Force and Momentum
نویسندگان
چکیده
منابع مشابه
Momentum Estimation, Planning and Control for Force-Centric Bipedal Locomotion
The stability of a humanoid robot is ensured by constraining its Center of Pressure (CoP) within its support polygon; using a simplified model such as the Linear Inverted Pendulum Model (LIPM) allows for a linear mapping between Center of Mass (CoM) and CoP motion. This enables the use of linear Model Predictive Control (MPC) methods to generate a CoM trajectory which realizes a desired CoP mot...
متن کاملForce and Momentum in an Evolving Axisymmetric Universe Model
We take an axisymmetric rotating universe model by crossing with a time dependent factor and evaluate its force and momentum in this evolving universe. It is concluded that it behaves exactly like a Friedmann model. We also extend this conclusion to the most general cosmological model.
متن کاملFlow force and torque on submerged bodies in lattice-Boltzmann via momentum exchange
We present a new derivation of the momentum exchange algorithm first introduced by Ladd [12], to compute the flow force and torque on a submerged body. The starting point of our derivation is to consider the time derivative of the total momentum of a virtual fluid system that replaces the submerged body in the real problem. The new derivation gives, in turn, some correction terms to the origina...
متن کاملCorrecting mesh-based force calculations to conserve both energy and momentum in molecular dynamics simulations
The high cost of evaluating forces in molecular dynamics makes it necessary to use approximations. The most effective approximations for nonbonded 2-body interactions, such as particle–particle particle–mesh, particle–mesh Ewald, and multilevel summation, split the potential into a short-range part which is evaluated directly and a long-range part which is interpolated from a mesh. This results...
متن کاملMomentum distribution, vibrational dynamics, and the potential of mean force in ice
Lin Lin,1 Joseph A. Morrone,2,* Roberto Car,1,2,3,† and Michele Parrinello4 1Program in Applied and Computational Mathematics, Princeton University, Princeton, NJ 08544, USA 2Department of Chemistry, Princeton University, Princeton, NJ 08544, USA 3Department of Physics, Princeton University, Princeton, NJ 08544, USA 4Computational Science, Department of Chemistry and Applied Biosciences, Eidgen...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1879
ISSN: 0028-0836,1476-4687
DOI: 10.1038/021108a0