Active Magnetic Bearings Case Study

1141 Words5 Pages
CHAPTER- 1 INTRODUCTION 1. INTRODUCTION Active Magnetic Bearings (AMBs) have advantages over conventional bearings. Their uncommon features and the appeal towards high speed machines make them attractive for certain common rotor/bearing applications. Thus, AMBs have been researched significantly for a few years, and several advance improvements in performance have been achieved. A magnetic bearing system where the rotor is magnetically suspended. A magnetic bearing system has the advantage that it does not need any oil. This advantage will prevent radioactive contamination of the system in case of the reactor. This in turn makes the surrounding environment safer. As compared to a conventional lubricated…show more content…
1.3 Limitation of AMBs: Magnetic bearings have lower load capacity I. e-maximum load per unit of area than conventional bearings. • Magnetic bearings require power to control the system, and to drive sensors and electromagnets increasing system complexity and initial cost Losses in magnetic bearings is mainly due to eddy currents that limit the rotational frequency of rotors (heating up, driving power). • The eddy current losses can be reduced by dividing the iron core into insulated sheets. Magnetic bearings with high precision control of the rotor position require adequate signal processing and high resolution sensing. 1.4 Developments of AMB s: • AMB technology is a type of Mechatronic application that combines and integrates Mechanics, electronics and computer science. Now a day; it is used in various engineering Fields such as aerospace, reactor applications. • The CSIR-National Aerospace Laboratory, Bangalore and the IGCAR, Kalpak am having collaborated to develop 5 axis levitation of AMBs rig for a reactor application. • Another development of magnetic bearing application is single axis levitation of AMB
Show More
Related

  • Brain Cancer Segmentation Case Study

    5655 Words  | 23 Pages

    patient is placed in a strong magnetic field which causes the protons in the water molecule of the body to align in either a parallel (low energy) or anti-parallel (high energy) orientation with the magnetic field. Then a radiofrequency pulse is introduced which forces the spinning protons to move out of equilibrium state. When a radio frequency pulse is stopped, the protons return to equilibrium state and produce a sinusoidal signal at a frequency dependent on the local magnetic field. Finally, a radio

    Read More

  • Bipedal Robots Abstract

    10433 Words  | 42 Pages

    CHAPTER 1 INTRODUCTION 1. INTRODUCTION 1.1Bipedal Robot:- The term bi-pedal robot refers to a robot that walks on two legs. In the recent years there has been much interest stimulated in dynamic walking in bipedal robotics and legged locomotion in general. Part of reason for this interest is the need for robot which can operate in human oriented environments. Human presents a very elegant model of locomotion to emulate. The Bipedal robots will operate in the human environment with much

    Read More

  • Chronic Wound Literature Review

    9466 Words  | 38 Pages

    non-healing chronic injury (Guo S., et al., 2010). The presence of a chronic injury can hinder day to day life and also the affected persons. In case of older peoples, presence of wound can be debilitating them and altogether meddle with their self consideration.

    Read More

More about Active Magnetic Bearings Case Study

Open Document