Title :
Influence of Sheet Material Characteristics on the Torsional Free Vibration of Single Lap-Jointed Cantilevered SPR Joints
Author_Institution :
Innovative Manuf. Res. Centre, Kunming Univ. of Sci. & Technol., Kunming, China
Abstract :
The free torsional vibration characteristics of single lap-jointed cantilevered SPR beams are investigated theoretically in this paper using the three dimensional finite element method (FEM). Numerical examples are provided to show the influence on the natural frequencies and natural frequency ratios of these beams caused by variations in the material properties of the sheet materials. It is shown that the torsional natural frequencies of single lap jointed cantilevered SPR beams increases significantly as the Youngpsilas modulus of the sheet materials increases, but only slight changes are encountered for variations of Poissonpsilas ratio. It is also found that the material densities of the sheets have significant effects on the free torsional vibration characteristics of the beams.
Keywords :
Poisson ratio; Young´s modulus; beams (structures); cantilevers; finite element analysis; riveting; sheet materials; torsion; vibrations; 3D finite element method; Poissonpsilas ratio; Youngpsilas modulus; free torsional vibration characteristics; material density; material property; sheet material characteristics; single lap-jointed cantilevered SPR joints; torsional free vibration; torsional natural frequency; Fatigue; Finite element methods; Frequency; Helium; Manufacturing automation; Materials science and technology; Mechanical factors; Sheet materials; Structural beams; Vibration measurement; Self-piercing riveting; finite element method; natural frequency; sheet material characteristics; torsional free vibration;
Conference_Titel :
Measuring Technology and Mechatronics Automation, 2009. ICMTMA '09. International Conference on
Conference_Location :
Zhangjiajie, Hunan
Print_ISBN :
978-0-7695-3583-8
DOI :
10.1109/ICMTMA.2009.383
