Course DC50 (8 Hrs) - FAA Course: C-IND-IM-120316-K-006-018

Helicopter Vibration Analysis

Description: This course introduces vibration theory and vibration analysis as applied to fixed-wing aircraft. The classroom session emphasizes vibration theory and methods available for use in performing vibration analysis of rotary-wing aircraft. The flight line session allows the equipment user to have "hands-on" experience installing and using the MicroVib II Aircraft Analyzer on actual aircraft.

Who Should Attend: Recommended for aircraft maintenance technicians and engineering personnel who have little or no previous experience in vibration theory and/or balancing.

Classroom Session (6 hrs):

• Physics and Vibration Theory
• Vibration Frequency and Magnitude
• Common Causes of Vibration
• Measuring Vibration
• Balancing Rotating Machinery
• Waveform vs. Spectrum Analysis
• Spectrum Frequency Range and Resolution
• Machine Component Identification
• MicroVib II File System and File Types
• MicroVib II Application Notes
• MicroVib II Balancing Standard Rotors
• MicroVib II Spectrum Analysis
• Reciprocating Engine Vibration Analysis
• Turbine Engine Vibration Analysis
• Helicopter Drivetrain Vibration Analysis
• MicroBase Professional Vibration Analysis
• Spectrum Plots, Cursors and Markers
• First Order and Harmonic Vibration
• Parallel Shaft Gear Vibration Theory
• Planetary Drive Gear Vibration
• Modulation / Sideband Vibration
• Bearing Vibration Analysis
• Machine Component Identification

Flightline Session (2 hrs):

• Equipment Installation and Setup
• Rotating Machinery Balancing
• Aircraft Vibration Analysis
• Myths and Misconceptions
• Common Errors
• Post Processing with MicroBase Professional