| 1. | Initial estimates in digital - image correlation method by a new displacement mode
非常应变模式数字相关方法的初值估计 |
| 2. | Simulative calculating shows that the ratio of first displacement modes is a better damage indicator
其中又以一阶位移振型比的精度为优。 |
| 3. | 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
相对于位移曲率模态，本文提出了应变曲率模态的方法，并对该方法的有效性进行了实验验证。 |
| 4. | 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
在求解了界面孔对sh波散射的近场解的基础上，进一步研究了其远场特性。给出了界面椭圆孔和方孔的远场位移模式和散射截面的解答。 |
| 5. | 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
结果表明一阶振型比及柔度差均可用于结构损伤的检测与定位，并能大致判断损伤的程度。 |
| 6. | Conversion formula between the strain mode and displacement mode is induced for the cantilever beam . present residual force method is improved and the new method is better than the old one for the engineering practice
推导出位移模态和应变模态的换算公式，改进了现有的残余力向量法，使之在工程实际应用中有更现实的意义。 |
| 7. | Using rectangular plates with four simply supported edges as analytical models , their mode shapes and frequencies are calculated by numerical method then the ratio of displacement modes and the difference between flexibilities of the intact plate and the damaged plates are derived and used to identify damages
摘要以一四边简支矩形弹性薄板为研究物件，通过数值计算得到板损伤前后的多阶模态，进而利用板损伤前后的位移振型比及柔度差来进行板的损伤识别研究。 |
| 8. | In this paper ( chapter 4 ) , curvature mode method is adopted to the calculation of damage imitation to one prestressed concrete continuous beam bridge . three conditions is divided to carry out analysis and study and compare the diagnose ability about the displacement mode and curvature mode method to the different conditions of single damage location and a couples of ones , and the effect of different damage degree to damage identification for structures
本文(第4章)采用曲率模态法对一座预应力混凝土连续梁桥进行损伤仿真计算，文中分三种工况进行分析，研究和比较了位移模态、曲率模态方法对于单一损伤位置和多处损伤位置不同情况的诊断能力，以及不同损伤程度对于结构损伤识别的影响等。 |
| 9. | The conclusion is given as follows : 1 . the curvature mode is rather sensitive to the damage of structure . it is more sensitive than frequency and displacement mode and can be used to locate the damage of structures like a beam , and it is also sensitive to several damage
我们得到以下结论： ( 1 )曲率模态是结构损伤识别的敏感标识量，曲率模态比频率和位移模态对损伤更敏感，可以用曲率模态检测梁式结构损伤的位置，且曲率模态对多处损伤部位敏感，各处损伤部位之间不相互影响，符合实际检测需要； ( 2 )曲率模态对结构的损伤程度也可以进行定性分析。 |
