Initial estimates in digital - image correlation method by a new displacement mode 非常應(yīng)變模式數(shù)字相關(guān)方法的初值估計(jì)
Simulative calculating shows that the ratio of first displacement modes is a better damage indicator 其中又以一階位移振型比的精度為優(yōu)。
The cantilever beam is used to testify the methods by numerical calculation and experimental analyses . a new method of strain curvature mode is proposed , relative to the displacement mode 相對于位移曲率模態(tài),本文提出了應(yīng)變曲率模態(tài)的方法,并對該方法的有效性進(jìn)行了實(shí)驗(yàn)驗(yàn)證。
And then the solutions for displacement mode of scattering wave at far field and scattering cross - section are provided at the interface cavity when it is ellipse and diamond 在求解了界面孔對sh波散射的近場解的基礎(chǔ)上,進(jìn)一步研究了其遠(yuǎn)場特性。給出了界面橢圓孔和方孔的遠(yuǎn)場位移模式和散射截面的解答。
The effectiveness of using the ratio of first displacement modes and the difference between flexibilities in detecting and locating damages , as well as approximately determining the extent of damages is demonstrated 結(jié)果表明一階振型比及柔度差均可用于結(jié)構(gòu)損傷的檢測與定位,并能大致判斷損傷的程度。