ROOTCASTLE / ENGINEERING LAB

Failure atlas

Read symptoms, measurements and uncertainty together.

Educational model. Results are not sufficient to diagnose a machine or establish safe operating limits.

Imbalance

An offset between the mass centre and rotation axis creates a centrifugal force that increases with speed squared.

Connected shaft axes differ in angle or offset. Coupling type and thermal behaviour matter.

Loose joints or bearing clearances can create nonlinear contact and impacts.

Response grows when excitation approaches a natural frequency. Damping and stiffness govern the result.

A local defect on a rolling surface can generate impacts as contacts pass it.

Changing tooth-contact stiffness excites gear mesh frequency; damage can modulate that excitation.

Bubbles can form when local liquid pressure drops below vapour pressure; subsequent collapse creates impacts.