Mathematical Problems in Engineering / 2013 / Article / Tab 2

Research Article

Transfer Matrix Method for the Determination of the Natural Vibration Characteristics of Realistic Thrusting Launch Vehicle—Part I

Table 2

Natural frequencies (Hz) according to measured values, ANSYS, and TMM of a free-free short Timoshenko aluminum square beam.

ModeMeasured [26]ANSYS [26]TMM

127359.627417.6 (+0.212%)27407.233 (+0.174%)
260862.060882.0 (+0.0328%)60851.321 (+0.0175%)
397609.597734.4 (+0.128%)97796.367 (+0.191%)
4131494131658.0 (+0.124%)132277.502 (+0.595%)