Record Details

Finite element analysis and optimization of active magnetic bearings for contra-rotating coaxial rotor system<br />

Online Publishing @ NISCAIR

View Archive Info
 
 
Field Value
 
Authentication Code dc
 
Title Statement Finite element analysis and optimization of active magnetic bearings for contra-rotating coaxial rotor system<br />
 
Added Entry - Uncontrolled Name Singh, Shashank Shekhar; National Institute of Technology Kurukshetra
Kumar, Punit ; National Institute of Technology Kurukshetra
 
Uncontrolled Index Term Mechanical Engineering, Electronics Engineering
Active magnetic bearing, Coaxial rotor, Genetic Algorithm, Optimization, Rotordynamics
 
Summary, etc. <p style="text-align: justify;">This paper presents the design, analysis and optimization of active magnetic bearings (AMBs) to support the inner rotor in a contra-rotating coaxial rotor system. An FEM based rotordynamic model is developed using 8-dof Timoshenko beam elements assuming both inner and outer rotors to be flexible. The dynamic response of this system due to an unbalanced force is used in one of the constraints of a multi-objective genetic algorithm for controlling the vibration amplitude within 10% of the air gap. A maximum reduction of 46.9% in the amplitude peak is obtained under the present conditions. Hence, this work also offers a tool useful in touch-down bearing design. The PD controller gains are found to govern the stiffness and damping properties of the AMB. On increasing the mass unbalance by a factor of 2.5, number of turns, pole width and maximum current are found to increase by 52.9%, 29.4% and 71.67% respectively.</p>
 
Publication, Distribution, Etc. Indian Journal of Engineering and Materials Sciences (IJEMS)
2022-08-25 03:20:50
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJEMS/article/view/47238
 
Data Source Entry Indian Journal of Engineering and Materials Sciences (IJEMS); ##issue.vol## 29, ##issue.no## 4 (2022): IJEMS-AUGUST 2022
 
Language Note en
 
Terms Governing Use and Reproduction Note Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India © 2015. The Council of Scientific &amp; Industrial Research, New Delhi.