1) sea ice fatigue parameter
疲劳海冰参数
2) sea ice factor
海冰参数
3) Complex fatigue parameter
复合疲劳参数
4) dynamic fatigue parameter (n_d)
动态疲劳参数
5) multiaxial fatigue parameters
多轴疲劳参数
1.
The bridge-like specimens were applied to study the multiaxial fatigue parameters which played a crucial role in fretting fatigue, in the thesis; following were the critical plane fatigue parameters:the modified Smith-Watson-Topper (MSWT), the modified Fatemi and Socie (MFS) and the new modified shear stress rang (NMSSR).
本文通过对桥式试件的应力应变数值分析,研究了控制微动疲劳失效的临界面多轴疲劳参数,提出了考虑平均应力修正的MSWT、MFS和NMSSR参数,并开发了这些参数的相应计算程序。
6) ice-induced fatigue
冰激疲劳
1.
The strength of legs of a jack-up drilling platform serviced in Bohai Sea is evaluated and the ice-induced fatigue damage of the platform leg under different ice parameter was determined.
对渤海某自升式钻井平台桩腿进行了强度校核,计算出不同海冰参数下平台桩腿的冰激疲劳损伤。
2.
The strength of a jack-up platform serviced in Bohai Sea is checked by using the method proposed in this paper,the ice-induced fatigue damage of the platform leg under different ice parameter is calculated.
方法对渤海某自升式平台桩腿进行了强度校核,计算了不同海冰参数下平台桩腿的冰激疲劳损伤。
3.
The detailed process of fine assessment on the time-field of ice-induced fatigue on the offshore platform is presented in order to evaluate the safety reliability of offshore platform in the ice region within the service period.
为了评估冰区平台在服役期内的安全可靠性,给出了平台冰激疲劳时域精细评估的详细流程。
补充资料:海冰
海冰 sea ice 海洋中冻结而成的咸水冰 。广义的海冰还包括在海洋中的河冰、冰山等。最初形成的海冰是针状的或薄片状的,随后聚集和凝结,并在风力、海流、海浪和潮汐的作用下,互相堆叠而成重叠冰和堆积冰。一般情况下都浮于海面,形状规则的海冰露出水面的高度为总厚度的1/7~1/10,尖顶冰露出的高度达总厚度的 1/4~1/3。反射率为0.50~0.70,抗压强度约为淡水冰的3/4。海冰可分为两类:①固定冰。多分布在大陆沿岸或岛屿附近,与海岸、岛屿,甚至与海底冻结在一起。②浮冰或冰山。随风、浪、流而漂移。 海冰在极地的分布具有显著的季节性变化和年际变化。①北半球。冰界以3~4月最大,8~9月最小。北冰洋几乎全为冰所覆盖,流冰群主要绕洋盆边缘流动,多为3~4米厚的多年冰。②南半球。多为2~3米厚的、到了夏天就能融化的冰,大致呈纬向分布,冰区以9月(属冬天)最大,3月(属夏天)最小。固定冰分布南极大陆周围和威德尔海。浮冰冰界在南太平洋、南印度洋和南大西洋。分别在南纬50°~55°、南纬45°~55°和南纬43°~55°。 |
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