RAM analyses are based on a structured, goal- and solution-oriented approach that can be used to process and evaluate the following topics.
This refers to the ability of a system or product to function without failure over a certain period of time. Reliability is often measured in the form of MTTF (Mean Time To Failure) or MTBF (Mean Time Between Failures).
Availability is the measure of how often a system or product is in a functional condition. This depends on reliability and maintainability and is expressed as a percentage.
This refers to the ease and speed with which a system or product can be maintained and repaired. The MTTR (Mean Time To Repair) is often used here.
As a consulting engineering company, we are used to completing our tasks in an organised and structured manner. Tasks such as HAZOP studies or other considerations in plant safety are the inspiration for a practised and consistent approach to the development of RAM analyses. Firstly, the plant is assessed and divided into structured areas. In the next step, the system is converted into a mathematical model.
The mathematical assessment of the system is mainly based on statistical approaches and calculations, such as those used in SIL analyses. The necessary individual statistical data can be estimated from our own databases, from available manufacturer information and – if no specific, validated data can be found – based on experience.
As consulting engineers with a wealth of practical experience, we are used to working between the poles of established facts, practical assumptions and a certain unpredictability of the project. We are skilled at thinking in the necessary level of detail, abstracting where necessary and skilfully drawing the right conclusions.
With the help of a RAM analysis, important and cost-relevant issues are analysed and evaluated – with regard to a subsystem or an entire system. As a result, we receive an overall evaluation and assessment of the system under consideration. Critical individual components are identified and potential for optimisation becomes apparent.
In-line RAM analysis
The early and active integration of RAM analysis in the initial planning phase of a project opens up new design possibilities. This procedure can also be called in-line RAM analysis. By specifically analysing and evaluating the planning documents, we create a sound basis for decision-making at the earliest possible stage. In addition, this process enables early cost optimisation while constantly taking investment and operating costs into account.
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