Pipe vibration assessment

Pipe failure - Crack in pipe due to vibration

Background Having control over vibration might seem like a daunting task. On one side there are many sources to vibration, ie. pulsation, flow, external forces, machinery. On the other hand, there are many mechanical structures that can be put into motion, ie. internal components, pipes, main structure, valves. When you know that Vibration = Force * … Read more

Support calculator: Calculation of maximum recommended pipe length between supports

Straight pipe with supports

Background A simple support will increase the mechanical stiffness of the pipelines and make it more robust against vibration. This tool is intended to be used as an aid for operational personnel at a process facility for doing a rough estimate of recommended maximum distances between supports. The calculator is not meant to be a … Read more

AVIFF Pipework Vibration Criteria

Pipe failure - Crack in pipe due to vibration

Background Having control over vibration might seem like a daunting task. On one side there are many sources to vibration, ie. pulsation, flow, external forces, machinery.On the other hand, there are many mechanical structures that can be put into motion, ie. internal components, pipes, main structure, valves.When you know that Vibration = Force * Structural … Read more

EFRC Vibration criteria

Horizontal compressor

EFRC (the European Forum for Reciprocating Compressors)  has within their guidelines, defined criterias for vibration assessment of reciprocating compressors. Measurements of vibrations at the main parts of the compressor individually may only give a rough indication of the stress levels. In order to enable a more holistic and reliable vibration assessment of the compressor, you … Read more

Vibration problems?

Resonance

Vibrations may be triggered from a variety of sources. When vibrations coincidently match the eigenfrequencies of a structure, resonance occure which can end up in catastrophic result. Understanding and controlling this amplification factor is the key to a safe and healthy process plant. A simple clamp on damper can do the job of reducing over 90% … Read more