| 1. | Investigation on occupational damaging elements in computer operating staff
计算机人员职业危害因素调查 |
| 2. | The stability of surrounding rock of xiangjiaba hydro - power station ' s underground powerhouses is demonstrated by the method of three - dimensional elastic and plastic damage elements
摘要采用三维弹塑性损伤有限元数值分析法对向家坝地下厂房洞群围岩稳定性进行了分析论证。 |
| 3. | The acoustic emission experiments of concrete under uniaxial tension loading in whole process are conducted arid the stochastic modeling theory is introduced to determine the random field distribution parameters of the limit fracture strain of the mesoscopic damage elements
利用混凝土单轴受拉破坏全过程的声发射实验数据，引入随机建模理论，确立了细观损伤单元的极限破坏应变随机场分布参数。 |
| 4. | When intergranular damaged elements reached a certain numbers , the behavior of the corresponding representative elements will be softened . intergranular failure path accelerates localized plastic deformation along some shear bands and alleviates others
从数值结果发现，沿晶损伤单元达到一定数目，材料代表性单元的整体行为才呈现软化，沿晶破坏加速某些方向而减小另一些方向变形局部化发展。 |
| 5. | This model includes the ammunition analysis , the damage element analysis , the damage field analysis , the target analysis , the principle of dividing the target critical components , the components damage criteria , the damage assessments of components and the whole target
本文建立了ahead弹对典型目标的毁伤计算模型，该模型包括弹药分析、毁伤元分析、毁伤场分析、目标分析、目标要害部件分析、部件毁伤评估以及目标毁伤评估等内容。 |
| 6. | When damaged elements increase at the same time and the number of element is much more than that of measured modes , the sensitivity analysis method can ? give desired results . therefore , a method which can identify damage though two steps , location and extent , is put forward
当结构中同时损伤的单元数目较多，以及结构单元数目远大于实测的模态阶数时，灵敏度分析法的识别结果严重下降，本文提出损伤识别的两步法，将结构的损伤分为定位和定量两个步骤，有效地改进了识别效果。 |
| 7. | Through the investigation research on practical damaged element , considering the effect of corrosion , high temperature , wet environment , damage ( crack ) on structural durability , bearing capacity . this paper established the reliability analysis method of large - scale industrial factory , and applied the fuzzy mathematics to establish the factor set and weight coefficient set on the basis of expert experience . an analyzed method for fuzzy evaluation of structural element and bent frame structure system reliability is put forward
通过对实际结构破损构件的调查，考虑腐蚀，高温，环境潮湿，破损(裂缝)等因素对结构耐久性、承载力的影响，论文建立了大型工业厂房可靠度的计算方法，利用专家经验和模糊数学方法建立了模糊评价的因素集和权重集，对钢筋砼结构构件和厂房排架结构体系进行了模糊评价。 |
| 8. | Through the experiment research on practical damaged element , considering the effect of durability damage of steel corrosion and crack on structural element function . for the maintainment and transform plans " selection and prevention of heavy accidents the paper put forward abundant basis . it ' s perfection and development will provide basis for scientific management of active structure
分析可知：钢筋锈蚀是造成结构承载力下降的根本原因，同时也找出钢筋混凝土结构耐久性影响的因素，为合理选择大修改造方案，防止重大事故等方面提供充分依据，它的完善和发展将为现役结构的科学管理提供依据。 |
| 9. | The steady of grottoes attacked by earthquake is analyzed with the engineering soft named adina , in order to show where the weak parts of grottoes are and time - history curves of the horizontal displacement of the easily damaged nodes and time - history curves of first and third principal stress of the easily damaged elements
( 3 )以大型adina有限元分析软件为基础,编制了预应力锚索材料的非线性有限元计算程序模块,研究石窟在地震作用下的稳定性问题。选取能代表石窟整体结构的三个不同剖面作为有限元计算模型,并采用不同工程特性的地震动加速度时程作为荷载输入。 |
| 10. | Firstly according to the shooting process of the ahead system , and on the basis of the ammunition makeup , the movement of the damage element is analysed , the practical character of damage field is given . then the critical components corresponding to the damage levels are chosen , and dynamic impact process between the damage field and the target is studied deeply . finally , in accordance with the logic relation of the components damage and the target damage , the whole target damage effect is calculated
首先从ahead弹的射击作战原理出发，以弹药结构为基本依据，分析毁伤元的运动特性，得到毁伤场的具体特征，然后，对目标进行与毁伤级别对应的要害部件的提取，进而，对毁伤场与目标动态交汇过程进行了深入分析，最后，根据部件毁伤与目标毁伤的逻辑关系得到整个目标的毁伤概率。 |
