PSI - Issue 83

Victor Rizov et al. / Procedia Structural Integrity 83 (2026) 95–104

97

where D x a 5 and D z a 5 are projections onto axes, x and z , respectively. These projections are found as given below

dt d x 2 dt d z 2

2

a

f





5

D

,

(5)

D x 5

2

2

a

n





5

D

.

(6)

D z 5

2

Fig. 1. Schematic of a frame-like component.

The angular velocity,  , of the planar component is derived by differentiation of Eq. (3), i.e.