VEENG 1 Quiz

What is vibration?

• The periodic back-and-forth motion of particles in an elastic body

• The displacement of a physical system from its equilibrium condition

• The response of a system to external forces

• The restoration of equilibrium in a physical system

3 MAIN CHARACTERISTICS OF VIBRATION

Answer explanation

FREQUENCE, AMPLITUDE OR INTENSITY, ACCELERATION

tests can be performed both in the field and in more controlled lab environments

Which type of vibration occurs when no external force is applied to a body?

• Free or natural vibration

• Forced vibration

• Damped vibration

• Longitudinal vibration

an analysis of physical signals, mathematical functions, or time series of economic or environmental data, in reference to time.

Answer explanation

TIME-DOMAIN ANALYSIS

a simple way to do dynamic analysis and see how a machine or a structure moves within its operational conditions

analysis involved identifying the different modes of vibration

Answer explanation

MODEL ANALYSIS

IMPORTANCE OF FREQUENCY IN ENGINEERING

Answer explanation

PREDICTIVE MAINTENANCE, OPTIMIZATION, QUALITY CONTROL, SAFETY, ENERGY EFFICIENCY, RESEARCH AND DEVELOPMENT

monitors vibration levels and investigates the patterns

Answer explanation

VIBRATION ANALYSIS

What type of vibration occurs when the particles of a shaft or disc move back and forth perpendicular to the shaft axis?

• Longitudinal vibration

• Transverse vibration

• Torsional vibration

• Forced vibration