Problemi grafici di trazione ferroviaria


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ABSTRACT IN the preface the author tells us that although graphic methods are often used by the general mechanical engineer, they have up to now been neglected by the railway engineer. This


book is intended to show how such methods may be applied to the solution of nearly all problems in connection with the working of trains on railways. In this object the author has well


succeeded, and it may safely be predicted that any reader who has once used graphics irt the very easy and simple manner represented in this-book will never again have recourse to analytical


methods. Indeed, there are cases where analysis becomes so complicated that its use by a busy engineer, even if he has the required mathematical ability, is out of the question; as an


example may be cited the acceleration diagram of a train drawn by a steam locomotive. Tractive effort and resistance vary in a very complicated manner with the speed, and this, again, being


the time integral of acceleration, which in turn depends on the difference between tractive effort and resistance, it is easy to see that a purely analytical treatment leads to almost


hopelessly involved formulæ. Yet the author is able to solve this and many other problems by his graphics in a comparatively easy way, and with a degree of accuracy quite sufficient for


practical purposes. Problemi grafici di Trazione Ferroviaria. By P. Oppizzi. Pp. viii + 2O4. (Milan: Ulrico Hoepli, 1909.) Price 3.50 lire. Access through your institution Buy or subscribe


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calculated during checkout ADDITIONAL ACCESS OPTIONS: * Log in * Learn about institutional subscriptions * Read our FAQs * Contact customer support Authors * GISBERT KAPP View author


publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE KAPP, G. _Problemi grafici di


Trazione Ferroviaria_ . _Nature_ 81, 303 (1909). https://doi.org/10.1038/081303a0 Download citation * Issue Date: 09 September 1909 * DOI: https://doi.org/10.1038/081303a0 SHARE THIS ARTICLE


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