期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Application of response surface method for contact fatigue reliability analysis of spur gear with consideration of EHL 被引量:2
1
作者 胡贇 刘少军 +1 位作者 丁晟 廖雅诗 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第7期2549-2556,共8页
In order to consider the effects of elastohydrodynamic lubrication(EHL) on contact fatigue reliability of spur gear, an accurate and efficient method that combines with response surface method(RSM) and first order sec... In order to consider the effects of elastohydrodynamic lubrication(EHL) on contact fatigue reliability of spur gear, an accurate and efficient method that combines with response surface method(RSM) and first order second moment method(FOSM) was developed for estimating the contact fatigue reliability of spur gear under EHL. The mechanical model of contact stress analysis of spur gear under EHL was established, in which the oil film pressure was mapped into hertz contact zone. Considering the randomness of EHL, material properties and fatigue strength correction factors, the proposed method was used to analyze the contact fatigue reliability of spur gear under EHL. Compared with the results of 1.5×105 by traditional Monte-Carlo, the difference between the two failure probability results calculated by the above mentioned methods is 2.2×10-4, the relative error of the failure probability results is 26.8%, and time-consuming only accounts for 0.14% of the traditional Monte-Carlo method(MCM). Sensitivity analysis results are in very good agreement with practical cognition. Analysis results show that the proposed method is precise and efficient, and could correctly reflect the influence of EHL on contact fatigue reliability of spur gear. 展开更多
关键词 response surface contact fatigue reliability spur gear elastohydrodynamic lubrication
下载PDF
权利来自哪里——法律和认知的视角 被引量:1
2
作者 成凡 《法律和社会科学》 CSSCI 2017年第2期204-242,共39页
对权利的观察,按照天赋——自然——逻辑——法律——经验的链条依次展开,可得出不同的结论,而这往往是由于每个人存在的认知侧重或认知点不同。从法律与认知科学的角度切入,可以发现多样化的解释方案,并成为连接社会科学和规范法学的... 对权利的观察,按照天赋——自然——逻辑——法律——经验的链条依次展开,可得出不同的结论,而这往往是由于每个人存在的认知侧重或认知点不同。从法律与认知科学的角度切入,可以发现多样化的解释方案,并成为连接社会科学和规范法学的桥梁。认知存在不同的认知进程:一阶认知是感性认知,是自动进程,倾向直觉决策;二阶认知是理性认知,是控制进程,侧重推理决策。从法律意义上来看,二阶公平认知是权利认知,是在普遍的角度对一阶认知的反思和规则化。而权利认知在应对具体问题、解决法律争议的过程中,形成了三种权利初始规则和权利认知三原则——人权规则、产权规则、效率规则。无论是法律实例的分析,还是改革逻辑的把握,认知点和认知进程的差异与变迁形塑着不同的法律规则和改革重点。对法律人来说,'法律思维'是一阶法律思维,体现为'以事实为依据';'法律人思维'是二阶法律认知,体现为'以法律为准绳'。 展开更多
关键词 在先权利 社会科学 认知进程 二阶效率 公平感 法律人思维
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部