1) Gravity second-order effect
重力二阶效应
1.
We suggest that Gravity second-order effect should be taken into account in structure design and structure test and assess of multilayer frame structu.
通过对不同工况下三跨两层平面框架结构的检测实验,对比分析了恒载对框架结构动力检测参数的影响问题,得出了恒载对一般框架结构的检测刚度和检测频率有较大影响的结论,建议在多层框架结构的新建设计以及实测鉴定中也应考虑重力二阶效应的影响。
2) second-order stress effect
二阶应力效应
3) second-order effect
二阶效应
1.
Analysis on second-order effect of semi-rigid connective beam-column steel frame;
半刚性连接梁柱钢框架的二阶效应分析
2.
Influence of second-order effects on response history analysis of steel megaframe;
二阶效应对巨型钢框架结构时程分析的影响
3.
Influences of second-order effect on structural analysis of steel frames;
二阶效应对钢框架结构分析的影响
4) second order effect
二阶效应
1.
Steel frame calculation including semirigid connections material nonlinear and second order effect;
综合考虑节点半刚性、材料非线性与二阶效应的钢框架计算
2.
Practical calculation of second order effect of frame structure;
框架结构二阶效应实用计算
3.
At last, the global stiffness matrix of story shear model with second order effect and shear deformation of panel zon.
采用杆系模型形成结构的总刚矩阵,分析时考虑了梁、柱的弯曲、剪切、轴向变形以及节点域的剪切变形;经过静力缩聚将其化为质点串模型,然后结合层模型的一些特点,得出等效层间剪切刚度,最后利用层间剪切模型的简化二阶分析方法得到了考虑二阶效应及节点剪切变形的层间剪切模型总刚矩阵。
5) second-order effects
二阶效应
1.
Although methods for the second-order effects of plane frames were developed in the 1980s, much of this early work was surprisingly sophisticated or simplified and, it is worth re-visiting.
采用共旋坐标法准确地导出了平面梁单元发生大转动小应变时的单元切线刚度矩阵,并利用该单元切线刚度矩阵的列式和Newton-Raphson迭代法开发了1个FORTRAN程序NPFSAP,从而获得了高层框架结构二阶效应的高精度数值解,由此发现高层建筑的二次效应与水平荷载的关系不明显,但建筑物刚度越小,竖向荷载越大,建筑物层数越多,二次效应越明显提出了1个高层框架中柱二次效应的计算公式,为工程设计人员提供了准确计算框架弯矩的办法。
2.
An equivalent circuit model of SAW(Surface Acoustic Wave) second-order effects is proposed.
提出了声表面波器件二阶效应的等效电路模型,应用P矩阵法严格分析推导了声表面波器件二阶效应理论表达式,并根据P矩阵分析结果得到的声表面波器件二阶效应电特性参数,采用电网络理论综合出具有相同特性的等效电路模型,且应用PSPICE进行仿真,仿真结果与实验结果基本相符,验证了所提出声表面波器件二阶效应等效电路模型的正确性。
3.
Using Hamiltonian variational principle for water waves, a mild-slope equation for wave-current interactions over arbitrary depth in the near shore region is developed, including the second-order effects arising from a general changes of waves, currents and depths, reducing to some typical mild-slope type equations and leading to a generalized eikonal equ.
它可包含波、流和水深一般变化的二阶效应,约化为某些典型的缓坡型方程。
6) second order effects
二阶效应
1.
P-δeffects,P-Δeffects and second order effects have been distinguished in the definition at first,cantilever columns set as examples to explain the difference.
本文首先对P-δ效应,P-Δ效应与二阶效应从定义上加以区分,并以悬臂柱为例说明,然后以框架柱为例,分别推出了反映二者影响的单元刚度矩阵。
补充资料:二氧化双环戊二烯B阶树脂模塑料
分子式:
CAS号:
性质:又称二氧化双环戊二烯B阶树脂模塑料。以二氧化双环戊二烯B阶树脂为基料配制的能采用模塑方法成型的配混料。产品性能为:弯曲强度110MPa,冲击强度5.4kJ/m2;马丁耐热240℃;体积电阻率1.3×1016Ω·cm,介电强度24.5MV/m。由二氧化双环戊二烯B阶树脂,用石英粉等作填料,再加脱模剂配混制得。可用模塑法制成耐热、耐候制品用于军工和民用方面。
CAS号:
性质:又称二氧化双环戊二烯B阶树脂模塑料。以二氧化双环戊二烯B阶树脂为基料配制的能采用模塑方法成型的配混料。产品性能为:弯曲强度110MPa,冲击强度5.4kJ/m2;马丁耐热240℃;体积电阻率1.3×1016Ω·cm,介电强度24.5MV/m。由二氧化双环戊二烯B阶树脂,用石英粉等作填料,再加脱模剂配混制得。可用模塑法制成耐热、耐候制品用于军工和民用方面。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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