Evolution equation of viscoelastic medium and exact solutions for generalized thermodynamic forces 粘彈性體發展方程中關于熱力學廣義力精確解
Exact solutions of evolution equation for generalized thermodynamic coordinates of viscoelastic medium 粘彈性體發展方程關于熱力學廣義坐標的精確解
In viscoelastic media , the high frequency waves propagate and are damped more quickly than the low frequency ones , so that the shape of the wave will change continuously as it propagates 在粘彈性介質里,頻率高的波相對于頻率低的波而言不僅傳播快,同時也衰減快,這樣在傳播的過程中它的波形發生連續微小的變化。
Any homogeneous viscoelastic medium subjected to one - dimensional tension and compression can be characterized in terms of the phase velocity c ( w ) and the attenuation coefficient deduce the complex modulus and the other equivalent viscoelastic functions 一維的縱向壓縮波在同質的粘彈性介質中傳播時,材料的粘彈性特性主要通過縱向波的傳播速度c ( w )和衰減系數a ( w )兩項來定義。
The paper deduced movement and wave equation of seismic wave field in constant q viscoelastic media using the method of pseudo - spectral , and carried on forward modeling , the modeling result is the same with the one of other modeling ways 摘要本文采用偽譜法推導了常q粘彈介質中地震波場的運動方程和波動方程,并進行了地震波場數值正演模擬,模擬結果達到了其它模擬方法同樣的效果。