The Application of Fabricated Construction to Machine Design
| Autor: | F. Koenigsberger |
|---|---|
| Rok vydání: | 1945 |
| Předmět: | |
| Zdroj: | Proceedings of the Institution of Mechanical Engineers. 152:245-274 |
| ISSN: | 2058-1203 0020-3483 |
| DOI: | 10.1243/pime_proc_1945_152_049_02 |
| Popis: | Modern welding equipment and practice have given the machine designer the opportunity of applying fabricated welded construction in an efficient manner. This does not mean that steel fabrications should replace castings everywhere, but that steel should be kept in mind as a material which is available if technical or economic considerations favour its use as an alternative to that of cast iron. The designer of a fabricated steel machine structure has to consider the properties of the material and the problems of the manufacturing process, which are different from those which apply for the generally used cast iron construction. Layout arrangement, and shape of the fabricated construction have to be designed in accordance with the foregoing conditions. In machine structures, stiffness against distortion and freedom from vibrations are usually of major importance as compared with strength. A comparison of strength, stiffness, and freedom from resonance for simple fabricated steel and cast iron structures is given in the form of graphs. The problem of the design of ribs for static and shock load conditions is discussed; and some designs criteria are determined. Some observations on the procedure of stress relieving after fabrication are also included. The author, in addition to setting out the principles governing the design of fabricated structures, gives information on the execution of production drawings, including definite instructions for the most efficient procedure in the fabricating shop. Typical examples of fabricated machine structures are also included. |
| Databáze: | OpenAIRE |
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