Unlock instant, AI-driven research and patent intelligence for your innovation.

Special windsock of helipad made of glass fiber reinforced plastics

A technology of windsock and fiberglass, which is applied in the direction of aircraft parts, measuring devices, instruments, etc., can solve the problems of large reverse force of the impact body, threat to aircraft safety, and not easy to break, so as to achieve easy breakage, improve safety performance, and not break. easy to break effect

Pending Publication Date: 2019-08-09
成都辟思航空科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing windsocks are usually supported by a steel frame. Although they have strong outdoor applicability, at the same time, they are not easy to break when they are hit, and they will exert a large reverse force on the impact body. poses a serious threat to the safety of aircraft

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Special windsock of helipad made of glass fiber reinforced plastics
  • Special windsock of helipad made of glass fiber reinforced plastics
  • Special windsock of helipad made of glass fiber reinforced plastics

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The preparation method of described FRP is:

[0037] (1) Stir the bisphenol epoxy vinyl resin, phenolic resin, calcium carbonate, and aluminum hydroxide with a high-speed mixer for 0.5-1.5 hours, mix thoroughly and evenly, and the temperature during stirring is 50-80°C.

[0038] (2) Then add ultraviolet absorber, curing agent and release agent, keep the temperature at 50-80°C, stir for 0.5h-1.5h to obtain a mixture.

[0039] (3) The mixture is placed in a fiberglass pultrusion machine for pultrusion to obtain the required fiberglass. The temperature of the pultrusion is 200-220°C, the ambient temperature needs to be kept at 10-30°C, the pultrusion speed=25+(20-environment temperature)×0.85, unit: cm / min.

Embodiment

[0042] 1. Prepare 16 groups of FRP according to the above method, and carry out extrusion molding under the condition of pultrusion molding temperature of 210°C. The actual preparation parameters of each group of FRP are shown in Table 1, and the values ​​of each component in the table refer to parts by mass. Both the curing agent 1 and the curing agent 2 are purchased from Changzhou Changsheng FRP Material Co., Ltd., the curing agent 1 is an unsaturated resin curing agent, and the curing agent 2 is an epoxy resin curing agent.

[0043] Table 1 Reference table for the preparation parameters of each group of FRP

[0044]

[0045]

[0046]

[0047] 2. Test the flexural strength and shear strength of each group of FRP, and the results are shown in Table 2.

[0048] Table 2 Performance display table of each group of FRP

[0049] group Bending strength (MPa) Shear strength (MPa) group 1 430 15 group 2 462 11 group 3 428 14 group 4 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Bending strengthaaaaaaaaaa
Shear strengthaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of airport special equipment, and particularly relates to a special windsock of a helipad made of glass fiber reinforced plastics. According to the specific technical scheme, the windsock comprises a hollow brittle rod vertically arranged, bending strength of materials of the brittle rod is greater than or equal to 300 MPa, and shearing strength of the materialsof the brittle rod is less than or equal to 15 MPa; the windsock is arranged on the middle and upper part of the brittle rod, and rotary connectors capable of making the windsock to axially rotate around the brittle rod are correspondingly arranged on the connection position of the windsock and the brittle rod and on the brittle rod; and the brittle rod uses special glass fiber reinforced plasticsand is prepared from the components in parts by weight: 30-40 parts of bisphenol epoxy vinyl resin, 25-30 parts of phenolic resin, 10-15 parts of calcium carbonate, 15-20 parts of aluminum hydroxide,and 30-40 parts of fiberglass. The special windsock is not prone to breaking off when exposed to strong wind, very prone to breaking off and breaking during impacting, and very suitable for using inan airport.

Description

technical field [0001] The invention belongs to the field of special equipment for airports, and in particular relates to a special windsock made of glass fiber reinforced plastic for helipads. Background technique [0002] The windsock is a kind of wind direction indicating device at the airport. It can specifically indicate the wind direction and approximate wind speed, and has an important indication function for the general movement of the aircraft. Limited by the size of the site (especially the elevated apron), the windsock can only be installed near the apron, very close to the aircraft. At this time, the windsock installation frame should comply with Article 4.1.5 of the Civil Heliport Flight Site Technical Standard (MH5013-2014), "except for frangible objects that must be installed in this area due to functional requirements, no high A fixed object on the FATO plane.” stipulated. However, the existing windsocks are usually supported by a steel frame. Although they...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01P13/02B64F1/36
CPCG01P13/02G01P1/00B64F1/36
Inventor 张儆伦
Owner 成都辟思航空科技有限公司