Monitoring the Oil of Wind-Turbine Gearboxes: Main Degradation Indicators and Detection Methods

Instantaneous angular speed estimation for multi-stage wind turbine gearboxes

Real Time Remote Monitoring and Fault Detection in Wind Turbine

In new energy development, wind power has boomed. It is due to the proliferation of wind parks and their operation in supplying the national electric grid with low cost and clean resources. Hence, there is an increased need to establish a proactive maintenance for wind turbine machines based on remote control and monitoring. That is necessary with a real-time wireless connection in offshore or ...

investigation of single-user and multi-user detection methods in mc-cdma systems and comparison of their performances

در این پایان نامه به بررسی روش های آشکارسازی در سیستم های mc-cdma می پردازیم. با توجه به ماهیت آشکارسازی در این سیستم ها، تکنیک های آشکارسازی را می توان به دو دسته ی اصلی تقسیم نمود: آشکارسازی سیگنال ارسالی یک کاربر مطلوب بدون در نظر گرفتن اطلاعاتی در مورد سایر کاربران تداخل کننده که از آن ها به عنوان آشکارساز های تک کاربره یاد می شود و همچنین آشکارسازی سیگنال ارسالی همه ی کاربران فعال موجود در...

The influence of flexibility within multibody modeling of multi-megawatt wind turbine gearboxes

This work discusses the influence of flexibility within the multibody approach for wind-turbine gearbox modeling and validates them, by means of a generic gearbox calculation consisting of one planetary gear stage and two helical stages. First the state-of-the-art rigid multibody modeling with discrete flexibility is discussed. Secondly flexible multibody modeling by means of reduced finite ele...

The Lubrication Ability of Ionic Liquids as Additives for Wind Turbine Gearboxes Oils

The amount of energy that can be gained from the wind is unlimited, unlike current energy sources such as fossil and coal. While there is an important push in the use of wind energy, gears and bearing components of the turbines often fail due to contact fatigue, causing costly repairs and downtime. The objective of this work is to investigate the potential tribological benefits of two phosphoni...