Balancing techniques for high-speed flexible rotors
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GUIDELINES AND CRITERIA FOR LOCATION OF PLANES AND SENSORS
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analog signal balance plane locations bearing damping Bearing Preload Factor bearing stiffness bending critical speed calculated Coordinate of Plane cos(2tt Critical Speeds Associated Curve Diameter at Flat displacement sensors eigenvalue Equation flexible probe holders flexural asymmetry gravitational excitation hard mounted influence coefficients Influence of Plane journal bearings Least Squares Lewis Research Center log decrement major diameter matrix modal correction weights moments of inertia Motor End Disk multiplane balancing NASA natural frequency Normalized Sum number of modes number of planes optimum penalty function phase angle plane and probe planes and sensors probe locations Rigid Bearings rotor configuration Rotor Mode Shapes Rotor with Flat rotor-bearing system rotordynamic Sections Bearing Preload Shaft on Rigid sin(3TT Speed for Test Sum of Correction System Critical Speed Test Rotor trial weight placement unbalance distribution Undamped Rotor Mode Uniform Shaft vertical probes Vertical Response vibration Weights for Uniform Young's modulus