diff --git a/pygrt/C_extension/include/grt/common/model.h b/pygrt/C_extension/include/grt/common/model.h
index f22d553..ab966bb 100755
--- a/pygrt/C_extension/include/grt/common/model.h
+++ b/pygrt/C_extension/include/grt/common/model.h
@@ -77,12 +77,12 @@ GRT_MODEL1D * grt_init_mod1d(MYINT n);
 GRT_MODEL1D * grt_copy_mod1d(const GRT_MODEL1D *mod1d1);
 
 /**
- * 根据不同的omega， 更新模型的 \f$ k_a^2, k_b^2 \f$ 参数
+ * 根据不同的 omega， 计算衰减系数，更新弹性模量
  * 
  * @param[in,out]     mod1d     `MODEL1D` 结构体指针
  * @param[in]         omega     复数频率
  */
-void grt_update_mod1d_omega(GRT_MODEL1D *mod1d, MYCOMPLEX omega);
+void grt_attenuate_mod1d(GRT_MODEL1D *mod1d, MYCOMPLEX omega);
 
 /**
  * 根据相速度和层位，计算 iy 层的 (c/vp)^2, (c/vs)^2 以及归一化垂直波数
diff --git a/pygrt/C_extension/src/common/model.c b/pygrt/C_extension/src/common/model.c
index b5b3a15..ca0c014 100755
--- a/pygrt/C_extension/src/common/model.c
+++ b/pygrt/C_extension/src/common/model.c
@@ -145,16 +145,17 @@ GRT_MODEL1D * grt_copy_mod1d(const GRT_MODEL1D *mod1d1){
 }
 
 
-void grt_update_mod1d_omega(GRT_MODEL1D *mod1d, MYCOMPLEX omega){
+void grt_attenuate_mod1d(GRT_MODEL1D *mod1d, MYCOMPLEX omega){
     MYREAL Va0, Vb0;
-    // MYCOMPLEX ka0, kb0;
     MYCOMPLEX atna, atnb;
     for(MYINT i=0; i<mod1d->n; ++i){
         Va0 = mod1d->Va[i];
         Vb0 = mod1d->Vb[i];
 
-        atna = (mod1d->Qainv[i] > 0.0)? grt_attenuation_law(mod1d->Qainv[i], omega) : 1.0;
-        atnb = (mod1d->Qbinv[i] > 0.0)? grt_attenuation_law(mod1d->Qbinv[i], omega) : 1.0;
+        // 圆频率实部为负数表明不考虑模型的 Q 值属性
+        // 在读入模型后需要需要运行一次本函数以填充弹性模量，见 grt_read_mod1d_from_file 函数
+        atna = (creal(omega) >= 0.0 && mod1d->Qainv[i] > 0.0)? grt_attenuation_law(mod1d->Qainv[i], omega) : 1.0;
+        atnb = (creal(omega) >= 0.0 && mod1d->Qbinv[i] > 0.0)? grt_attenuation_law(mod1d->Qbinv[i], omega) : 1.0;
 
         mod1d->atna[i] = atna;
         mod1d->atnb[i] = atnb;
@@ -391,6 +392,9 @@ GRT_MODEL1D * grt_read_mod1d_from_file(const char *command, const char *modelpat
     GRT_SAFE_FREE_PTR(modarr);
     GRT_SAFE_FREE_PTR(line);
     
+    // 填充弹性模量
+    grt_attenuate_mod1d(mod1d, -1);
+
     return mod1d;
 }
 
diff --git a/pygrt/C_extension/src/dynamic/grn.c b/pygrt/C_extension/src/dynamic/grn.c
index 6f4a4a3..074f329 100755
--- a/pygrt/C_extension/src/dynamic/grn.c
+++ b/pygrt/C_extension/src/dynamic/grn.c
@@ -159,7 +159,7 @@ void grt_integ_grn_spec(
     #else 
         local_mod1d = mod1d;
     #endif
-        grt_update_mod1d_omega(local_mod1d, omega);
+        grt_attenuate_mod1d(local_mod1d, omega);
 
         // 是否要输出积分过程文件
         bool needfstats = (statsstr!=NULL && ((grt_findElement_MYINT(statsidxs, nstatsidxs, iw) >= 0) || (grt_findElement_MYINT(statsidxs, nstatsidxs, -1) >= 0)));