| 1. | The decision of fatigue stress table of belt 载荷谱的确定 |
| 2. | Sonic fatigue stress simulation and pattern recognition of an aircraft flap 飞机襟翼声疲劳应力的仿真与模式识别 |
| 3. | The influence upon the fatigue stress of longitudinal bracing rods due to the transverse vibration of steel bridges 横向振动对钢板梁桥联结杆件疲劳应力的影响 |
| 4. | Feather and down . determination of the permanent deformation after dynamic fatigue stress under constant load 羽毛和羽绒.恒定负荷动态疲劳应力下永久变形的测定 |
| 5. | Feather and down - determination of the permanent deformation after dynamic fatigue stress under constant load 羽毛和绒毛.固定负荷下动态疲劳应力永久变形的测定 |
| 6. | Railway rolling stock . behaviour of rolling stock ' s seats at statics stress , fatigue stress , vibrations stress and shocks stress 铁路车辆.在静态应力疲劳应力振动应力和冲击应力下铁路车辆座位的特性 |
| 7. | And two types of fatigue equations are put forward . according to them the fatigue stress coefficient of lcb for the concrete pavement structure and the structure coefficient of tension strength of lcb for the asphalt pavement structure are developed 并提出了贫混凝土两种形式的疲劳方程,据此推导了混凝土路面结构贫混凝土基层的疲劳应力系数和沥青路面结构贫混凝土基层的抗弯拉强度结构系数。 |
| 8. | The formula of axle load conversion in the standard has some problems , so respectively according to the corresponding formulas of load stress and fatigue equations of concrete pavement and lcb , the different formulas of axle load conversion and fatigue stress coefficients are put forward 针对规范中轴载换算存在的问题,分别根据面层和基层的荷载应力公式和疲劳方程,提出轴载换算公式以及疲劳应力系数。 |
| 9. | Lastly , with the fatigue equation , the paper establishes the fatigue stress coefficient which is used in the load stress calculation for lean concrete as undersurface of cement concrete pavement , and the structure coefficient of flexural tensile strength which is used in the flexural stress check for lean concrete as base of asphalt pavement 利用得出的疲劳方程,建立贫混凝土作为水泥混凝土路面下面层荷载应力计算的疲劳应力系数,以及作为沥青路面基层时,进行层底弯拉应力验算的弯拉强度结构系数。 |
| 10. | The large - scale and general finite element software - ansys is employed to analyse the frame of locomotive in speed of 200km / h by fea . according to the analytical results , the static stress and fatigue stress of frame are checked in the light of current criterions . at the same time , the mode analysis of frame is made and the results are analysed 本文利用大型通用有限元软件ansys对200km / h转向架构架进行了有限元分析,分析结果参照我国的现行标准对构架的静强度和疲劳强度进行评定,同时,对构架进行模态分析,研究并评定了模态分析的结果。 |