Based on these analyses,a new formula to calculate dynamic stress intensity factor is derived,which takes account of the effects of impact velocity,rotator inertia and shear deformation.

The effects of shear deformation, longitudinal anc rotary inertia of face plates,and extension and rotary inertia of the core layer have been considered. Hence the equation may be used to study the vibration of short sandwich beam and higher order modes.

In this paper, the non dimensional axisymmetrical motion equations of orthotropic circular cylindrical shell under impact torque by considering the shear deformation and the rotational inertia effect are given.

The Hamilton variation principle is extended to derive the equations of motion, taking account of the shear deformation and the rotational inertia of the shells and the stiffeners. And a semi-analytic finite difference method is used to solve this problem.

The influence of material parameters on the deflection is investigated. The dynamical response of the viscoelastic Timoshenko beam subjected to a periodic excitation is studied by means of mode shape functions. And the effect of both transverse shear and rotational inertia on the vibration of the beam is discussed.

The discriminant of synchronous rotation of piston ring with piston was put forward. Moreover,the analytical model about the opposite rotation of the piston ring was established,by taking into account various forces including combustion gas pressure,liquid friction,and reciprocating inertia force,and various moments including rotational friction,rotational inertia,and gas friction moment.

Analytical expressions for dynamic characteristic and general expressions for random responses of thick cylindrical shells are given. The present work contains,in addition to the usual membrane and bending effects,also the influences of rotatory inertia,transverse shear deformation and transverse normal extrusion. The numerical results are given herein.

Besides the usual membrane stresses and stress couples the equation also contains additional terms reflecting the influences of transverse shear deformation, rotatory inertia and transverse extrusion.

In this paper, the finite deformation equations of motion for a cylindrical shell, which is subjected to normal concentrated loading at arbitrary position, are derived by using the minimum principle in dynamics of elastic plastic continua at finite deformation, the effects of membrane force and the effects of rotatory inertia are reflected in the equation.

Based on the constitutive equations and integral-type constitutive model of viscoelastic solids, with damage motion differential equations are presented for a general thick viscoelastic plate with damage, including effects of shear deformation, extrusion deformation and rotatory inertia.

Moreover, the rotary inertia can also be identified by the additive mass.

Moreover, all the variables including the rotary inertia of the servo system were identified by the additive mass.

The dynamical behavior of the plate is described in terms of the Uflyand-Mindlin wave equations taking into account the rotary inertia and the transverse shear deformations.

The system equations have been derived based on higher order shear deformation theory and also include rotary inertia effects.

The dynamic characteristics of the system are studied through numerical simulations under twos cases: the rotary inertia of the hub is much larger than, and is close to, that of the flexible beam.

Aiming at a 300 MW turbo-generator model, the sensitivity of natural torsional frequencies and modes of torsional vibration (TV) to the rotational inertia and stiffness of the turbo-generator were analyzed.

Calculation results show that the variation of the rotational inertia or stiffness either of the rotor system as a whole (namely shafting) or only locally may both remarkably influence the TV characteristics of the rotor.

The factors are transverse shear deformation, initial imperfections, longitudinal and rotational inertia, and ply-angle of the fiber, etc.

And the effect of both transverse shear and rotational inertia on the vibration of the beam is discussed.

The effect of the skew angle of the underlying grid structure is also explored, as are mathematical refinements of the modelling of the beam elements and the rotational inertia of the added masses.

All effects of rotatory inertia and shear deformation are taken into account in the formulation.

This paper investigates the acoustic scale effects for the similitude model, which are influenced by loss factor, shear and rotatory inertia.

Free vibrations of arches with inclusion of axial extension, shear deformation and rotatory inertia in Cartesian coordinates

The formulation includes the effects of axial extension, shear deformation, and rotatory inertia.

These conclusions can clso be applied to structures such as beams, plates and shells in which the shear deformation and rotatory inertia are considered.

In this paper, the general equations of motion for deflections and rotations of thick elastic shells with arbitrary shape are derived by using the variational principle. Besides the usual membrane stresses and stress couples the equation also contains additional terms reflecting the influences of transverse shear deformation, rotatory inertia and transverse extrusion. It can be Shown that the equation for thick Shells deduced by V.Z. Vlasov, the equation for thick cylindrical shells by I. Mirsky and G. Herrmann...

In this paper, the general equations of motion for deflections and rotations of thick elastic shells with arbitrary shape are derived by using the variational principle. Besides the usual membrane stresses and stress couples the equation also contains additional terms reflecting the influences of transverse shear deformation, rotatory inertia and transverse extrusion. It can be Shown that the equation for thick Shells deduced by V.Z. Vlasov, the equation for thick cylindrical shells by I. Mirsky and G. Herrmann and the equation for thick plates by R. D. Mindlin are the special cases of the general equation presented herein.

In this paper, a more accurate differential equation of motion of damped sandwich beams has been derived by using the variational method. The effects of shear deformation, longitudinal anc rotary inertia of face plates,and extension and rotary inertia of the core layer have been considered. Hence the equation may be used to study the vibration of short sandwich beam and higher order modes. Comparisons have been made for several approximate theories, and the ranges in which the the theories could been used have...

In this paper, a more accurate differential equation of motion of damped sandwich beams has been derived by using the variational method. The effects of shear deformation, longitudinal anc rotary inertia of face plates,and extension and rotary inertia of the core layer have been considered. Hence the equation may be used to study the vibration of short sandwich beam and higher order modes. Comparisons have been made for several approximate theories, and the ranges in which the the theories could been used have been pointed out.