VOLUME REINFORCING SOLID-WOVEN PREFORMS FOR MANUFACTURING OF POLYMER COMPOSITE MATERIALS (review)

The article presents results of development of a new method for temperature calculation of the multi-fuel nozzle inner wall based on data on heat flux. A patent search and an analysis of scientific and technical information on the multi-fuel nozzles were carried out. It was established that one of the most effective ways to prevent appearance and rapid formation of carbonaceous deposits in liquid hydrocarbon fuels was to reduce temperature of the metal wall. New formulae were obtained to calculate the inner surface temperature depending on the amount of heat-transfer agents and their thermophysical properties, geometric characteristics of the supply channels and the injector “dry” mass. A comparative theoretical calculation of the temperature decrease inside a single-fuel and a dual-fuel nozzles was carried out at different mass flow rates of kerosene. The results obtained indicate higher cooling efficiency of multi-fuel nozzles compared to the single-fuel ones.

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Weak links design for the main landing gear leg mount

Титов¹,

Serebryanskiy²

2023

EJSI

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The paper presents an overview of the main strength requirements to the typical civil aircraft landing gear design. Elements of the main landing gear leg mount on the airframe were considered in more detail. In the mount points, shear bolts called the ”weak links” are usually installed in order to prevent transferring the dangerous loads during rough landing to the critical airframe sections. Next, calculations of the typical “weak link” effecting the shear were compared by two methods. Analytical static calculation showed the shear force value being lower than the dynamic calculation by the finite element method, which indicates the need for additional research to identify true value of the shear force in the weak link section during the aircraft rough landing.

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VOLUME REINFORCING SOLID-WOVEN PREFORMS FOR MANUFACTURING OF POLYMER COMPOSITE MATERIALS (review)

Cited by 4 publications

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Methodological Aspects of Determining Fiber—Matrix Adhesive Strength by Pushing out Monofilament with an Indenter

Methodological Aspects of Determining Fiber—Matrix Adhesive Strength by Pushing out Monofilament with an Indenter

Development of a method for temperature calculation of the multi-fuel nozzle inner wall based on heat flux

Weak links design for the main landing gear leg mount

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