The motion of a satellite about a rotating triaxial body will be investigated, stressing on the case of slow rotation. The Hamiltonian of the problem will be formed including the zonal harmonic J2 and the leading tesseral harmonics C22 and S22. The small parameter of the problem is the spin rate ( ) of the primary. The solution proceeds through three canonical transformations to eliminate in su...

A global model of a slowly rotating perfect fluid ball in general relativity is presented. To second order in the rotation parameter, the junction surface is an ellipsoidal cylinder. The interior is given by a limiting case of the Wahlquist solution, and the vacuum region is not asymptotically flat. The impossibility of joining an asymptotically flat vacuum region has been shown in a preceding ...

This paper presents the analysis and numerical results of rotation, propagation angle, and attenuation angle upon the waves propagating in the piezoelectric body. Via considering the centripetal and Coriolis accelerations in the piezoelectric equations with respect to a rotating frame of reference, wave velocities and attenuations are derived and plotted graphically. It is demonstrated that rot...

The main result is that at any rate of spin Ω and relative enstrophy Qrel, the unique global energy maximizer for fixed relative enstrophy corresponds to solid-body rotation, w0 Max(Qrel) = √ Qrelψ10 in the direction of Ω. Another solution, the counter-rotating steadystate w0 min(Qrel) = − √ Qrelψ10, is a constrained energy minimum provided the relative enstrophy is small enough, i.e., Qrel < Ω...

The paper contains some inconsistencies and errors, and an undefined quantity, which, however, does not invalidate the final equations for gravitomagnetism. Since in a realistic rotating body (angular velocityω) there arise centrifugal stresses of orderω2, it is inconsistent to incorporate the velocitiesv′ of thefield-generating body up to second order but to treat this body as incoherent matte...

generally, fatigue failure in an element happens at the notch on a surface where the stress level rises because of the stress concentration effect. the present paper investigates the effect of a notch on the fatigue life of the hsla100 (­high strength low alloy) steel which is widely applicable in the marine industry. tensile test was conducted on specimens and mechanical properties were obtain...

Rotating asymmetric electric fields have been applied to control the rotation frequency ~and hence the density! of non-neutral plasmas, which are confined in Penning-type traps and have relaxed close to thermal equilibrium characterized by a global rigid-body rotation. ‘‘Infinite’’ confinement times and density compression were first reported for uncorrelated plasmas of ;10 Mg ions with tempera...

At low pressure, ethylene gas consists of single translating and rotating molecules and behaves as an ideal gas. With decrease of free volume by compression, various rotating supramolecular particles are formed, which require less space for the movement: molecular pairs, bimolecules and oligomolecules. The appearance of a new kind of particles is manifested as a phase transition of the second o...

With the development of highly-deviated well cementing techniques, rotating casing cementing technology has got more and more attention. The rotating casing technique can improve the displacement efficiency of cement paste, and then enhance the quality of well cementation. In the stuck section, the rotating casing can redress the well to make the casing run sequentially. The casing endures shea...