Supercharge Your Innovation With Domain-Expert AI Agents!

Vibration test system and method for reliability test of helicopter blade heating components

A technology for heating components and vibration testing, which is applied in the testing of aircraft components, etc. It can solve the problems of high test cost, long cycle, high quality and rigidity of test pieces, etc., and achieve high test frequency, low cost, and convenient replacement and maintenance.

Active Publication Date: 2021-09-21
CHINA HELICOPTER RES & DEV INST
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large mass and stiffness of the test piece, the frequency of the swaying load is only 2Hz, the test period is very long, and the test cost is very high

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
  • Vibration test system and method for reliability test of helicopter blade heating components
  • Vibration test system and method for reliability test of helicopter blade heating components

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention.

[0027] In order to verify the reliability of the helicopter blade heating assembly, the present invention designs a vibration test system that can be used for the reliability test of the helicopter blade heating assembly. The vibration test system mainly includes three parts: simulated blade 1, heating assembly 2 And excitation system 3.

[0028] The simulated blade 1 is not a real helicopter blade, but a rectangular plate-shaped structure made of composite materials, and its material strain parameters are the same as the real blade.

[0029] The heating component 2 conforms to the characteristics of the heating component on the real blade (continuous heating, the heating temperature is...

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

No PUM Login to View More

Abstract

The invention relates to a vibration test system for the reliability test of a heating assembly of a helicopter blade, and relates to the technical field of helicopter structure design and testing, which includes: a simulated blade; a heating assembly laid on any surface of the simulated blade; the heating assembly Relatively fixed with the simulated blade to form a vibration test piece; and an excitation system for applying a vibration load to the vibration test piece, the vibration excitation system is clamped at a single point in the middle of the vibration test piece to make the vibration test piece Both ends of the test piece are free, and the vibration load direction of the excitation system is perpendicular to the blade surface of the vibration test piece. The vibration test system of the present invention has high test frequency and short test period, can also simulate the reliability of different heating components on different blades, has universal applicability, and has simple structure, low cost, convenient replacement and maintenance, and eliminates the need for full-size propeller Manufacture of leaves and heating components, greatly saving test costs.

Description

technical field [0001] The invention belongs to the technical field of helicopter structure design and test, and in particular relates to a vibration test piece used for the reliability test of a helicopter blade heating component. Background technique [0002] Helicopters fly under natural conditions and are prone to icing conditions. The icing environment poses a serious threat to the safe flight of helicopters. The rotor system is the main lifting surface and control surface of the helicopter. The rotor system must have anti-icing or de-icing capabilities. At present, the most commonly used anti-icing method for helicopter rotors is electric heating. Electric heating and anti-icing The heating components are designed on the inner surface of the iron-clad blade to remove the ice on the iron-clad surface and ensure the safe flight of the helicopter. Since the helicopter blade heating assembly is subjected to cyclic fatigue loads together with the blade body, the reliabilit...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B64F5/60
CPCB64F5/60
Inventor 邓景辉黄珺孟雷陈沛君古应运洪海华
Owner CHINA HELICOPTER RES & DEV INST
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com