CN111028627B - Teaching method of hydrodynamics - Google Patents
Teaching method of hydrodynamics Download PDFInfo
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- CN111028627B CN111028627B CN201911264932.6A CN201911264932A CN111028627B CN 111028627 B CN111028627 B CN 111028627B CN 201911264932 A CN201911264932 A CN 201911264932A CN 111028627 B CN111028627 B CN 111028627B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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Abstract
Edutainment fluid mechanics teaching equipment comprises a first hydraulic cylinder (G1), a second hydraulic cylinder (G2), an adjustable valve (F), a check valve (DXF), a first handle (L1), a second handle (L2) and liquid. A first hydraulic cylinder (G1) having a first piston; the second hydraulic cylinder is provided with a second piston; the first hydraulic cylinder (G1) is communicated with the second hydraulic cylinder through an adjustable valve (F); the first hydraulic cylinder is communicated with the second hydraulic cylinder through a one-way valve; the flow direction limiting direction of the check valve is that the liquid of the second hydraulic cylinder is allowed to flow into the first hydraulic cylinder through the check valve; the flow of the adjustable valve can be adjusted, and the adjustable valve (F) can be completely blocked; the first handle is connected with a first piston of the first hydraulic cylinder; the second handle is connected with a second piston of the second hydraulic cylinder; the liquid is poured into the first hydraulic cylinder and the second hydraulic cylinder. The invention has low cost and can improve the teaching efficiency.
Description
Technical Field
The invention belongs to the field of hydrodynamics teaching, and particularly relates to a hydrodynamics teaching method.
Background
The development of the hydrodynamics plays an important role in the development of modern industrialization, almost all heavy mechanical equipment inevitably needs to use scientific theories related to the hydrodynamics, but the hydrodynamics teaching is quite boring and uninteresting, the interactivity is weak, the joy of students is difficult to arouse, and the improvement of the hydrodynamics teaching efficiency is limited.
Disclosure of Invention
In order to overcome the problems, the invention designs a teaching method of fluid mechanics.
The specific scheme is as follows: the edutainment fluid mechanics teaching equipment comprises a first hydraulic cylinder G1, a second hydraulic cylinder G2, an adjustable valve F, a check valve DXF, a first handle L1, a second handle L2 and liquid; the first hydraulic cylinder G1 has a first piston S1; the second hydraulic cylinder G2 has a second piston S2; the first hydraulic cylinder G1 communicates with the second hydraulic cylinder G2 via an adjustable valve F; the first cylinder G1 communicates with the second cylinder G2 via a check valve DXF; the check valve DXF is restricted in a direction to allow fluid from the second cylinder G2 to flow into the first cylinder G1 via the check valve DXF and not allow fluid from the first cylinder G1 to flow into the second cylinder G2 via the check valve DXF; the flow of the adjustable valve F can be adjusted, and the adjustable valve F can be completely blocked; the first handle L1 is connected to the first piston S1 of the first hydraulic cylinder G1; the second handle L2 is connected to the second piston S2 of the second hydraulic cylinder G2; the liquid is poured into the first hydraulic cylinder G1 and the second hydraulic cylinder G2.
Preferably, the first hydraulic cylinder G1 is made of a transparent material.
Preferably, the second hydraulic cylinder G2 is made of a transparent material.
Preferably, the liquid is a coloured liquid.
Preferably, the first pull handle L1 is connected by a cord to the first piston S1 of the first hydraulic cylinder G1.
Preferably, the second pull handle L2 is connected to the second piston S2 of the second hydraulic cylinder G2 by a cord.
Preferably, check valve DXF is a check valve DXF that is not biased open.
Preferably, the check valve DXF is made of a transparent material to facilitate viewing of the interior.
The technical principle and the technical effect are as follows:
according to the principle of the invention, because the one-way valve limits the flow direction of fluid, the adjustable valve block is that the work of the second player cannot pull the first player, only the work of the first player can be resisted, so that the second player is in a passive state, the second player cannot pull back the pull ring in a power increasing mode, because the sudden change capability of the power release of the human body is very large, and the sudden power increase is used for predicting that an object which is difficult to pull is a conventional habit of the human body, the work which can effectively pull the power of the second player each time and can be suddenly released by the one-way valve can be saved.
