Structural body rotatable entry testing device

A structure and water test technology, which is applied in fluid dynamics test, machine/structural component test, measuring device, etc., can solve the problems of high cost, inability to realize the process of structure rotation into water, and inability to support system analysis, etc.

Active Publication Date: 2018-10-02
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the current research methods for the water entry process, the water tunnel experiment can only basically meet the needs of the cavitation phenomenon and the underwater motion engineering of the vehicle body, and cannot realize the research on the water entry process of the vehicle body; the water launch experiment is a feasible research method. The general water launch experiment can only realize the water entry

Method used

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  • Structural body rotatable entry testing device
  • Structural body rotatable entry testing device
  • Structural body rotatable entry testing device

Examples

Experimental program
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Effect test

Embodiment 1

[0028] See attached figure 1 , a rotatable water entry test device for a structure, comprising: a support 1, a water storage tank 2 with an upper opening, a rotating launch assembly 3 and a position adjustment assembly 4;

[0029] See attached figure 2 , the side and bottom surface of the water storage tank 2 are made of plexiglass; the outer contour and bottom of the water storage tank 2 are fixed with a profile bracket 21 to strengthen the structural stability of the water storage tank 2; the bottom of the water storage tank 2 is provided with a drain valve 22 for easy replacement water quality;

[0030] See attached image 3 , the support member 1 is covered on the water storage tank 2, and is used for loading the position adjustment assembly 4 and the rotating launching assembly 3;

[0031] See attached Figure 5 , the position adjustment assembly 4 includes: a primary adjustment track 41 that is slidably installed on the support member 1 for realizing forward and bac...

Embodiment 2

[0036] See attached Figure 7 , in this embodiment, the mechanical claw assembly 6 is replaced by a V-shaped block part, and the structure is clamped by the V-shaped block part installed between the two clamping steel plates 323; in order to enable the structure to rotate into the water, the A friction wheel 33 is arranged on both sides of the water entry route of the structure below the rotating part 31. The axes of the two friction wheels 33 are parallel, and the distance between the two friction wheels 33 is consistent with the diameter of the structure. The two friction wheels 33 are driven by their respective motors , when the structure passes through the two friction wheels 33, the two rotating friction wheels 33 drive the structure to rotate, so that the structure has a certain speed of entering the water (rotation around its own axis). And by changing the rotation speed of the friction wheel 33, the initial rotation speed of the structure body entering the water can be...

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Abstract

The invention relates to the technical field of fluid mechanical engineering, in particular to a structural body rotatable entry testing device. The device is characterized in that a support piece covers a water storage box and used for bearing a position adjusting assembly and a rotation emission assembly. The position adjusting assembly comprises a first-grade adjustment track used for achievingfront and back movement, a second-grade adjustment track used for achieving left and right movement and a third-grade adjustment piece used for achieving up-down movement. A dial is installed on thethird-grade adjustment piece. The rotation emission assembly comprises a rotation part and a clamping part. The clamping part is fixedly installed on the rotation part and used for clamping the structural body and providing entry rotation speed for the structure body so as to allow the structural body to enter the water in a rotatable manner. The rotation part is used for rotating the clamping part in a vertical face so as to adjust the entry angle of the structural body. The dial is used for measuring the rotation angle of the clamping part. According to the invention, precise positioning isthe space position can be achieved; by changing the distance between the structural body and the water face, change of entry speed can be achieved; and through the rotation emission assembly, entry angles of the structural body can be changed.

Description

technical field [0001] The invention relates to the technical field of fluid mechanical engineering, in particular to a water entry test device for a structure. Background technique [0002] The water entry problem is a very complex multiphase flow problem involving solid-liquid-gas three-phase interaction across media. The process of the structure entering the water is a very short transient unsteady process, which starts from the moment the structure touches the free liquid surface, and ends when the moving body enters the water and reaches a steady state. Many complex physical phenomena will occur during the water entry process, such as water impact, splashing, water entry cavitation formation, water entry cavitation closure, water entry cavitation collapse, etc. The problem of water entry has an important relationship with many engineering applications and natural phenomena, such as: air-dropped missiles, space vehicle water recovery, ship slamming, seaplane water landi...

Claims

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Application Information

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IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 张敏弟李达钦田高翔王国玉黄彪
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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