CSTI acoustics calculates vibration levels on decks using a number of approaches including SEAM models, Designer-NOISE models, and a CSTI acoustics approach that correlates well with measured data. These levels are then compared with vibration criteria.

For Mustang Engineering, we evaluated vibration levels from machinery according to the NORSOK S-002 criteria on BP Valhall and Hess Stampede offshore platforms.

Low-frequency vibration, in the range of 1 to 80 Hz, can interfere with the ability of workers to perform tasks. The organs of the human body, such as the stomach and heart, are supported inside the body cavity on a suspension system.

The resonance frequencies of these suspension systems are in this frequency range. Whenever a system is excited at its resonance frequency, it responds vigorously. Consequently, organizations such as NORSOK restrict vibrations at these frequencies for tasks involving human workers.

Human Occupancy and Vibration

CSTI acoustics calculates vibration levels on decks using a number of approaches including SEAM models, Designer-NOISE models, and a CSTI acoustics approach that correlates well with measured data. These levels are then compared with vibration criteria.

Low-frequency vibration, in the range of 1 to 80 Hz, can interfere with the ability of workers to perform tasks. The organs of the human body, such as the stomach and heart, are supported inside the body cavity on a suspension system.

The resonance frequencies of these suspension systems are in this frequency range. Whenever a system is excited at its resonance frequency, it responds vigorously. Consequently, organizations such as NORSOK restrict vibrations at these frequencies for tasks involving human workers.