Mechanical Vibration Testing

Introduction:

Mechanical vibration testing helps in easy detection of weak points of mechanical devices. For instance, when a circuit board is transported from far off countries it may be subjected to damage in resonant frequency. A mechanical device may fail as it is mounted over a vibration engine or due to fatigue or vibrating machine problem. Mechanical vibration testing may ensure new design that suits intended environment. This helps in revealing how certain mechanical components are assembled to meet the real world situations.

Mechanical vibration testing equipment:

• Climatic chambers
• Controllers
• Vibration exciters
• Displacement chambers
• Vibration meter
• Data analyzer
• Accelerometer
• Displacement transducer
• Electro dynamic shaker
• Hydraulic multi axis shaker

Vibration problem solving tools:

Following are tools for solving mechanical vibration problems

• Modal analysis
• Field vibration analysis & measurement
• Mode identification

Vibration testing events:

Various types of mechanical vibration testing are as follows.

• Random vibration analysis
• Sine
• Random on random vibration analysis
• Sine on random vibration analysis

Questions:

• What is mechanical vibration testing?
• What are the types of vibration testing event?
• What are analysis procedures for mechanical vibration testing?