Project Type: Design Analysis Service (Remote)
Engineering Discipline: Mechanical
This was a repeat project following on from the successful assistance given by RMA in a 2017 project. The remit was to assist with material selection and design modifications that could enhance the wear resistance and fatigue life of a die plate used in the extrusion of china clay.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
This project required a site visit to inspect and assess vehicular damage to a roof structure. A structural assessment led to recommendations on how the damage might best be rectified.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
This was the third project from ESK involving a balustrade structure. This time a corrugated aluminium sheet has been used and the full composite structure needed to be modeled.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
RMA performed finite element analyses and fatigue assessments of two hinged lamp columns destined for the motorway system in the south-west of the UK.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Mechanical
RMA performed a finite element analysis of a component and provided guidance on design modifications. Details of this project are covered by a Non-Disclosure Agreement.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Mechanical
RMA undertook a structural assessment and fatigue assessment of a coupling for a pair of auger shafts that had been failing due to fatigue. RMA developed a modified design that should now provide an infinite operating life.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
RMA undertook a structural assessment using finite elements and Eurocode 9 for fatigue of a repair made to an overhead crane after the development of a fatigue crack.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
RMA performed a ULS calculation for a reinforced concrete slab using LimitState:SLAB and BS8110.
This is currently an ongoing dispute and the details are constrained by a Non-Disclosure Agreement. However, it is an illustration of how Angus can act as an independent Technical Expert, in this case in the strength of RC Slabs.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
RMA undertook non-linear structural analyses of the clamp under six load cases to determine the strength of the clamp.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
XTA engaged RMA to perform a finite element analysis and structural assessment of a dual use, injection moulded polypropylene chair.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
Angus Ramsay was engaged under CPR(35) as a party appointed expert in a multi-track arbitration case with a disputed value of over $100m. He acted as an expert witness during the hearing presenting evidence and being cross-examined on the structural integrity of an industrial rotating dryer drum.
The Tribunal accepted Angus's opinion and found in favour of HKA's client. This was a landmark case for Angus since his technical evidence and testimony won the day against a significantly larger organisation employed by the other side.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
RMA were engaged after the client's structural engineer was unable to sign-off on the strength of a thin perforated aluminium balustrade. The project was interesting because it required the use of large displacement theory and an elastic, perfectly-plastic material model in order to demonstrate compliance with Eurocode EC9 for aluminium structures.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Mechanical/Structural
RMA undertook the structural analysis and assessment of a scissor lift which was designed to the European Machinery Directive and carried a CE marking.
This project remains under an NDA and is currently in abeyance as criminal proceedings might eventually be pursued. Nonetheless, an interesting project has been undertaken involving both static and dynamic analysis of a structural mechanism. The project is of further interest since it uses conventional hand-calculations as a way of verifying more detailed finite element results.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
This is the third major project RMA have undertaken for Nirvana Engineering and involved the seismic assessment of a vertically oriented battery rack.
Project Type: Technical Expert
Engineering Discipline: Mechanical
Angus Ramsay provided Technical Expert services to an HKA client in preparation for Arbitration on the implications of an undocumented material change to a component in a large industrial machine. The case was settled out of court.
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
Case Study: Seismic Assessment of a Structure to EC3
"This is the second major project for which we have engaged Ramsay Maunder Associates. Both instances have involved the structural verification of seismic rated battery racks supporting essential supplies batteries. In both cases we have found their professional attitude and diligence exemplary. From the initial modelling through to reporting and follow up technical queries their work was second to none. I would not hesitate to recommend their services to anyone seeking such services."
Russell Shaw, Managing Director,
Nirvana Engineering (Stafford) Ltd
Project Type: Design Analysis Service
Engineering Discipline: Mechanical
John Harvey are developing a new 700 litre water tank for the watering of pigs. The tank is made from plastic and needs to be carefully designed to avoid excessive bulging from the hydrostatic loading. RMA have been employed to assess the tank design and advise on the required wall thickness.
Project Type: Design Analysis Service
Engineering Discipline: Mechanical
RMA are assisting char.gy in the structural assessment of a range of lamp post columns onto which the company are mounting their electric vehicle charging device.
Project Type: Design Analysis Service
Engineering Discipline: Mechanical
Angus Ramsay undertook an elastic and plastic finite element analysis for Hawkins to assist them in the understanding of the stresses induced in a mechanical component and to predict the initiation of plastic failure.
