Method for determining allowable defects of helicopter composite main rotor blade

The invention relates to a method for determining allowable defects of a helicopter composite main rotor blade and belongs to the technical field of structural fatigue design of helicopters. The method comprises the following steps: determining forms and easily occurring areas of a defect according...

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1. Verfasser:	GU WENBIAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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creator	GU WENBIAO
description	The invention relates to a method for determining allowable defects of a helicopter composite main rotor blade and belongs to the technical field of structural fatigue design of helicopters. The method comprises the following steps: determining forms and easily occurring areas of a defect according to the function and structure of each area of a main rotor blade and process control and other conditions in the manufacturing process; predicting the maximum allowable size of the defect based on the principles such as detection simplicity, statistics and process controllability, and prefabricating on a full-sized test piece; determining the rationality of defect parameters by adopting a test of simulating fatigue and residual strength in a real load environment, determining the defect types in critical prevention and control of the composite main rotor blade, and establishing the defect allowable standard. According to the method, a technical basis can be provided for treatment of the various defects in the produ
format	Patent
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subjects	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
title	Method for determining allowable defects of helicopter composite main rotor blade
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