User Guide

Tutorials

• Tutorial - Modeling
• Section 1: Material Class
• Section 2: ShaftElement Class
• Section 3: DiskElement Class
• Section 4: BearingElement and SealElement Classes
• Section 5: PointMass Class
• Tutorial - Assembling a Rotor
• Section 1: Creating a rotor model
• Section 2: Visualizing the rotor model
• Section 3: Adding new nodes
• Section 4: Adding new elements
• Section 5: Creating a rotor from sections
• Section 6: Saving a rotor model
• Section 7: Loading a rotor model
• Section 8: Concatenating rotors
• Section 9: Using CouplingElement as a lumped element
• Tutorial - Units
• Section 1: Adding units
• Section 2: Changing plot units
• Tutorial - General Bearing Classes
• Section 1: BearingElement
• Section 2: BallBearingElement
• Section 3: RollerBearingElement
• Section 4: CylindricalBearing
• Tutorial - Fluid-Film Bearings
• Section 1: PlainJournal
• Section 2: TiltingPad
• Section 3: ThrustPad
• Section 4: SqueezeFilmDamper
• Tutorial - Active Magnetic Bearings (AMB)
• Section 1: Introduction and Working Principle
• Section 2: Declaring a Magnetic Bearing
• Section 3: Modal Sensor–Actuator Non-Collocation Analysis
• Section 4: Evaluating Time Response
• Section 5: Collecting Forces and Control Currents
• Section 6: Sensitivity Analysis (ISO 14839)
• Section 7: Implementing Complex Controllers (Cascade)
• Section 8: Equivalent Stiffness Calculation
• Tutorial - Seals
• Section 1: Labyrinth Seal
• Section 2: Hole-pattern Seal
• Section 3: Hybrid Seal
• Section 4: Frequency-dependent (asynchronous) coefficients
• Tutorial - Static and Modal Analyses
• Section 1: Static Analysis
• Section 2: Modal Analysis
• Section 3: Campbell Diagram
• Tutorial - Time and Frequency Analyses
• Section 1: Frequency Response
• Section 2: Unbalance Response
• Section 3: Clearance Analysis
• Section 4: Time Response
• Section 5: Undamped Critical Speed Map (UCS)
• References
• Tutorial - Faults
• Section 1: Misalignment
• Section 2: Rubbing
• Section 3: Cracks
• References
• Tutorial - MultiRotor System
• Section 1: Constant Mesh Stiffness
• Section 2: Time-Varying Mesh Stiffness
• Section 3: Backlash Analysis
• References
• Tutorial - Three-Phase Induction Motor
• Section 1: Motor model
• Section 2: Direct-on-line start
• Section 3: Variable frequency drive with V/f adjustment technique
• Section 4: Variable frequency drive with field-oriented control
• Section 5: Coupling the motor to a rotor
• References
• Tutorial - Stochastic ROSS
• Section 1: Random Sampling
• Section 2: Classes Name
• Section 3: ST_Material
• Section 4: ST_ShaftElement
• Section 5: ST_DiskElement
• Section 6: ST_BearingElement
• Section 7: ST_Rotor
• Section 8: Running the simulation
• Section 9: Obtaining results
• Section 10: Plotting results

Discussions and Examples

• Example 1 - Number of DOF influence in Natural Frequency
• Example 2 - Effect of varying slenderness ratio
• Example 3 - Isotropic Bearings, asymmetrical rotor.
• Example 4 - Anisotropic Bearings.
• Example 5 - Cross-coupled bearings.
• Example 6 - Isotropic bearings with damping.
• Example 8 - Overhung rotor.
• Example 13 - Uncertainties on bearings coefficients
• Example 14 - Uncertainties on material properties
• Example 16 - Look at different models of the disk-shaft interface
• Example 17 - Features of Eigenvalues and Eigenvectors - Isotropic Bearings
• Example 18 - Features of Eigenvalues and Eigenvectors - Anisotropic Bearings
• Example 19 - Features of Eigenvalues and Eigenvectors - System with Mixed Modes
• Example 20 - Features of Eigenvalues and Eigenvectors - Cross-Coupling in the Bearings
• Example 21 - Features of Eigenvalues and Eigenvectors - Hydrodynamic Bearings
• Example 22 - Features of Eigenvalues and Eigenvectors - The Effect o f Axial Load and Follower Torque
• Example 23 - An Overhung Rotor
• Example 24 - A Tapared Shaft
• Example 25 - Overhung Rotor on Flexible Supports
• Modal Shapes
• Example 26 - Isotropic System
• Plotting the Campbell Diagram
• Plotting the Mode Shapes and Damped Natural Frequencies
• Creating the out-of-balancing
• Plotting the Orbit using the Plotly library
• Plotting the Orbit using the Matplotlib library
• Example 27 - Anisotropic System
• Plotting the Campbell Diagram
• Plotting the Mode Shapes and Damped Natural Frequencies
• Creating the out-of-balancing
• Plotting the Orbit using the Plotly library
• Plotting the Orbit using the Matplotlib library
• Major Axis Amplitude of the response at nodes 2 and 4
• Example 28 - Rigid rotor on isotropic bearings
• Example 29 - Rigid rotor on anisotropic bearings
• Example 30 - Natural frequencies, mode shapes and natural frenquency map of a rigid rotor
• Example 31 - Isotropic Bearings with Damping
• Example 32 - Response to Forces Applied through Auxiliary Bearings