To avoid the problems of the classical interference imaging spectrometer,such as poor stabilization,and intractable interference fringes,a novel polarization interference imaging spectrometer based on a new adjustable lateral displacement Savart polariscope is developed.

Exact calculation of the optical path difference and lateral displacement of modified large optical path difference Sagnac interferometer in full view field used in upper atmospheric wind field measurement;

The shearing principle of Savart polariscope in the static polarization interference imaging spectrometer (SPIIS) is presented and the exact expression of the lateral displacement and optical path difference (OPD) are deduced by ray-tracing method and the notion of ray index at random incidence angle.

The shearing principle of modified Savart polariscope in the static large field of view polarization imaging spectrometer (SLPIIS) is presented and the exact expression of the lateral displacement and optical path difference are deduced.

Stability analysis by means of finite element method for the composite material revolution shell and the effect analysis of the transverse shear deformation;

The problem of nonlinear dynamic buckling of symmetrically laminated, cylindrically orthotropic truncated shells including transverse shear has been studied.

The linear and geometric nonlinear buckling load including transverse shear deformation are calculated by Timoshenko first-order shear deformation theory and Reddy higher-order shear deformation theory respectively.

The displacement field ensures the continuity of displacements and transverse shear stresses at each interface and includes the influence of transverse shear deformation on the response of laminates.

According to the three-dimensional virtual work equation, the nonlinear equations of equilibrium that include the effects of transverse shearing a(?)e derived for thick rectangular plates on Winkler foundation.