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Momenti d'inerzia di configurazione e loro intervento nella dinamica dei sistemi materiali. - MaRDI portal

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Momenti d'inerzia di configurazione e loro intervento nella dinamica dei sistemi materiali. (Q2588736)

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Momenti d'inerzia di configurazione e loro intervento nella dinamica dei sistemi materiali.
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    Momenti d'inerzia di configurazione e loro intervento nella dinamica dei sistemi materiali. (English)
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    1940
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    Als ``Trägheitsmoment der Konfiguration'' bezeichnet Verf. den Ausdruck \(J=\sum ms^2\), wo \(s\) die Entfernung eines Punktes des Systems von seiner Anfangslage bedeutet. Bezeichnet \(I\) das polare Trägheitsmoment und \(I_0\) seinen Anfangswert, ferner \(H\) die Summe \(\sum m\mathfrak s\cdot \mathfrak r_0\), so gilt die Beziehung \(I=I_0 + J + 2H\). Ferner wird für das bewegte System die Formel \(\frac {1}{2}\,\ddot J = L + 2T\) abgeleitet, wo \(L\) die Leistung aller Kräfte, \(T\) die kinetische Energie bezeichnet, und endlich eine Formel von Cerruti neu aufgestellt: \ \(\frac {1}{2}\,\ddot I = V + 2T\), wo \(V\) das Virial der Kräfte bedeutet. (Ref. benutzt die in Deutschland übliche Bezeichnung: \ \(\mathfrak r\) der Vektor \(OP\), \(\mathfrak r_0\) seine Anfangslage, \(\mathfrak s= \mathfrak r - \mathfrak r_0\), \(s = |\mathfrak s|\).)
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