Design and Analysis of Large Induction Motors from a Mechanical Standpoint : EDI

Design and Analysis of Large Induction Motors from a Mechanical Standpoint, Turbomachinery Symposium, Houston, Texas, 2023.

• Two-pole versus four-pole motors
• Complications with two-pole having higher speed, uneven magnetic forces, variable speed operation
• Review of American Petroleum Institute (API) 541 and 684 for rotordynamic analysis and shop testing
• Difference between rigid rotor and flexible rotor
• Lateral critical speed analysis, unbalanced response, bearing span, core stiffness
• Finite Element Analysis (FEA) for structural analysis of frame and bearing housings
• Shop mechanical run test
• Impact testing
• Operating deflection shape / modal analysis
• How design and testing steps are implemented throughout the manufacturing and acceptance process

Rotordynamics

Design and Analysis of Large Induction Motors from a Mechanical Standpoint