Vibration and noise measurements in sea trials
Vibration and noise measurement in sea trials is a key procedure in the shipbuilding industry to ensure the correct operation of vessels and to comply with safety and comfort regulations. This analysis makes it possible to evaluate the impact of mechanical and acoustic vibrations on the structure of vessels, to detect possible failures in propulsion systems and to optimize the operating efficiency of the machinery on board.
At Preditec, we have state-of-the-art equipment and highly qualified personnel to perform accurate vibration and noise measurements on vessels. Our services range from the generation of measurement protocols to the detailed analysis of mechanical and structural systems, ensuring a comprehensive diagnosis in sea trials.
Preditec’s services for vibration and noise measurement in sea trials
Noise and vibration measurements on roofs
- Generation of measurement protocols according to standards and technical specifications.
- Vibration measurements on decks, accommodation areas, control and machine rooms.
- Evaluation of noise levels and generation of vibration and sound maps.
- Diagnosis and primary identification of vibration and noise sources.
Measurement and evaluation of vibrations in machinery
- Application of measurement protocols according to naval sector regulations.
- Measurement and analysis of vibrations in main drive units.
- Evaluation of bending vibrations and orbits on shaft lines.
- Vibration analysis in auxiliary systems and critical machinery.
- Detailed diagnostics and recommendations for performance optimization.
Torque and power measurement on shaft lines
- Torque, RPM and power recording on drive shaft lines and generator systems.
- Official sea trials for engine tuning, propulsion and surveys.
- Obtaining power-RPM and power-speed curves for the optimization of the propulsion system.
- Use of digital wireless technology for strain gage measurements.
Torsional vibration analysis
- Evaluation of torsional vibrations in shaft lines of the propulsion system and auxiliary generation.
- Application of LASER techniques for non-invasive measurements.
- Obtaining vibration-RPM curves and verification of structural calculations.
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More information about Vibration and noise measurements in sea trials
What is vibration and noise measurement in sea trials?
Vibration and noise measurement in sea trials consists of the evaluation of vibration and sound levels generated by the machinery and structure of a vessel under operational conditions. It is performed by means of specialized sensors and analysis equipment that record key data on the mechanical and acoustic behavior of the ship, allowing:
- Detect problems in propulsion and auxiliary systems.
- Evaluate acoustic comfort in crew and passenger areas.
- Identify imbalances and misalignments in machinery.
- Comply with international noise and vibration regulations in the naval sector.
These tests are essential in the construction phase of new vessels and in maintenance audits for vessels in operation.
Benefits of vibration and noise analysis on vessels
Optimization of structural and mechanical performance
- Allows problems to be identified before they lead to serious failures.
- Reduces the impact of vibrations on the ship’s structure.
- Facilitates adjustments and improvements in the design of vessels.
Noise impact reduction and regulatory compliance
- Ensures that the vessel complies with the noise limits established by international regulations.
- Minimizes noise pollution in ports and navigation areas.
- Improves crew and passenger comfort in living areas.
Increased safety and operational efficiency
- Reduces the risk of mechanical failure through early detection of anomalies.
- Optimizes the performance of propulsion and auxiliary systems.
- Reduces corrective maintenance costs by preventing serious failures.
Methods and tools used in the measurement of vibration and noise at sea.
Vibration monitoring equipment
- Piezoelectric vibration sensors and triaxial accelerometers.
- Spectrum analyzers for signal processing.
- Specialized software for real-time data evaluation.
Noise measurement on vessels
- High sensitivity microphones for capturing noise levels.
- Acoustic data acquisition systems with digital processing.
- Generation of noise maps for the identification of noise sources.
Structural analysis techniques
- Vibration simulation with structural modeling software.
- Comparison of data with international standards.
- Machine learning algorithms for failure pattern detection.
Vibration and noise measurement applications in sea trials
Vibration control on cargo ships and cruise ships
- Evaluation of vibrations in large structures.
- Identification of problems in propulsion systems and generators.
- Noise analysis in passenger and crew areas.
Acoustic diagnostics on high-speed vessels
- Analysis of aerodynamic and acoustic impacts on hull and engines.
- Design optimization to reduce noise levels during navigation.
- Measurement of vibrations in stabilization and control systems.
Evaluation of structural noise on offshore platforms
- Measurement of vibrations in fixed and mobile structures.
- Analysis of the impact of waves and weather conditions on the stability of the platform.
- Implementation of continuous monitoring systems for vibration control.
