Differences

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--- doc:user:integration:scheme:dynimpl [2016/02/04 10:09] – [Damped Alpha-Generalized family] papeleux
+++ doc:user:integration:scheme:dynimpl [2017/06/16 10:27] – papeleux
@@ Line 84: / Line 84: @@
 $$\boldsymbol{C} =  a_m \boldsymbol{M} + a_k \boldsymbol{K}$$
-The modal damping factor corresponding to each eigen pulsation $\omega_{0r}$:
+The modal damping factor corresponding to each eigen pulsation $\omega_{0r} = 2 \pi \phi$:
-$$\epsilon_r=\frac{1}{2}(a_m \omega_{0r} + \frac{a_k}{\omega_{0r}} )$$
+$$\epsilon_r=\frac{1}{2}(a_k \omega_{0r} + \frac{a_m}{\omega_{0r}} )$$
 telling us that the mass damping factor $a_m$ will induice damping on lowest eigen frequencies and that the stiff damping factor $a_k$ will induce damping on the higher eigen frequencies.
@@ Line 103: / Line 103: @@
       * DMUPERSTAGE : Damping matrix computed at each stage change
       * DMUPERSTEP : Damping matrix computed at the beginning of each time step (base on previous equilibrated solution to avoid need of stiffness computation)
-    * Mass Damping Factor and Stiffness Damping Factor are defined though the [[doc:user:elements:volumes:volumeelement?&#parameters|element properties]] (''DAMPSTIFF'',''DAMPMASS'')
+    * Mass Damping Factor and Stiffness Damping Factor are defined though the [[doc:user:elements:volumes:volumeelement?&#parameters|element properties]] (''DAMPSTIFF'',''DAMPMASS''). Parameters can depend of time.
 ==== Generalized Midpoint Rule ====
@@ Line 229: / Line 229: @@
 <code>
-ti = AlphaGeneralizedIntegration(metafor)
+ti = AlphaGeneralizedTimeIntegration(metafor)
 ti.setAlphaM(_AlphaM)
 ti.setAlphaF(_AlphaF)