The technical effects are as follows: the 'weak and strong' abnormal expression is made, so that the interest and thinking of a trained student or a student in a school can be aroused, the hydromechanical impression is enhanced, and the concentration degree is increased; teaching is carried out in a motion mode, so that the deadplate atmosphere of unidirectional teaching is avoided, and the atmosphere can be activated; when the device is used for hydrodynamics teaching, the participation degree of students is high, the concentration degree of the students can be increased, the attention of the students is prevented from being dispersed by irrelevant matters, and the teaching efficiency is improved.
The invention has low cost and can improve the teaching efficiency.
Drawings
Fig. 1 is a schematic structural view of embodiment 1.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Example 1
Teaching in hydrodynamics of happy teaching equipment, its characterized in that: comprises a first hydraulic cylinder G1, a second hydraulic cylinder G2, an adjustable valve F, a one-way valve DXF, a first handle L1, a second handle L2 and liquid;
the first hydraulic cylinder G1 has a first piston S1;
the second hydraulic cylinder G2 has a second piston S2;
the first hydraulic cylinder G1 communicates with the second hydraulic cylinder G2 via an adjustable valve F;
the first cylinder G1 communicates with the second cylinder G2 via a check valve DXF;
the check valve DXF is restricted in a direction to allow fluid from the second cylinder G2 to flow into the first cylinder G1 via the check valve DXF and not allow fluid from the first cylinder G1 to flow into the second cylinder G2 via the check valve DXF;
the flow of the adjustable valve F can be adjusted, and the adjustable valve F can be completely blocked;
the first handle L1 is connected to the first piston S1 of the first hydraulic cylinder G1;
the second handle L2 is connected to the second piston S2 of the second hydraulic cylinder G2;
the liquid is poured into the first hydraulic cylinder G1 and the second hydraulic cylinder G2.
Education for hydrodynamics;
the teaching process is as follows:
preparing: organizing at least one training teacher and at least 3 students for tug-of-war exercise at one time of teaching;
step 1, a training teacher selects the most slimmer student as a first player, and the first player holds a first handle L1;
step 2, arranging at least one student with a stature higher than that of the first player by the training teacher, and calling the student as a second player; player two holds second handle L2;
step 4, instructing the operator to completely block the adjustable valve F by the training teacher, and instructing the first player and the second player to start tug-of-war sports through a first pull handle L1 and a second pull handle L2; and recording the first tug-of-war result.
Step 5, instructing the operator to completely open the adjustable valve F by a training teacher, and instructing the first player and the second player to start tug-of-war sports through a first pull handle L1 and a second pull handle L2; and recording the second tug-of-war result;
step 6, arranging classroom operation, enabling students to study the influence of the tug-of-war result and the complete opening and the complete blocking of the adjustable valve F on the tug-of-war result, and analyzing the reason;
and 7, training a teacher to explain the influence and reasons of the complete opening and the complete blocking of the adjustable valve F on the tug-of-war result.
The first hydraulic cylinder G1 is made of a transparent material.
The second hydraulic cylinder G2 is made of a transparent material.
The liquid is a colored liquid.
Example 2
Edutainment of hydrodynamic teaching as in example 1; the first handle L1 is connected to the first piston S1 of the first hydraulic cylinder G1 by a rope. The second pull handle L2 is connected to the second piston S2 of the second hydraulic cylinder G2 via a cord.
Example 3
Edutainment of hydrodynamic teaching as in example 1; check valve DXF is a check valve DXF that has no opening pressure.
Example 4
Edutainment of hydrodynamic teaching as in example 1; check valve DXF is made for transparent material, conveniently observes inside.
