A cable penetration structure embedded in a composite shell

A composite material and shell technology, applied in electrical components and other directions, can solve the problems affecting the aerodynamic shape of the projectile, and achieve the effects of excellent erosion resistance, stable performance and reduced bending radius.

Active Publication Date: 2019-01-18
XIAN AEROSPACE PROPULSION TECH INST
View PDF18 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the previous method of installing cables on the outer wall of the engine compartment, the cables need to be penetrated into the cabin from outside the cabin. At the same time, due to structural restrictions, the cable holes on the bulkhead cannot be opened too large. Excessive bending radius in the cabin will cause local protrusions near the hatch, which will affect the aerodynamic shape of the projectile

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
  • A cable penetration structure embedded in a composite shell
  • A cable penetration structure embedded in a composite shell
  • A cable penetration structure embedded in a composite shell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0025] The invention provides a cable penetration structure embedded in a composite material shell, such as figure 1 As shown, it includes through-hole wear-resistant parts 2, a fairing 4 and a fiber fixing part 5; the peripheral parts include a composite material shell 1 and a cable 3.

[0026] Composite material housing 1 has oblique holes, and the embedded cable hole structure is designed as oblique hole type according to the number of cable cores. The angle of the oblique hole in the embodiment is 30°, which can minimize the local protrusion of the cable 3 caused by the transition of the bending radius, thereby strengthening the damage to the projectile by aerodynamic heating. If the angle of the inclined hole is greater than 60°, the aperture of the inclined hole can also be increased, so that the cable 3 does not need to pass into the cabin along th...

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
Axis angleaaaaaaaaaa
Login to view more

Abstract

The invention discloses a cable penetration structure buried in a composite material shell, comprising a through-hole wear-proof member, a fairing and a fiber fixing member, and peripheral componentscomprising a composite material shell and a cable. An inclined hole is arranged on the composite material housing, and a through-hole wear-proof member is fixed along the outer wall of the inclined hole; the cable enters the housing through the inclined hole; the fairing is fixed at the corner formed by the cable and the outer wall of the housing for mold surface transition; and the fiber fixing member is wound on the outer wall of the fairing and the cable outside the housing by ring direction; The fairing is made of low thermal conductivity material. The invention can effectively reduce thebending radius of the cable, optimize the aerodynamic shape of the projectile body and has good heat insulation performance.

Description

technical field [0001] The invention relates to the technical field of solid rocket motors, in particular to a cable penetration structure embedded in a composite material casing. Background technique [0002] The solid rocket motor is often used as a compartment of the projectile (arrow), and the control cables of the whole projectile (arrow) usually need to pass through the outer wall of the thin-walled shell of the compartment of the engine. The metal shell is specially designed with a cable cover support outside the shell to fix the cable and the cable protection cover. With the progress and development of composite materials and process technology, more and more engines use composite materials, the manufacturability of thin-walled shells is further improved, and the performance of engines is effectively improved. [0003] The composite material shell can pre-embed the cables on the bullet inside the shell during the molding process, and the penetrating structure is an ...

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): H02G3/22
CPCH02G3/22
Inventor 孙展鹏史宏斌张浩哲王云霞刘东洋余文学李国才李鑫
Owner XIAN AEROSPACE PROPULSION TECH INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap