1) buckling form
失稳模型
1.
Two models of lateral bucking were given on the basis of composite beams buckling form,composite beams lateral buckling was studied in negative bending regions by the energy method,and the formula which was used to calculate critical bending moment in the elastic stage was deduced.
鉴于钢-混凝土组合梁在负弯矩作用下,组合梁中“工”字钢梁的下翼缘受压,在没有侧向支承的情况下,很容易出现整体失稳的现象,根据组合梁整体失稳的形式建立了2种失稳模型,并采用能量法对组合梁负弯矩区的侧向稳定性进行探讨,给出组合梁在弹性受力阶段临界弯矩的计算公式。
2) destabilization prediction model
失稳预测模型
3) plane instability model
平面失稳模型
1.
Study on plane instability model and failure criterion of horizontal-strata landslide
近水平地层滑坡平面失稳模型与破坏判据研究
4) unstable mode
失稳模式
1.
On the basis of in-site survey of rock stress,physical and mechanical tests of rock,investigation of rock mass structure,numerical simulation and engineering practices,the unstable mode of the laneways that located in different rock mass was analyzed carefully.
根据原岩应力测量、岩石物理力学试验、岩体结构调查、数值模拟计算以及工程实际,详细分析了处于各类岩体中的采矿巷道的失稳模式,针对采矿巷道的岩体特性、工程部位及其作用以及预测破坏模式,提出了不同的支护方式及参数,取得了较好的效果。
2.
By means of analyzing equilibrium points, the influence of OTLC and load on power system voltage stability is researched, and it is pointed out that the unstable modes of voltage are related to the modes of unstable equilibrium points (UEPs), therefore the unstable modes of voltage can be judged acco.
文章通过分析系统平衡点研究了OLTC和负荷对电力系统电压稳定性的影响,指出电压失稳模式与系统不稳定平衡点的模式有关,因此,可以根据系统不稳定平衡点的不稳定流形判断系统电压的失稳模式。
3.
The results show that the unstable model of the formula about the weight of ballast is slippage or roll under the water drag.
从分析现有设计方法中混凝土联锁排失稳的动力学机理出发,根据排体内部和边缘的失稳模式及受力特点,推导出水流作用下不同部位排体的稳定厚度计算公式。
5) instability mode
失稳模态
1.
A new method of identifying instability modes around normal operating point is proposed.
提出了一种快速识别初始运行点附近失稳模态的方法,该方法基于大量计算观察到的初始运行点附近不同运行点注入下模型的可达性格纳姆矩阵元素近乎不变的性质,将基于K-中心点算法的同调识别和初加速度法相结合,快速识别初始运行点附近的失稳模态,为实用动态安全域(PDSR)直接法提供了临界点搜索建议,改善了PDSR法。
6) instability mode
失稳模式
1.
From the initial operating point,this method searched the new instability modes with the change of parameters by the way of iteration.
该方法从初始运行点出发,通过迭代确定系统失稳模式随参数变化的情况。
2.
In this paper relationship of chaotic phenomena and instability modes are studied in order to ascertain the possible spot of chaos in the evolution of power system instability .
该文研究的重点是弄清楚馄沌现象与系统不同失稳模式之间的关系和混沌现象在系统失稳发展过程中所处的实际位置。
3.
Based on the exposed site geological condition of Shimenkan hydropower house,the authors preliminarily analysed the slope instability mode by stereographic projection method,and made stability calculation of field deterministic wedge.
结合石门坎水电站厂房后边坡的开挖揭露的地质条件,运用极射赤平投影法对后边坡的失稳模式做了初步判断,对现场确定性楔形体进行了稳定性计算。
补充资料：裂纹失稳扩展
分子式：
CAS号：
性质：材料内部裂纹尖端的应力场强度因子达到或超过材料的断裂韧性之后发生的裂纹快速扩展。裂纹失稳扩展将导致材料迅速断裂。
CAS号：
性质：材料内部裂纹尖端的应力场强度因子达到或超过材料的断裂韧性之后发生的裂纹快速扩展。裂纹失稳扩展将导致材料迅速断裂。
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