4097978012

4097978012 - ME4214 Design for Product Safety Modeling...

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1 ME4214 Design for Product Safety Modeling System Failures Part I - Functional Modeling Dr. David Yuen Department of Mechanical Engineering The Hong Kong Polytechnic University 2 Functional Modeling 3 Recall that… The reliability of a product (system) is the probability that the product (system) will perform its intended function for a specified time period when operating under normal (or stated) environmental conditions. 4 Therefore… • It is important to understand the function and sub-functions of a product. • It is helpful to represent a product or a system in terms of its functional components instead of physical components. – E.g. amplifier, speaker, tuner sub-systems of a Hi-Fi system instead of the transformer, ICs and chassis.
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Functional Modeling • Enables understanding of what the product is supposed to do. • Function: flow of energy, material & info or change of state. Function
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4097978012 - ME4214 Design for Product Safety Modeling...

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