Research Article

Mode Shape Description and Model Updating of Axisymmetric Structures Using Radial Tchebichef Moment Descriptors

Table 3

Angles between the double modes.

Double modesMaximum RTMMaximum RTM angleMaximum RTM repetitionAngle of double modes

(1, 2)R1289.94244.97
(4, 5)R13−90.003−30.00
(6, 7)R2189.99189.99
(8, 9)R14−90.654−22.66
(10, 11)R1589.99518.00
(12, 13)R22−89.942−44.97
(15, 16)R1689.49614.91