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System and Method for prognosis of tire condition and aiding in aircraft crew decisions

IP.com Disclosure Number: IPCOM000244212D
Publication Date: 2015-Nov-24
Document File: 6 page(s) / 145K

Publishing Venue

The IP.com Prior Art Database

Related People

Vasantha Selvi Paulraj, Mahesh Kumar Sampath, Sivaprakash Pasupathi, Karthic V: INVENTOR

Abstract

Tires are one of the most stressed components in general aviation aircraft Tires used in the aircraft carry the entire weight of the aircraft The aviation industry records several accidents due to incomplete monitoring of tires The tires of the aircraft undergo severe stress due to changing mass and exposure to different weather zones The stress on the tires leads to wear and tear It is important that the wear and tear of the tire is monitored to ensure safety of the aircraft Current methods of monitoring tires include manual inspection before flight using handheld or embedded sensors Although efficient the inspection of tires does not consider the condition of the tires through different phases of flight Any damage to the tire during takeoff roll is not considered during landing In most cases the inspection of the tires is performed by ground staff during pre flight check and the pilot may not be aware of the results of the inspection The presented solution discloses a method for diagnosing the wear and tear of tires during multiple phases of the flight

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Page 01 of 6

System and Method for prognosis of tire condition and aiding in aircraft crew decisions

Vasantha Selvi Paulraj, Mahesh Kumar Sampath, Sivaprakash Pasupathi, Karthic V

ABSTRACT

Tires are one of the most stressed components in general aviation aircraft. Tires used in the aircraft carry the entire weight of the aircraft. The aviation industry records several accidents due to incomplete monitoring of tires. The tires of the aircraft undergo severe stress due to changing mass and exposure to different weather zones. The stress on the tires leads to wear and tear. It is important that the wear and tear of the tire is monitored to ensure safety of the aircraft. Current methods of monitoring tires include manual inspection before flight using handheld or embedded sensors. Although efficient, the inspection of tires does not consider the condition of the tires through different phases of flight. Any damage to the tire during takeoff roll is not considered during landing. In most cases, the inspection of the tires is performed by ground staff during pre-flight check and the pilot may not be aware of the results of the inspection. The presented solution discloses a method for diagnosing the wear and tear of tires during multiple phases of the flight.


1. INTRODUCTION

The tires of an aircraft play an important role in the safety of aircrafts. The tires provide a cushion to aid absorption of shocks and roughness of the aircraft during landings and takeoffs. On ground, tires support the weight of the aircraft and provide the necessary traction for braking. Tires play a crucial role in stopping the aircraft during landing. Further, the aircraft's tires are exposed to different types of operating conditions, such as withstanding heavy loads for short duration, and working under extreme weather conditions. To enable aircraft tires to support different operating conditions and accept a variety of static and dynamic stresses, accurate prognosis of the tires is essential.

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Page 02 of 6

Current systems used for prognosis of tires use data from embedded sensors on tire or data provided by maintenance persons. Existing products based on sensors provide Tire Pressure Monitoring System (TPMS) and tread depth. Each aircraft has a threshold value for tire wear out. Based on the prognosis and the threshold, the decision to replace the tire is taken. Although efficient, the current system does not aid the pilot in operating the aircraft safely during all the phases of flight. For example, consider a situation when there is a tear on the aircraft tire during takeoff roll due to contact with a foreign body on the surface of the runway. The pilot may not be aware of it and even in case the pilot knows about the tear he may not be able to estimate the severity of the tear. This can lead to accidents or incidents during landing. Hence, there is a need for a system and method to aid the pilot in prognosis of tire by providing real time data.


2. PROPOSED SOLUTION O...