Magnetorheological Fluid Utilized for Online Rotor Balancing.

Area of Science:

• Mechanical Engineering
• Materials Science
• Control Systems

Background:

• Rotor unbalance in machinery leads to vibrations, decreased lifespan, and reduced efficiency.
• Conventional offline balancing methods have limitations in addressing dynamic unbalance.
• Active vibration reduction is crucial for modern rotating machinery.

Purpose of the Study:

• To develop and validate an online rotor balancing system using Magnetorheological Fluid (MRF).
• To overcome the limitations of traditional offline balancing techniques.
• To demonstrate the effectiveness of MRF-based active vibration reduction.

Main Methods:

• Design of a novel online balancing system with three MRF chambers and balancing spheres.
• Development of a hybrid magnetic system for contactless control of sphere positioning.
• Creation of a control algorithm based on multiphysics modeling and experimental parameterization.

Main Results:

• Experimental validation confirmed the system's high effectiveness in reducing initial rotor unbalance.
• The proposed concept was proven feasible for practical application.
• The hybrid magnetic design demonstrated inherent multistability and energy efficiency.

Conclusions:

• The developed online MRF rotor balancing system is a feasible and effective solution for active vibration reduction.
• The hybrid magnetic system offers inherent multistability and energy efficiency.
• This technology promises to enhance the lifespan and efficiency of rotating machinery.