| 1. | Curvature model based many damage locations identification of reinforced concrete beam 基于曲率模态的钢筋混凝土梁多点损伤位置识别 |
| 2. | It was proved that frequency change square ratio was a parameter for damage location and damage degree in a structure 结果表明,结构频率的平方变化比是损伤位置和损伤程度的函数。 |
| 3. | The method presented has the capability of tracking the time - varying parameters and detecting the damages , including the damage location and severity 该方法能够追踪时变的参数,检测损伤,包括损伤的大小和位置,以及损伤发生的时刻。 |
| 4. | In order to avoid the possible error of damage location by the flexibility comparison method , the flexibility projection method to locate the damage was proposed 为了克服柔度阵比较法可能出现错误损伤定位,提出了结构损伤定位的柔度投影法。 |
| 5. | A methodology was put forward for damage location , and damage simulating as well as numerical calculation of modal analysis was carried out on a truss plane bridge by stiffness discount 摘要推导了基于测试频率平方变化比的损伤定位方法,利用有限元方法对一管道结构以刚度折减法进行了损伤模拟和模态分析数值计算。 |
| 6. | Based on wavelet , a damage identification method with four steps is proposed in shm , and a flow chart which includes damage alarming , damage validity , damage location and damage qualification is given 基于小波分析提出了结构健康监测中损伤识别的四阶段分析方法,即损伤预警损伤确认损伤定位损伤定量,并给出了流程图。 |
| 7. | Conclusion can be drawn from the researches in this paper that probability neural network is efficient to judge damage location approximately , and that radial basis functions network is an excellent tool for structural damage diagnosis 根据本文的研究可以得知,概率神经网络可以很好的用于结构损伤大致定位,而径向基网络则是一种良好的结构损伤诊断工具。 |
| 8. | According to fiberglass - reinforced composite material , the propagation modes of lamb wave before and after damage ' s generation is analyzed . ellipse technique is applied to determine damage location . three time delay estimation methods are compared 针对复合材料板,分析了lamb波在结构损伤前后的传播速度;采用了椭圆技术来确定损伤位置;比较了三种不同的时延估计方法的损伤定位效果。 |
| 9. | With the variation rate of the first mode as a signature for damage detection , it is shown that the variation rate of the first mode not only is sensitive to the damage location and the extent , but also obeys the law of superposition 取结构的一阶振型变化率作为损伤诊断标识量,计算分析显示该标识量不仅对结构的损伤位置以及损伤程度敏感,而且在多位置损伤状态下结构的损伤位置和损伤程度是各单位置损伤状态下结构的损伤位置以及损伤程度的叠加。 |
| 10. | The application of the three damage identification techniques above for simple supported beams and cantilever beams confirm that vague or wrong location will occur in the damage location method based on flexibility difference , and the curvature modal method need not rely on the structural parameter before the damage , but has the hidden trouble of vague location for small damage 将以上三种损伤识别技术应用于简支梁、悬臂梁的模拟损伤识别,证实了基于柔度差值的损伤定位方法存在模糊或者错误定位的问题,曲率模态法可以不依赖损伤前的结构参数,但对于小损伤也存在模糊定位的隐患。 |