1) second_mode
二阶振型
2) second-order resonance
二阶共振
1.
The exploration leads to the following conclusions: with journal misalignment considered,the first-order natural frequency decreases but the second-order natural frequency increases;the amplitude of vibration for the second-order resonance is augmented;the minimum thickness of oil film is diminished whi.
得到的主要结论是:考虑轴倾斜时一阶固有频率略有下降,二阶固有频率略有上升;二阶共振时振动幅度增大;最小油膜厚度减小,最大油膜压力上升。
3) nominal modes
振型阶数
4) higher modes
高阶振型
1.
The influence of higher modes on the yield displacement, ultimate displacement and the displacement ductility for a tall pier is investigated.
本文运用增量动力分析方法来计算高墩的屈服位移、极限位移和位移延性,给出了应用IDA方法计算屈服位移、极限位移的主要过程,探讨了高阶振型对高墩位移延性能力的影响。
2.
Since it considers the synthetic effect of the structural stiffness degradation, influence of higher modes of vibration, the spectral acceleration theory and the SRSS or CQC combination of modes, the adaptive pushover analysis is more accurate than the pattern loaded with fixed lateral force in simulating the structural stress state.
阐述了ConventionalPushover分析法的基本原理和方法,指出固定侧向力加载模式的缺陷;由于AdaptivePushover分析法考虑了结构刚度退化、高阶振型的影响、地震反应谱理论以及SRSS或CQC振型组合的综合作用,同固定侧向力加载模式相比,对结构受力状态的模拟更加准确。
3.
It indicates that the IASPA procedure provides more superior accuracy in estimating seismic performance structures compared with MPA procedure because it takes into consideration the contributions of higher modes to response and for the redistribution of inertia forces after structural yielding.
结果对于高阶振型影响较小、结构屈服后振动特性变化不明显的低层结构,IASPA法和MPA法得到的结构峰值响应非常相近。
5) multi-mode vectors
多阶振型
1.
From the basic principle of static elasto-plastic analysis combined with characteristics of the structure in high buildings,an improved method of static elasto-plastic analysis including both the combination of multi-mode vectors and the instantaneous dynamic characteristics of the structure is presented.
为了使静力弹塑性分析方法应用于高层结构的弹塑性变形计算,该文根据静力弹塑性分析的基本原理并结合高层建筑结构特点,通过理论分析,得到了既考虑多阶振型组合又能反映结构瞬时动力特性的静力弹塑性分析改进方法。
6) first mode shape
一阶振型
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。
参考词条