual rotation speed displayed by aspeed regulator screen of a digital display speed regulating motor so as to verify the Euler equilibrium differential equation; the rotation speed of the speed regulating motor is preset by adjustingthe digital display speed regulating motor; the Euler equilibrium differential equation is used for solving theoretical liquid level difference of the free liquid surface of the liquid in the experiment cylinder between the rotation center and the inner side wall of the cylinder; actual liquid level difference obtained by measuring is compared to verify the Euler equilibrium differential equation. The hydrostatic pressure distribution teaching demonstration instrument is capable of carrying out synchronous teaching of verification and experimental application of the Euler equilibrium differential equation and enabling students to have deeper understanding of learning content of equilibrium state of the liquid in the constant-angular-speed rotating container.

Description

technical field [0001] The invention relates to a teaching demonstration instrument for hydrostatic pressure distribution, which belongs to the technical field of hydrostatics teaching. Background technique [0002] Fluid statics is the study of the distribution of pressure in a fluid at rest. "Static" here means that the fluid particles have no relative motion. There are two kinds of this situation: one is that there is no motion relative to the ground, which is called absolute rest; the other is that the fluid has motion relative to the ground, but there is no relative motion between the fluid particles. Fluid statics has important applications in many engineering fields, and it is also an important content that students must understand and master in the course of "Fluid Mechanics". The relative static state is different from the absolute static state. It is not common in real life. It is often represented by abstract schematic diagrams in textbooks and teaching. Therefo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/12
Inventor 张敏弟黄国豪郑辰常青黄彪
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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