tadd twist test - slidergrid - grid of elastic sliders on a frictional surface | |
git clone git://src.adamsgaard.dk/slidergrid | |
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--- | |
commit 476c2046fbb6ac2eef3d7a24403db6918e665dde | |
parent 399bec23e552877fa5063f68fed06706d4d109eb | |
Author: Anders Damsgaard Christensen <[email protected]> | |
Date: Tue, 19 Apr 2016 16:08:17 -0700 | |
add twist test | |
Diffstat: | |
A tests/elasticity/twist.c | 48 +++++++++++++++++++++++++++++… | |
1 file changed, 48 insertions(+), 0 deletions(-) | |
--- | |
diff --git a/tests/elasticity/twist.c b/tests/elasticity/twist.c | |
t@@ -0,0 +1,48 @@ | |
+#include "../../slidergrid/simulation.h" | |
+#include "../../slidergrid/grid.h" | |
+#include "../../slidergrid/slider.h" | |
+ | |
+#include <stdio.h> | |
+ | |
+// test a regular, 2d, orthogonal grid of sliders | |
+simulation setup_simulation() | |
+{ | |
+ // create empty simulation structure with default values | |
+ simulation sim = create_simulation(); | |
+ sim.id = "twist"; | |
+ | |
+ // initialize grid of sliders | |
+ //int nx = 20; | |
+ int nx = 2; | |
+ int ny = 1; | |
+ int nz = 1; | |
+ sim.N = nx*ny*nz; | |
+ sim.sliders = create_regular_slider_grid(nx, ny, nz, 1.0, 1.0, 1.0); | |
+ | |
+ sim.bond_length_limit = 1.5; | |
+ | |
+ // set slider masses and moments of inertia | |
+ int i; | |
+ for (i=0; i<sim.N; i++) { | |
+ | |
+ // set default values | |
+ initialize_slider_values(&sim.sliders[i]); | |
+ | |
+ // set custom values for certain parameters | |
+ sim.sliders[i].mass = 10.0; | |
+ sim.sliders[i].moment_of_inertia = 1.0e3; | |
+ sim.sliders[i].bond_parallel_kv_stiffness = 1.0e4; | |
+ sim.sliders[i].bond_shear_kv_stiffness = 1.0e5; | |
+ sim.sliders[i].bond_twist_kv_stiffness = 1.0e5; | |
+ } | |
+ | |
+ sim.sliders[0].angvel.x = 1.0e1; | |
+ | |
+ // set temporal parameters | |
+ //sim.time_end = 100.0; | |
+ //sim.file_interval = 1.0; | |
+ sim.time_end = 1.0; | |
+ sim.file_interval = 1.0e-3; | |
+ | |
+ return sim; | |
+} |