Project Type: Technical Expert
Engineering Discipline: Mechanical
Angus Ramsay, technical expert for HKA, provided technical advice to one of HKA's clients in the assessment and rectification of excessive vibrations of a twin stack installation resulting from the aeroelastic phenomena of vortex induced vibrations and galloping.
Project Type: Design Analysis Service
Engineering Discipline: Mechanical
Case Study: Design/Analysis of a Pair of Pulley Wheels
Testimonial: Matthew Gee, Design Engineer, Stenner Ltd
Stenner manufacture industrial bandsaws for the commercial timber industry. RMA were employed to assist in the design and analysis of the main pulleys for an upgraded machine running at a higher speed. The work involved finite element analysis to determine the elastic stresses around stress concentration features in order to make a fatigue life assessment. Additional analyses were conducted to confirm the burst speed and the natural frequencies of the pulleys.
Project Type: Failure Analysis
Engineering Discipline: Mechanical
RMA assisted Peter Brotherhood in the finite element analysis of a steam turbine component to aid understanding of a structural failure. Amongst others, this work led to a realisation that the ASME coefficients of thermal expansion are not listed to an adequate precision for useful engineering calculations. RMA has since taken this issue up with ASME and they are preparing a revision to the code to offer the engineer higher precision in this data.
Project Type: Failure Analysis
Engineering Discipline: Mechanical
Case Study: Fatigue Assessment of a Machine Component
RMA worked with Sibelco on a failure analysis problem in the understanding of premature component failure in a clay processing machine at their Newton Abbot site. The analysis work undertaken by RMA revealed a likely reason for the fatigue failure and design modifications to the component have been made.
Project Type: Design Analysis Service
Engineering Discipline: Mechanical
Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
Case Study: Seismic Assessment of a Structure to EC3
Testimonial: Russell Shaw, Managing Director, Nirvana Engineering (Stafford) Ltd
Nirvana Engineering designs and manufactures steel structures used in the reserve power industry. Such structures often need to be seismically qualified to ensure that they remain functional in the event of an earthquake. RMA recently conducted such an assessment of two steel structures for Nirvana Engineering. These were analysed using both the Equivalent Static and the Response Spectrum methods in the ANSYS finite element system (ANSYS) and assessed according to the Limit State Design code EC3.
Project Type: Design Analysis Service (On-Site)
Engineering Discipline: Structural
RMA supplied a Security Cleared engineer to provide on-site consultancy at SCX for the structural analysis of a static crane for the AWE Mensa project. The project, which involved static and seismic loading, was the first FEA work undertaken at SCX and detailed verification work was therefore undertaken and a full technical report provided to the client.
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Project Type: Design Analysis Service (Remote)
Engineering Discipline: Mechanical
RMA undertook a remote design/analysis project with Cold Harbour Marine involving the checking of pressure components of an Inert Gas Generator to PD5500 using the Finglow software.
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Project Type: Commercial Engineering Authorship
Engineering Discipline: Mechanical & Structural
Angus Ramsay, Engineering Director at RMA acts as an Independent Technical Editor to the NAFEMS Benchmark Challenge initiative.
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Project Type: Design Analysis Service (On-Site)
Engineering Discipline: Structural
RMA provided a Security Cleared, Responsible Engineer (RE3) to work with AMEC on the delivery of consistent and verified finite element models of structural engineering designs for AWE's MENSA Project. The consultant also acted as a mentor to members of AMEC's analysis team.
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Project Type: Design Analysis Service (On-Site)
Engineering Discipline: Structural
RMA provided a Security Cleared engineering consultant to work with Babcock on the verification of finite element models of designs being prepared by Jacobs, Babcock Nuclear Services and Rolls-Royce for a new nuclear submarine dry dock defuelling facility to be build at Devonport Dockyard, Plymouth.
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Project Type: Design Analysis Service (Remote)
Engineering Discipline: Structural
Case Study: Assessment of a Pair of Reinforced Concrete Roof Slabs
RMA undertook a pro bono consultancy project for the limit analysis of a pair of reinforced concrete roof slabs. The yield-line technique together with geometric optimisation and the results were verified using the lower-bound approach in RMA's software EFE.
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Project Type: Mentoring, Training & Education
Engineering Discipline: Structural
RMA was involved in teaching and supervision of civil engineering undergraduate and MSc students in the final year projects which often made use of the yield-line method in EFE.
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Project Type: Commercial Research & Development
Engineering Discipline: Structural
RMA assisted OBVIS to conduct finite element analyses of a masonry arch to investigate the way load is diffused through the fill to the extrados of the arch. This work used the equilibrium membrane element in EFE.
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