[go: up one dir, main page]

Chen, 1989 - Google Patents

Magnetic bearings and flexible rotor dynamics

Chen, 1989

Document ID
17650325563586501344
Author
Chen H
Publication year
Publication venue
Tribology transactions

External Links

Snippet

The mechanics of an active magnetic bearing (AMB) is explained by presenting a practical AMB control scheme. The scheme comprises three parallel feedback loops to achieve dynamic stiffness, static stiffness and damping. These AMB properties are presented for …
Continue reading at www.tandfonline.com (other versions)

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0444—Details of devices to control the actuation of the electromagnets
    • F16C32/0451—Details of controllers, i.e. the units determining the power to be supplied, e.g. comparing elements, feedback arrangements with P.I.D. control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0474—Active magnetic bearings for rotary movement
    • F16C32/0476—Active magnetic bearings for rotary movement with active support of one degree of freedom, e.g. axial magnetic bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0459—Details of the magnetic circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0442—Active magnetic bearings with devices affected by abnormal, undesired or non-standard conditions such as shock-load, power outage, start-up or touchdown
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING ENGINES OR PUMPS
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0474—Active magnetic bearings for rotary movement
    • F16C32/0489—Active magnetic bearings for rotary movement with active support of five degrees of freedom, e.g. two radial magnetic bearings combined with an axial bearing

Similar Documents

Publication Publication Date Title
Kimman et al. A miniature milling spindle with active magnetic bearings
Kang et al. Homopolar magnetic bearing saturation effects on rotating machinery vibration
US5666014A (en) Velocity-controlled magnetic bearings
Liu et al. Research on automatic balance control of active magnetic bearing‐rigid rotor system
Li et al. Compensation of rotor imbalance for precision rotation of a planar magnetic bearing rotor
He et al. Piezoelectric self-sensing actuator for active vibration control of motorized spindle based on adaptive signal separation
Johnson et al. Adaptive variable bias magnetic bearing control
Chen Magnetic bearings and flexible rotor dynamics
Xu et al. Unbalance Suppression for AMB Rotor System Using APF‐SRF Algorithm
Ye et al. Vibration suppression for active magnetic bearings using adaptive filter with iterative search algorithm
Jastrzebski et al. Design, modelling and control of MIMO AMB system with 3 radial bearing planes for megawatt-range high-speed rotor
Chen et al. Magnetic bearing with rotating force control
Antila Electromechanical properties of radial active magnetic bearings
Szolc et al. Determination of parameters for a design of the stable electro-dynamic passive magnetic support of a high-speed flexible rotor
Xiang et al. Rotating characteristics and stability analysis of unsymmetrical magnetically suspended motor
Jaatinen Design and control of a permanent magnet bearingless machine
Ren et al. Rotation modes stability analysis and phase compensation for magnetically suspended flywheel systems with cross feedback controller and time delay
Zhuravlev et al. Numerical study of robust control for an AMB rotor with uncertain speed
Xuan et al. Magnetic bearing application by time delay control
Khayyam et al. Active magnetic bearing design and backstepping-adaptive control for high-speed rotors
Habib et al. Control of dual acting magnetic bearing actuator system using fuzzy logic
Rarick Control of an active magnetic bearing with and without position sensing
Tao et al. Adaptive Proportional Derivative Control for Magnetic Bearing in Full Maglev Left Ventricular Assist Device
Tang et al. Design and Implementation of a Fault‐Tolerant Magnetic Bearing System for MSCMG
Kähkönen Commissioning and SISO-based position control of an AMB levitated high speed induction motor