API 617 Rotordynamics Suite

Project & Excel Data I/O

1. Shaft Elements (Hollow/Solid)

Click to expand
El.LRLen(mm)ID(mm)OD(mm)Material SelectE (GPa)Density (kg/m³)

2. Speed-Dependent Bearings & Supports

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NodeRPMKxxKxyKyxKyyCxxCxyCyxCyy

3. Discs & Shrink Fit Hubs

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NodeMass (kg)IpIt
NodeNom. DiaHub ODFit LenInterf.

4. External Loads (Gears & Gas Side Loads)

5. Probes & Impellers

Probe NameNodeProbe Phase (°)
NodePower (kW)Head (m)
NodeMag (kg·m)Phase (°)
NodeXYThetaXThetaY
Validation /acceptance expand/collapse
Critical Speed (Nc1)
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API Stability Q/Q0
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Amp. Factor
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API 617 Level I Stability Evaluation:
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Dry Undamped Critical Speeds:
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API Interference & Torque Verification:
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Click "Preview Geometry" or "Run Solver" to render the 2D rotor model.

Multi-Plane Orbit Balancing

Hold Ctrl (Windows) or Cmd (Mac) to select multiple.

Calculated Weights:

Awaiting calculation...