Claims (3)
1. The teaching method of the hydrodynamics is characterized in that: fluid mechanics teaching equipment based on edutainment;
edutainment fluid mechanics teaching equipment comprises a first hydraulic cylinder (G1), a second hydraulic cylinder (G2), an adjustable valve (F), a check valve (DXF), a first handle (L1), a second handle (L2) and liquid;
the first hydraulic cylinder (G1) has a first piston (S1);
the second hydraulic cylinder (G2) has a second piston (S2);
the first hydraulic cylinder (G1) is communicated with the second hydraulic cylinder (G2) through an adjustable valve (F);
the first hydraulic cylinder (G1) is communicated with the second hydraulic cylinder (G2) through a check valve (DXF);
the check valve (DXF) is restricted in a flow direction in which the fluid of the second cylinder (G2) is allowed to flow into the first cylinder (G1) through the check valve (DXF) and the fluid of the first cylinder (G1) is not allowed to flow into the second cylinder (G2) through the check valve (DXF);
the flow of the adjustable valve (F) can be adjusted, and the adjustable valve (F) can be completely blocked;
a first handle (L1) connected to a first piston (S1) of a first hydraulic cylinder (G1);
a second handle (L2) connected to a second piston (S2) of a second hydraulic cylinder (G2);
liquid is filled in the first hydraulic cylinder (G1) and the second hydraulic cylinder (G2);
a first handle (L1) is connected to a first piston (S1) of a first hydraulic cylinder (G1) by a rope;
the second handle (L2) is connected with the second piston (S2) of the second hydraulic cylinder (G2) through a rope;
the teaching process is as follows:
preparing: organizing at least one training teacher and at least 3 students for tug-of-war exercise at one time of teaching;
step 1, a training teacher selects the thinnest student as a first player, and the first player holds a first handle (L1);
step 2, arranging at least one student with a stature higher than that of the first player by the training teacher, and calling the student as a second player; player two holds a second handle (L2);
step 3, arranging a student as an operator by the training teacher, and operating the adjustable valve (F);
step 4, instructing the operator to completely block the adjustable valve (F) by a training teacher and instructing the first player and the second player to start tug-of-war sports through a first pull handle (L1) and a second pull handle (L2); and recording the first tug-of-war result;
step 5, instructing the operator to completely open the adjustable valve (F) by a training teacher and instructing the first player and the second player to start tug-of-war sports through a first pull handle (L1) and a second pull handle (L2); and recording the second tug-of-war result;
step 6, arranging classroom operation, enabling students to study the influence of the tug-of-war result and the complete opening and the complete blocking of the adjustable valve (F) on the tug-of-war result, and analyzing the reason;
step 7, training teachers to explain the influence and reasons of complete opening and complete closing of the adjustable valve (F) on the tug-of-war results;
the first hydraulic cylinder (G1) is made of transparent material;
the second hydraulic cylinder (G2) is made of transparent material;
the liquid is a colored liquid.
2. A method of teaching fluid mechanics as claimed in claim 1 wherein: the check valve (DXF) is a check valve (DXF) without opening pressure.
3. A method of teaching fluid mechanics as claimed in claim 1 wherein: the check valve (DXF) is made of transparent material, so that the inside of the check valve is convenient to observe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911264932.6A CN111028627B (en) | 2019-12-11 | 2019-12-11 | Teaching method of hydrodynamics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911264932.6A CN111028627B (en) | 2019-12-11 | 2019-12-11 | Teaching method of hydrodynamics |
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| Publication Number | Publication Date |
|---|---|
| CN111028627A CN111028627A (en) | 2020-04-17 |
| CN111028627B true CN111028627B (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911264932.6A Active CN111028627B (en) | 2019-12-11 | 2019-12-11 | Teaching method of hydrodynamics |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005172213A (en) * | 2003-12-11 | 2005-06-30 | Koichi Kawakami | Thin type selector valve device with water connector |
| DE102010047365A1 (en) * | 2010-10-05 | 2012-04-05 | Krones Aktiengesellschaft | Device for conveying liquids |
| CN202142234U (en) * | 2011-06-20 | 2012-02-08 | 天津启星动力科技有限公司 | Hydraulic transmission model |
| CN203232613U (en) * | 2013-05-13 | 2013-10-09 | 大连民族学院 | Fluid pressure-and-pressure-intensity demonstration teaching aid |
| CN208834587U (en) * | 2018-06-15 | 2019-05-07 | 哈尔滨师范大学 | A kind of physics teaching demonstration model |
| CN209691184U (en) * | 2019-01-04 | 2019-11-26 | 深圳市锦弘技能培训学校 | A kind of demonstration teaching aid |
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