Eatec Ltd

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Where complex structures or loadings are involved, a stress analysis using FEA (finite element analysis) provides a level of accuracy which cannot be achieved through hand calculations.  Eatec specialises in stress analysis using FEA, and has been assisting clients in a range of industries for over 30 years.

Fatigue Analysis (FEA)

Structures are designed to withstand extreme loads, but when subjected to repeated applications of load, they can fail through fatigue. A fatigue analysis can determine whether a component or structure will have the required fatigue life, and identify the locations where cracks will first occur and limit the life.

Welded structures can be particularly prone to fatigue failures. Through fatigue analysis, we can assess the life of welded structures in accordance with international standards (e.g. Eurocode 3 Part 1-9, BS 7608).

Fatigue Analysis (FEA)

Thermal Analysis (FEA)

Thermal analysis can be undertaken to determine:

  • Temperature levels and distributions
  • Heat flow rates and paths
  • Overall heat transfer characteristics

The results from a thermal analysis can be used to determine whether a design meets a particular insulation or conductivity requirement, or to assess peak temperatures against allowable values, or to provide a temperature field which can be used in a stress analysis to determine thermal stresses and distortions.

Thermal Analysis (FEA)

Vibration Analysis (FEA)

The dynamic behaviour of a structure will be important if it is subjected to significant vibration or transient loads.  Eatec has a wealth of experience of performing vibration analysis to calculate the response of structures.

Vibration analysis can be used to determine the following:

  • Natural frequencies and mode shapes
  • Response to sinusoidal (harmonic) vibration
  • Response to transient events
  • Response to random vibration
  • Response to seismic inputs
Vibration Analysis (FEA)

Shock and Impact Analysis (FEA)

Some structures have to be designed to withstand large transient loads. Using FEA techniques, Eatec performs shock and impact analyses to detemine the behaviour of structures subjected to shock/impact type loads.  

These analyses are typically performed to determine:

  • Peak stress levels
  • Peak deflections, velocities or accelerations
  • Forces carried by mounts or connections
Shock and Impact Analysis (FEA)

Vibration Testing and Investigations

Vibration problems are usually caused by large input forces or the excitation of a resonance.  Through its on-site vibration testing service, Eatec is able determine the cause of the problem. 

Based on the results from the vibration testing, or a combination of the measurements and results from finite element analyses, the optimum solution to the problem can be identified.

Vibration Testing and Investigations

Failure Investigations

Failure of a structure can include:

  • Premature fatigue failure
  • Inability to withstand extreme in-service loads
  • Excessive vibration or noise
  • Required level of performance is not achieved

Using its expertise in FEA and testing, Eatec undertakes in-service failure investigations and the identification of the cause and solution to the problem in an efficient manner.

Failure Investigations

Noise and Vibration Measurement

There are many different reasons why it can be necessary to monitor noise and vibration, and include:

  • Ensuring compliance with health & safety requirements in the working environment
  • Assessing comfort levels and other human factors
  • Structural integrity assessments
  • Ensuring compliance with planning requirements or standards
  • Assessing the effects on sensitive equipment and structures

We configure each noise and vibration monitoring exercise to address the particular requirements of the investigation.

Noise and Vibration Measurement

Shock and Impact Testing

Shock and impact testing is used to confirm that structures are capable of withstanding extreme dynamic events which could occur in-service. Many engineering companies require support to assess customer specifications/national or international standards and identify the optimum approach to adopt to confirm that their structure complies with the shock or impact requirements.

We specialise in assisting companies in undertaking shock and impact testing and obtaining test results to check compliance with the design requirements.

Shock and Impact Testing

Noise and Vibration Monitoring and Assessment on Construction Sites

Work on construction and demolition sites creates environmental noise and vibration that can be a nuisance to neighbouring properties.  We support clients involved in construction and demolition with a range of services, including:

  • Preparation of a noise and vibration plan to satisfy Section 61 requirements
  • On-site sampling and assessment of noise and vibration levels
  • Installation and control of semi-permanent noise and vibration monitoring and assessment systems
  • Guidance and advice on how to comply with statutory requirements
Noise and Vibration Monitoring and Assessment on Construction Sites

Noise and Vibration on Ships

High levels of noise and vibration can occur on ships. These conditions can be harmful to the health of the crew, and excessive levels of vibration can lead to premature failure of equipment.

Eatec has extensive experience of assessing noise and vibration on ships, and identifying solutions to problems.

Noise and Vibration on Ships

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