Mathematical Problems in Engineering / 2017 / Article / Tab 8

Research Article

The Modified Fourier-Ritz Approach for the Free Vibration of Functionally Graded Cylindrical, Conical, Spherical Panels and Shells of Revolution with General Boundary Condition

Table 8

Comparisons of frequencies (Hz) of the functionally graded spherical shells with different power-law index p.

FFSSCC
Ref [9]Ref [29]PresentRef [9]Ref [29]PresentRef [9]Ref [29]Present

0.60777.60777.61777.60786.87786.84786.84875.72875.58875.57
1771.92771.92771.91827.85827.82827.82910.70910.57910.56
249.8949.8549.89886.90886.85886.88894.67894.60894.65
3133.68133.53133.68881.65881.61881.64889.45889.41889.43
4243.64243.34243.66914.98914.97914.98927.36927.34927.35
50754.66754.66754.66773.02772.99772.99865.53865.40865.40
1748.83748.82748.83812.64812.61812.62899.65899.53899.54
251.6151.5751.61862.47862.42862.46871.46871.41871.44
3137.94137.80137.95858.21858.18858.20868.66868.63868.65
4250.90250.61250.92895.25895.23895.25910.61910.59910.60

0.60777.04777.04777.03767.95767.93767.92873.85873.71873.70
1771.53771.53771.52815.18815.16815.15908.81908.68908.67
249.6449.6049.64887.94887.89887.92893.80893.73893.78
3133.03132.88133.03885.56885.52885.55888.32888.28888.30
4242.47242.16242.48919.44919.43919.44925.77925.75925.76
50753.73753.73753.73749.88749.86749.86862.76862.63862.63
1748.18748.17748.17796.86796.84796.85896.89896.77896.77
251.2951.2551.29864.43864.39864.42870.08870.03870.07
3137.10136.95137.10863.25863.22863.24866.87866.84866.84
4249.38249.09249.42900.65900.63900.64908.16908.14908.16

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