Free Vibration Analysis of DWCNTs Using CDM and Rayleigh-Schmidt Based on Nonlocal Euler-Bernoulli Beam Theory

Table 6

Numerical results for clamped-sliding end DWCNTs: in columns 1 and 3, the first two dimensionless fundamental frequencies 𝜆₁ and 𝜆₂, with 𝑐₁₂=0, are reported, while in column 2, the first frequency 𝜆, with 𝑐₁₂=0.0694 TPa, is listed.

𝜂0	𝜆1	𝜆	𝜆2
0	5.593	8.931	10.215
0.1	5.509	8.797	10.062
0.2	5.278	8.428	9.640
0.3	4.949	7.902	9.038
0.4	4.575	7.304	8.355
0.5	4.197	6.702	7.666