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Case Studies

Design Assessment of a Train Bearing Housing

Finite Element Analysis of a Train Bearing Housing

An assessment of a bearing housing for use on a rail vehicle was performed to determine if the design had sufficient strength and an infinite fatigue life. Optimization of the design was undertaken to achieve the required fatigue life.

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Process Industry Equipment Failure

FEA investigation into the failure of processing equipment

Following the failure of the drum head of a Through Air Dryer, resulting in the complete shut-down of a paper mill, Eatec undertook an assessment to determine whether further failures of the assembly were likely.

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Re-Opened Formal Inquiry into the Loss of the MV Derbyshire

Re-Opened Formal Inquiry into the Loss of the MV Derbyshire

Following a detailed underwater survey of the MV Derbyshire, the Formal Inquiry in to the loss of the ship was re-opened, and a number of scenarios leading to the loss of the ship were proposed. Through the Attorney General, Eatec provided analytical support to all parties involved with the Inquiry.

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Noise Reduction on a Diving Support Vessel

Noise reduction on a diving support ship

On the CSO Orelia the accommodation for the crew is directly beneath the main working deck, where operations continue 24 hours per day. Noise transmission into the living spaces was a particular problem, and needed to be addressed as part of a life extension refit.

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Failure of a Quarry Screen

Fatigue failure of a quarry screen

A quarry screen which is used to sort crushed rock started to crack soon after entering service. By measuring the motions of the corners of the screen, it was possible to identify that the first torsional mode of the screen was being excited by the drive mechanism.

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Rubber Property Predictor

Bespoke simulation software for predicting properties of rubber

The stress-strain behaviour of rubber is sensitive to composition and processing, and is difficult to predict. A software tool, based on a neural network, was developed to enable “virtual” testing of possible rubber compounds.

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Seal Reliability Analysis Tool

Bespoke engineering software for measuring seal reliability

The reliability of the bearing seals on drill bits used in the oil and gas industry is fundamental to the life of the bit. A client has a programme of continuous improvement of seal design based on field performance. Performance data needed to be processed such that reliability metrics could be generated and compared.

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Database Application

Bespoke engineering test results database

Large quantities of test results had been obtained over a long period, and were stored using different formats, making searching and processing difficult. A test results database system was developed to archive the data and provide comprehensive search and processing functionality. Using the system, changes to product performance which had previously gone unnoticed were identified.

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Tool for Calculating Rigid Body Modes

Bespoke simulation software for optimising engine mounts

Running machinery can produce unwanted noise and vibration, and flexible mounts are often used to minimize the transmission of forces to surrounding structure. Where a number of mounts are to be used, selecting the mount characteristics and designing the mounting configuration is not a trivial exercise.

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