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Educational applications of photoelastodynamics for solid dynamics and dynamics of structures

Gourinat Y., Pramono A. S.

Machine Graphics and Vision

1999

Vol. 8, No. 4

655-666

This paper presents developments performed on photoelastodynamic bench of ENSICA's Departament of Mechanical Engineering. Classical wave, vibrating, shock and rotating parts theories, were compared with colour pictures of isochromatic lines obtained with rapid camera and urethane resin specimens. For nonlinear shock and large deflection, explicit code LSDYNA has been used. Then, the facility has been used to analyse dynamic work of gears for power transmission, in comparision with numerical computations. These developments have lead to demonstrations now included in engineering general courseware, about stress analysis: theory of elasticity and dynamics of structures. Gear visualization have been included in integrated France--Canada developments concerning dynamics of transmission, as a complement with theoretical models and experimental acoustic analysis of functioning gears.