(NpT) ensemble are presented.These MD simulations validate the newly proposed constant pressure equations of motion in which a "shell" particle is used to define uniquely the volume of the system [M.J.Uline and D.S.Corti,J.Chem... MJ Uline,DS Corti - 《Journal of Chemical Physics》 被...
A recently proposed method for computer simulations in the isothermal–isobaric (NPT) ensemble, based on Langevin-type equations of motion for the particle coordinates and the "piston" degree of freedom, is rederived by straightforward application of the standard Kramers–Moyal formalism. An ...
A modified and generalized velocity scaling (VS) scheme to integrate equations of motion (EOM) for constant temperature and/or pressure molecular dynamics (MD) simulations in the framework of the leapfrog algorithm is presented. This modified VS scheme (MVS) enables us to integrate EOM with a ...
Dynamics of a single particle in a Paul trap in the presence of the damping force radiation pressurestability/ Paul trapsingle particle dynamicsequations of motionlaser coolingThe motion of a single charged particle in a Paul trap in the ... T Hasegawa,K Uehara - 《Applied Physics B》 被引...
Throughout the upper layer \(D_{\tilde{\eta }}\), Euler’s equations of motion are satisfied for a different predefined constant density \(0<\tilde{\rho }<\rho \); i.e., \((\tilde{u},\tilde{v},\tilde{w})\) and \(\tilde{P}\) satisfy $$\begin{aligned} \begin{aligned} ...
Constant Force Spring Design Equations and Calculator Spring Design Menu A constant-force spring is a spring for which the force it exerts over its range of motion is a constant. That is, it does not obey Hooke's law. Generally constant-force springs are constructed as a rolled ribbon of ...
(4.1.45), (4.1.47), the unknown function in the right-hand integral is the difference between the corrective shear tractions at each end of the cycle, q2*(x)−q1*(x), rather than the contact pressure, p(x). Once we have solved the normal problem, therefore, we can deduce ...
Normally, only low molecular mass real gases at high temperature or low pressure obey the ideal gas equation of state with good accuracy. For real gases with complex molecular structures or real gases approaching their saturated vapor region, more complex equations of state are required. The follow...
Orbital motion of spacecraft under the action of constant-thrust acceleration in the direction perpendicular to the velocity is studied. A spacecraft starting in an initial circular orbit obtains a minimum (perigee) radius along an inbound trajectory. If the thrust is maintained, the spacecraft re...
However, the equations of motion can be incorporated into an animation system to automatically calculate these reactions. This can eliminate considerable tedium—if the animator is willing to relinquish precise control over the motion of some objects. In rigid body simulation, various forces to be ...