RELIABILITY TESTING DEVICE FOR COMPOSITE MATERIAL PROPELLER BLADE OF ROTOR UNMANNED AERIAL VEHICLE IN WINDY AND SANDY ENVIRONMENTS

WIPO Patent Application WO/2019/227639

A1

A reliability testing device for a composite material propeller blade of a rotor unmanned aerial vehicle in windy and sandy environments, comprising a device body (1), a wind direction adjustment apparatus (5), a sand guiding apparatus (6), a laser vibration measurement apparatus (2), and a sand circulation apparatus (3); a laser beam is emitted by a Doppler laser vibration measurement meter (4), directed to a first reflective mirror (12) via a laser guiding tube (17), and horizontally reflected to a second reflective mirror (22) using the principle of light reflection, and the laser beam of the second reflective mirror (22) is reflected by an elliptical thin-walled reflective mirror (19) to a measurement position of the composite material propeller blade (15); global scanning of the measurement point of the composite material propeller blade (15) is implemented by means of rotating the elliptical thin-walled reflective mirror (19); a drive motor (23) controls the excitation frequency in order to control the flow of sand, and a flow valve (36) and a fan blade (33) control the size and direction of the air flow; measurement of multiple measurement points of the composite material propeller blade (15) in windy and sandy environments is thereby implemented, acquiring a composite material propeller blade (15) that meets the requirements of working in windy and sandy environments, and preventing the multi-rotor unmanned aerial vehicle from being unable to work normally or even cause a safety accident due to the composite material propeller blade (15) being broken or damaged.

JPS6475060	DETECTOR OF SPRAY FAILURE OF LIQUID SPRAY EQUIPMENT
WO/2020/073578	DEVICE FOR TESTING BEARING PERFORMANCE OF VERTICAL SHAFT LIFTING SPINDLE DEVICE
JPH0726742	[Name of invention] Inspection device for intake and exhaust pipes of internal combustion engine

LI HUI (CN)
CHEN YANWEI (CN)
CHEN XI (CN)
CHEN DA (CN)
LIU HONGHAO (CN)
LI CHAOFENG (CN)
YAO HONGLIANG (CN)
WEN BANGCHUN (CN)

PCT/CN2018/096959

December 05, 2019

July 25, 2018

Click for automatic bibliography generation  

UNIV NORTHEASTERN (CN)

G01M13/00; G01M7/00; G01M9/00; G01N3/00; G01N17/00

CN108195749A	2018-06-22
CN104406756A	2015-03-11
CN103091116A	2013-05-08
CN104165652A	2014-11-26
CN104019965A	2014-09-03
CN105486499A	2016-04-13
CN207263431U	2018-04-20
CN204439509U	2015-07-01
JP2017096742A	2017-06-01

SHENYANG DONGDA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)

View/Download PDF      PDF Help

Previous Patent: FLOSSER

Next Patent: REAGENT AND METHOD FOR REPAIRING FBN1T7498C MUTATION USING BASE EDITING