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Guide streamer

A streamer, together technology, applied in the direction of fluid flow, mechanical equipment, etc., can solve the problems of poor ability to suppress vortex-induced vibration, rough surface of the streamer cable, reduce the resistance of the streamer, etc. The effect of vortex-induced vibration

Inactive Publication Date: 2012-05-02
THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The second is to install diversion ribbons on the towline, which can suppress the vortex-induced vibration of the towline and reduce the resistance of the towline, but the effect is not as good as the diversion sleeve
This kind of guide ribbon cable has a rough appearance, high resistance, and poor ability to suppress vortex-induced vibration

Method used

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Examples

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with accompanying drawing: figure 1 As shown, the guide streamer 2 is made of rain cloth material for making raincoats. This material is waterproof, smooth in surface and high in strength. Cut the rain cloth (or similar material) to a length of 1000mm in the axial direction and a width of 3.14D+L (D represents the diameter of the bare cable, and L is about 8 to 10 times the diameter of the cable), wrap it outside the tow cable 1, and use a high-frequency The hot press presses and bonds two pieces of rain cloth together at the root of the tow cable, and the width of the bonding is greater than 15mm. Then the whole guide streamer 2 is cut into many strips of uniform width, about 5-10 times of the cable diameter. Then use a high-frequency heat press to press and glue the two pieces of rain cloth together on the cut side. Finally sew all the taped seams with a portable sewing machine to make it even mo...

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Abstract

The invention relates to a guide streamer, which is made of a waterproof cloth material for making raincoats. The guide streamer is wrapped outside a towrope, and a ratio of the length L of the guide steamer to the diameter D of the towrope is 8-10; the guide streamer wrapped at the root of the towrope is compressively bonded together by adopting a high-frequency hotpressing machine, wherein the compressive bonding width is more than 15mm; the compressively-bonded guide streamer is cut into a plurality of strips with even width which is about 5-10 times of the diameter of the towrope; cut edges of the guide streamer are compressively-bonded together by adopting the high-frequency hotpressing machine; and compressively-bonded seams generated by compressively bonding the guide streamers together are firmly sewn by adopting a portable sewing machine. The guide streamer disclosed by the invention has the beneficial effects that: the guide streamer is capable of greatly reducing resistance of the towrope and restricting vortex-induced vibration of the towrope; meanwhile the guide streamer has the advantages of simple manufacturing method, low cost, high reliability and long service life.

Description

technical field [0001] The invention relates to the field of hydrodynamics, in particular to a flow guiding ribbon installed on a tow cable, which relates to fluid resistance, sinking depth and vibration when towed in water. Background technique [0002] In many towing equipment, tow cables are required, such as towed line arrays. The function of the tow cable is to withstand the gravity and fluid resistance of the towed equipment and itself, while transmitting signals. Generally, when designing a towing system, there are requirements for the length of the cable and the sinking depth, that is, the shortest possible cable should be used to reach the required depth. Under the condition that the size, weight and resistance characteristics of the underwater towed equipment are determined, under a certain cable length and towing speed, in order to obtain the maximum possible depth, it is necessary to reduce the drag coefficient of the towed cable and reduce the drag coefficient ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15D1/00
Inventor 洪有财陈小星
Owner THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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