Each spring forint p1pnp geometryparticlestv

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Unformatted text preview: ;TV>& X); void Set_Kinematic_Velocities(const T time,ARRAY_VIEW<TV>& V); void Clear_Values_Of_Kinematic_Particles(ARRAY<TV>& array); }; } CS838 Advanced Modeling and Simulation namespace PhysBAM{ template<class T> class SIMULATION_LAYOUT { public: typedef VECTOR<T,3> TV; const STREAM_TYPE template<class T> stream_type; void SIMULATION_LAYOUT<T>::Add_Damping_Forces(const ARRAY_VIEW<TV>& X,const ARRAY_VIEW<TV>& V, const int n; force) // Number of particles in wire mesh ARRAY<TV>& { const T youngs_modulus,damping_coefficient // Elasticity and damping coefficients const T wire_mass,wire_restlength; // Mass and for(int s=1;s<=wire_curve->mesh.elements.m;s++){ length for entire wire ARRAY<T>nt p1,p2;wire_curve->mesh.elements(s).Get(p1,p2); particle), restlength (per each spring) // Mass (per each i mass,restlength; TV X1=X(p1),X2=X(p2); GEOMETRY_PARTICLES<TV> particles; TV V1=V(p1),V2=V(p2); DEFORMABLE_GEOMETRY_COLLECTION<TV> collection; TV normal=(X1-X2).Normalized(); T vrel=TV::Dot_Product(normal,V1-V2); const int number_of_frames; // Total number of frames const TTV f=-damping_coefficient*vrel*normal; interval frame_time; // Frame (snapshot) force(p1)+=f;force(p2)-=f; number (not to exceed 1) const T CFL_number; // CFL } d T } SEGMENTED_CURVE<TV>* wire_curve; FREE_PARTICLES<TV>* wire_particles; f1 = −bnn (v 1 − v 2) SIMULATION_LAYOUT(const STREAM_TYPE stream_type_input); void Initialize(); void Add_Elastic_Forces(const ARRAY_VIEW<TV>& X,ARRAY<TV>& force); void Add_Damping_Forces(const ARRAY_VIEW<TV>& X,const ARRAY_VIEW<TV>& V, ARRAY<TV>& force); void Add_External_Forces(ARRAY<TV>& force); T Maximum_Dt(); void Write_Output(const int frame); void Set_Kinematic_Positions(const T time,ARRAY_VIEW<TV>& X); void Set_Kinematic_Velocities(const T time,ARRAY_VIEW<TV>& V); void Clear_Values_Of_Kinematic_Particles(ARRAY<TV>& array); }; } CS838 Advanced Modeling and Simulation namespace PhysBAM{ template<class T> class SIMULATION_LAYOUT { public: typedef VECTOR<T,3> TV; const STREAM_TYPE stream_type; const int n; // Number of particles in wire mesh const T youngs_modulus,damping_coefficient // Elasticity and damping coefficients template<class T> const T wire_mass,wire_restlength; // Mass and length for entire wire void SIMULATION_LAYOUT<T>::Add_External_Forces(ARRAY<TV>& force) ARRAY<T> mass,restlength; // Mass (per each particle), restlength (per each spring) { for(int p=1;p<=n;p++) GEOMETRY_PARTICLES<TV> particles; force(p)-=TV::Axis_Vector(2)*mass(p)*9.81; DEFORMABLE_GEOMETRY_COLLECTION<TV> collection; } const int number_of_frames; const T frame_time; const T CFL_number; // Total number of frames // Frame (snapshot) interval // CFL number (not to exceed 1) SEGMENTED_CURVE<TV>* wire_curve; FREE_PARTICLES<TV>* wire_particles; SIMULATION_LAYOUT(const STREAM_TYPE stream_type_input); void Initialize(); void Add_Elastic_Forces(c...
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This note was uploaded on 09/04/2012 for the course CS 838 taught by Professor Staff during the Fall '08 term at University of Wisconsin.

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