The node Free is a boundary condition that allows all boundaries to move freely without a constraint or load. The node Initial Values is used for specifying initial displacement and velocity values for a nonlinear or transient analysis (not applicable in this case). The default physics nodes ...
1. After applying bias voltage for the comb drive, I cannot choose the boundaries to fix. It says that the boundaries I chose are not applicable. 2. When I try to compute, there has been an error saying that the mass matrix is zero. I think this may be because of the boundary probl...
comsol模拟步骤之在圆柱体上的涡电流 Solved with COMSOL Multiphysics 4.2a ©2011 C O M S O L 1 | E D D Y C U R R E N T S I N A C Y L I N D E R Eddy Currents in a Cylinder Introduction To help you understand how to create models using the AC/DC Module, ...
However, a number of further enhancements of the new model are conceivable as a follow-up such as additional boundary conditions for water vapour or swelling into free space.下载 Paper_Kroehn_Fromme.pdf - 1.06MB Kröhn_6121_poster.pdf - 2.51MB ...
whereuttis the structural acceleration,nis the surface normal,ptis the total acoustic pressure,qdis the acoustic dipole domain source (if applicable), andFAis the load (force per unit area) experienced by the structure. TheAcoustic-Structure Boundarycoupling can be used to couple a pressure a...
In any rotating magnetic machine, there are two parts: the stator and the rotor ,separated by an air gap enabling the rotor’s rotation. The Rotating Machinery,Magnetic interface uses the moving mesh approach to model this rotation, as the finite element method does not support rotations.
The two parts w it h t he corresponding meshes are always in contact at t he cut boundary. The geometry must include the air region between the magnets. Red represents a possible choice for the cut boundary. By default, t he last step in a geomet ry sequence is to finalize by forming...
there are some small differences in the boundary conditions. There are so-calledLumped Portand Lumped Element boundary conditions, applicable for microwave device modeling, which are solely part of the RF Module. Also keep in mind that only the Wave Optics Module contains the beam envelopes formula...
4 Select Boundary 3 only. Variables 1 1 On the Definitions toolbar, click Local Variables. 2 In the Settings window for Variables, locate the Variables section. 3 In the table, enter the following settings: Name Expression Unit Description F_ac aveop_ac(truss.Nxl) N Axial force, member ...
In COMSOL Multiphysics®, micromechanics-based homogenization is performed using theCell Periodicitynode in theSolid Mechanicsinterface. It has two different boundary conditions,PeriodicandHomogeneous. ThePeriodicboundary condition is applicable to the periodic materials and needs an RUC material subvolume. ...