| 1. | Mode truncation of vibration structures based on energy criterion
结构振动模态截断的能量判据 |
| 2. | Distortion energy criterion for mixed mode crack propagation
复合型裂纹扩展的形状改变比能准则 |
| 3. | The stresses and strain are analyzed by marc software ; the safety factors evaluated based on displacement , yield region ( connected ) and total energy criteria
应力和应变由marc软件分析计算得到；安全系数由位移变化、屈服区连通率和总应变能变化来评价。 |
| 4. | Basically , the method is developed according to sensitivity analysis . the unit volume energy criterion of weak substructures of a structure system is proposed
在本文中提出了基于单元格能量的分析方法,这种方法基于灵敏度方法,它提出了薄弱机构的能量标准 |
| 5. | A new method to extract line - spectrum series based on energy criterion and sub - band synthesis is presented in this paper , and verification is further investigated with simulated and measured data
本文提出了一种基于能量判据和子频带综合的线谱序列提取方法，并利用实测数据进行了比较分析。 |
| 6. | The consistency of the energy criterion and the stress intensity factor criterion to model i crack is discussed concisely , and the new method to calculate linear critical fracture stress is presented
借助裂纹圆模型简明地论述了型裂纹扩展的能量判据与应力强度因子判据的一致性以及线性断裂临界应力的新算法。 |
| 7. | The study lies in following aspects : 1 ) a great number of experiments on sfrc are carried out to obtain the basic data of sfrc energy properties , which are the fundamental parts of further study . 2 ) a probability analysis based on statistical theory is done to all the experiment data . in the end , energy criterion for sfrc associated with security criterion are calculated and listed for future use
本文主要针对钢纤维喷射混凝土在单层隧道衬砌中的应用进行了研究，内容包括以下几个方面： 1 )进行了大量的钢纤维混凝土标准试件试验，试验的成果和数据为研究钢纤维混凝土的能量特征提供了事实依据和参考； 2 )运用概率统计方法对钢纤维混凝土的指标进行了可靠性分析，得出了实际可以接受的保证率下的钢纤维混凝土能量指标； 3 )通过合理的假设和简化，研究了钢纤维混凝土构件在破坏过程中的能量耗散机理。 |
| 8. | With the help of the theoretical equation of rolling and the energy criterion of mechanical vibration , and on the base of full consideration of roll gap nonlinearity during vibration , this paper suggests an approach to analyse the stability of self - excited vertical vibraiton of high speed cold strip mills by numerical method
摘要本文在充分考虑轧机垂直振动过程中辊缝非线性的基础上，利用轧制理论方程和机械振动理论中的能量判据，给出了更精确的分析高速冷轧机垂直自激振动稳定性的数值计算方法。 |
| 9. | Abstract : according to the decomposition failure mechanism of the boundary reaction film and the dynamics theory of the chemical reaction , the failure process of the boundary film is quantitatively described , and then the decomposition rate of reaction film is put forward , hereby the quantitative criteria - temperature , speed and activation energy criterion , for selecting the additives are determined
文摘:根据边界反应膜分解失效机理和化学反应动力学理论,对边界膜的失效过程作了定量数学描述,提出了反映膜分解率的概念,据此确定了添加剂的温度、速度和活化能等三个定量选用准则 |
