Research Article

A Normalized Transfer Matrix Method for the Free Vibration of Stepped Beams: Comparison with Experimental and FE(3D) Methods

Table 4

Validation of the present NTM using 20-span uniform beam with 19 equally spaced concentrated masses in comparison with [6].

MethodComputational time (sec)

NAT [6]3.71776.17168.639248.17
Present NTM3.71776.17168.639213.53
NAT [6]2.38714.77427.161234.67
Present NTM2.38714.77427.161212.14
NAT [6]3.59415.96718.3547140.40
Present NTM3.59415.96718.3547113.47
NAT [6]1.59892.53294.596922.13
Present NTM1.59892.53294.596910.23