| 1. | Bend of the laminated beam with shape memory alloy
形状记忆合金复合材料层合梁的弯曲 |
| 2. | The application of vibrothermography to ndt of laminated beam
振动红外热像法在层合梁无损检测中的应用 |
| 3. | Where bamboo plywood panels and laminated beams used for root trusses , sheathing boards and wall panels
它的校舍屋架,屋顶板和内外墙板均为竹集成材和竹胶合板制成。 |
| 4. | The nonlinear deformations of simply supported , fixed supported and cantilever piezoelectric laminated beams were studied under strong electric field and mechanical force
摘要本文研究简支，固支和悬臂压电层合梁在强电场和机械荷载联合作用下的非线性变形。 |
| 5. | Considering the influence of electrostrictive nonlinear piezoelectric effect , electroelastic nonlinear piezoelectric effects and geometric nonlinearity , the mathematical model of piezoelectric laminated beam was obtained
考虑材料的电致伸缩和电致弹性压电效应以及几何非线性导出压电层合梁的数学模型。 |
| 6. | In this paper , firstly the influence of the delamination upon the natural frequencies of a laminated beam is studied in detail . by partitioning the delaminated beam , its natural frequencies are obtained
本文首先详细分析了层合梁的脱层现象对其振动频率的影响，通过对脱层梁进行分区处理，得到了脱层梁自振频率变化的规律。 |
| 7. | Numerical results reveal that the delamination decreases the natural frequencies of the laminated beam , especially for the lower order natural frequencies ; and short delamination has no appreciable influences on its natural frequencies
计算与分析结果表明，脱层使得层合梁的固有频率降低，且对低阶的频率影响较大；短脱层对梁的固有频率并没有明显的影响。 |
| 8. | Based on the results of previous researchers , the following instigations have been carried out in this paper : ( 1 ) employing a reasonable local resonance model which can accurately embody the heat - generation behavior due to resonance and vibration - heat mode in delaminated region , the dynamic response and temperature distribution in the small delamination region of a laminated beam are formulated . influence of the excitation frequency on the temperature gradient formation is analyzed numerically , and several meaningful conclusions are drawn . ( 2 ) for laminated plates with delaminations , due to complexity of the analytical solution , the finite element method is employed to analyze their temperature distributions and satisfactory results are also obtained
本文在前人研究的基础上，对此方法进行了进一步的探讨，主要做了以下的工作： ( 1 )选取合理的、能够准确反映由共振而产生热量的行为的局部响应模型，以及合理的振动热模式，推导了一维层合梁小脱层区域的振动响应及梁的温度分布，并编制程序计算了该层合梁在激励一段时间后的温度分布趋势，分析了激励频率对温度梯度形成的影响，得到了一些有意义的结论； ( 2 )对于二维层合板，由于解析解的形式异常复杂，本文采用有限元计算软件对其温度分布进行了分析，也得到了较为满意的结果。 |
