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SpectraQuest Tech Notes
Gearbox Diagnostics
         Vibration Signature of Defected Gear Tooth Using Spectral Analysis
         Analyzing Gearbox Degradation Using Time-Frequency Signature Analysis
         Numerical Simulation of the Propagation of a Crack in Gearbox

Rolling Element Bearings
         Transient Response of Rotor on Rolling Element Bearings with Clearance
         A Study of Rolling Element bearing Defect Analysis
         Some Observations of Detection of Rolling Element Bearing Outer Race Fault
         Semi-Automated Bearing Diagnostics - Three Case Studies

Machine Condition Monitoring Technology
         State of the Art in Monitoring Rotating Machinery-Part 1

Journal Bearings
         Effects of Clearance on Damping in Fluid Film Bearing
         Interesting Rotor Dynamics Observations on Oil Whirl and Whip
         Dynamic behaviors of Rotor with Fluid Film Journal & Rolling Element Bearings

Unbalance
         Vibration Signature of Overhung Rotor with Unknown Initial Conditions

Rotor Misalignment
         Misalignment Detection Using ODS
         Observations Concerning Misalignment Vibration Signatures
         Using ODSs to Detect Shaft Misalignment in Rotating Equipment

Torsional Vibration
         Torsional Vibration Simulation Using a Universal Joint

Pumps
         Air Bubble and Cavitations Vibration Signatures of a Centrifugal Pump

Signal Processing
         Rotating Machinery Faulty Diagnosis Techniques- Envelope and Cepstrum Analyses
         Applications of Time-Frequency Analysis Techniques on Machinery Fault Diagnosis

Bent Shaft
         Vibration and Force Signatures of Bent Shaft

Belts
         Vibration Analysis of Belt Drives in Rotating Machinery
         Correlation between Belt Natural Frequencies and Vibration Spectra
         A Study of Belt Natural Frequency

Motor Diagnostics & MCSA

         Diagnostics of Induction Motor with Broken Bars Using Motor Current Signature Analysis

         (MCSA)
         White Paper on Motor Current Signature Analysis

Rotordynamics
         Rotor Dynamic Analysis Using XLRotor
         Critical Speeds in Rotating Machinery

Mechanical Rub
         The Effects of Shaft Rub on bearing Housing Vibration Signatures

Fan Problems
         Vibration Signal Analysis of Fan Rotors

Crack Shaft
         Simulation and Vibration Analysis of Shaft Cracks

Compressor
         Vibration Signatures of Reciprocating Compressors

Miscellaneous
         A constitutive Equation for Thermoviscoelastic Behavior of Polymeric Materials
         VibroMet 500V: Single Point Laser Doppler Vibrometer

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