principal moments

principal moments

[′prin·sə·pəl ′mō·məns]
(physical chemistry)
The three moments of inertia of a rigid molecule calculated with respect to the principal axes.
References in periodicals archive ?
A combination of commentary and original texts illustrates the principal moments in the friendship between Michel Deguy and Jacques Derrida as an exemplary of the dialogue between poetry and philosophy in the contemporary world.
Assuming that the actuator is axisymmetric and the principal axes of inertia of the upper leg are consistent with the corresponding axes of frame [[??].sup.i], the principal moments of inertia are denoted by [mathematical expression not reproducible], and the following expression can be obtained:
Because the actuator is axisymmetric, the principal moment of inertia [I.sup.i.sub.[??]2[??]2] is equal to [I.sup.i.sub.[??]3[??]3].
The processes of glaciation, followed by ice melting and significant changes of the mean sea level redistribute great amount of water masses between oceans and ice sheets, which lead to changes of the principal moments of inertia.
and Gambis, D.: 2011, Variations of the Earth principal moments of inertia due to glacial cycles for the last 800Ka.
where r is radius of gyration; [L.sub.ef] is effective length of the column, I is principal moments of inertia, A is area of cross section.
Manual spot-welding Shear Axial [F.sub.max] * kN [F.sub.max] * kN 1 9.6 3.8 2 9.4 4.2 3 9.5 4.3 4 9.6 4.6 5 8.6 4.0 6 9.1 4.4 av 9.3 4.2 CV 4.19 6.82 CV is coefficient of variation Table 3 Slenderness characteristics of separate elements Principal moments Nr Area A, of inertia Radius of gyration [mm.sup.2] [I.sub.x] [I.sub.y], [r.sub.x], [r.sub.x], [mm.sup.4] [mm.sup.4] mm mm 1 144 62382 114209 20.81 28.16 2 74 2011 41093 5.21 23.56 Sum 218 100403 155302 21.46 26.69 Nr Slenderness of elements [[lambda].sub.x] [[lambda].sub.y] 1 4.80 3.55 2 19.18 4.24 Sum 4.66 3.75 Table 4 Variations of manual and original spot-welding by FEA simulation Axial Absorbed Nr.
The inertial properties, such as center of mass (CM) location, mass, and principal moments of inertia, of the leg and pelvis segments were computed using the ratio values reported by Chandler and colleagues.
But she does touch on the principal moments in Apuleius' reception from Macrobius to Beroaldo and presents the interesting claim that Fulgentius' allegory of the story of Psyche is based on Neo-Platonic ideas (22-25).

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