Vibration Introduction

 After this lesson, you will be able to define basic terms and measurement units associated with vibration. You will also be able to describe the relationship between a machine’s operating speed and vibration problems. • Explain the relationship between excitation and vibration • Describe the time and frequency domains of vibration measurement • Describe the three basic measurements for vibration amplitude: – Displacement – Velocity – Acceleration • Identify the mathematical relationship between those three attributes and give reasons for measuring each • Describe the relationship between a machine’s rotational speed expressed in revolutions per minute (rpm) and cycles per minute (cpm) • Explain the relationship between machine rpm and orders