Paper 10: Basic Design—Design for Safety
To consider the basis of incorporating safety and reliability into design, it is necessary to understand the design function. We must think in terms of a complete activity, not one concerned only with the safety of automobiles. This is the narrow, present-day popular aspect of safety. It is equally important that safety and reliability shall be of vital concern whether the article being designed is a can-opener or a battleship; both are for the use of people, who must have neither their lives nor their comforts jeopardized by a careless fundamental approach. Good basic design depends on a sound knowledge of the engineering principles, and a clear picture of all available data and facts about the case being considered. It is essential that design begins by giving engineers training in basic principles, and making quite certain that they are able to get at all the relevant facts and knowledge which gives a background to the correct approach. They must also be freely advised of any new methods which may influence the thinking process. The next important aspect of safety and reliability in design is prediction. Without the ability and knowledge to predict how a part will function in practice, even moderately good design is impossible.