evolution equation of viscoelastic medium and exact solutions for generalized thermodynamic forces 粘彈性體發(fā)展方程中關(guān)于熱力學(xué)廣義力精確解
exact solutions of evolution equation for generalized thermodynamic coordinates of viscoelastic medium 粘彈性體發(fā)展方程關(guān)于熱力學(xué)廣義坐標(biāo)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(zhì)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(fā)生連續(xù)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(zhì)的粘彈性介質(zhì)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(shù)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(dǎo)了常q粘彈介質(zhì)中地震波場的運動方程和波動方程,并進行了地震波場數(shù)值正演模擬,模擬結(jié)果達到了其它模擬方法同樣的效果。