Julien Griffaton

Title: Innovations of Julien Griffaton

Introduction

Julien Griffaton is an accomplished inventor based in Paris, France. He has made significant contributions to the field of engineering, particularly in the area of engine monitoring and damage detection. With a total of 3 patents to his name, Griffaton's work showcases his expertise and innovative spirit.

Latest Patents

One of his latest patents is a method for detecting damage in at least one engine roller bearing. This method involves acquiring a current vibration signal of an engine component's mechanical vibration across a set measuring period of changes in shaft speed. The process includes capturing the signal during this period, synchronizing it relative to the changes in speed, and transforming the signal into a frequency signal to obtain frequency spectrum lines. By calculating the mean amplitude of these spectrum lines, a current vibration signature for the engine is obtained. This signature is then compared to a healthy reference signature to determine potential damage to the roller bearing.

Another notable patent is a method and system for monitoring a turbojet engine. This method acquires a signal representative of the vibratory level of an operating rotor of the turbojet engine and the rotation speed of the rotor during operation. It compares the amplitude of the signal with predetermined thresholds based on the rotor's rotation speed. If an amplitude peak exceeds the threshold, the signal is analyzed over a defined time slot to determine if the peak is due to a mechanical shock or electronic interference.

Career Highlights

Julien Griffaton has worked with prominent companies in the aerospace industry, including Snecma and Safran Aircraft Engines. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in engine technology.

Collaborations

Throughout his career, Griffaton has collaborated with talented professionals such as Serge Blanchard and Valerio Gerez. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Julien Griffaton's contributions to engine monitoring and damage detection highlight his innovative capabilities and dedication to engineering excellence. His patents reflect a commitment to improving safety and efficiency in aerospace technology.