Downloaded from https://www.everyspec.com CHPTER 2 GENERAL DESIGN CONSIDERATIONS The A s an examp e of a complex Modern the Service using the item. Everyone othr than j dvice. Cuitainly, its design requires an eq- the customer is considered an outsider beesmue neerig knowledep to handl the forces for his prime intrest is not to uns the produt. armin end functioning in the environment However, many outsiders have med. sininesst within which the fun operete Beyond this contributions through their whuim and umdw- knowledp, the designer must be famnliar with standing of someone ese's need. the general feco. that apply to fuze dsip.
A fuze requirement is usually originated by Tis chapter dIscume thes 8neral consider- the Combat Arms and sent to the prope sup- tions. plying agency in the Defens Department. The request pinpoints exactly what is required but is 2-1 PHILOSOPHY OF DESIGN normally most vague about how it is to be ac- complished. For example, a munition may be 2-1.1 GENERAL needed to inflict certain damage on an aircraft. tiLimiting values of environmental conditions Although the Job of d a fuze i not a may be stated, such as launching site and tazlet simple one, it should not be considered over. position. There will be a date on which the item whelming. In the following pea, the" fuze is to be available.
Th, may be alL The supplying characteristics of specific munitions as well as agency must now decide how this request can be formulas ae given with hints for designmg the satisfied by Government installations or indus. undo& functioning, and explosive components. trial contractors. The length of time availble Therein lies one of the methods for solving a will help to decide whether an existing device complex problem: break it down into separate," will be modified or whether a new dew will workable parts. To be sur, ther are many areas be developed.
The final product may be a guided where precise formulas have not yet been de- miasile, a rocket, or a projectile with an impact, veloped and many that will never lend them- time, or proximity fue. There may be a shige selves to precise solutions. Proportioning a given approach or a series of competitive designs. space to contain the various fuse components, When an outsicer originates a new device, on for example, defies exact calculations known the other hand, the sequence is somewhat differ. today. In solving such problems, designers rely ent even though the end result may be the seem upon past experience and judgment or re- An individual person or group will express an posted testing.
In some ca it may be neces- idea for a specific device the performace of sary to develop new matcrials, processes, or which is claimed to be or is actually known. For methods. It is best to keep in mind all aspects example, an inventor conceives a new tim fuse of the problem, for judgment can be sound only that will operate in a certain way. In fact, the when based on a firm sp of all pertinent facts. conception of ideas is one job of the fue do. Once the fu has been developed, it can signer because, in a sense, fuze dee is oq - benefit from efforts of production and value ized invention. The ideas should be communi- engineering.
It is impotant that this effort be cated to the supplying agency and perhaps to coordinated with the desge so that desg the Combat Arms. If they seem to here merit, characteristics we not compromised arbitrarily. a feasibility study will be made, and if the re. sults bhre favorable, a development progrm may 2.1.2 ORIGIN OF A FUZE UPECIFICATION be initiated. Note that a new Invento has the best chance of being used when a specific need For any product, the requirement for an item for it can be demonstrated. In fact, many new is created when the customer feels the need. weapons have been developed on the basis of In the Department of Defense, the customer is brilliant ideas. 2-1 I