考虑齿轮位移协调的2级星形传动多分流均载研究  

Algorithm About Dense Fog Image Dehazing Based on Atmospheric Extinction Coefficient and Guided Filtering

作　　者：龙伟 傅继贤 李炎炎 夏玉琪 杨国涛 LONG Wei,FU Jixian ,LI Yanyan,XIA Yuqi,YANG Guotao （School of Manufacturing Sci. and Eng. ,Sichuan Univ. ,Chengdu 610065,China）

机构地区：四川大学制造科学与工程学院,四川成都610065

出　　处：《四川大学学报（工程科学版）》2016年第4期175-180,共6页Journal of Sichuan University (Engineering Science Edition)

基　　金：国家科技支撑计划资助项目（2014BAF08B01）; 国家科技重大专项资助项目（2013ZX04001061）; 航空科学基金资助项目（20130451010）; 北京市高效绿色数控加工工艺及装备工程技术研究中心资助项目（Z141104004414067）; 北京航空航天大学基本科研业务费——博士研究生创新基金资助

摘　　要：为了揭示航空发动机2级星形传动系统大小星轮载荷分配机理,针对所有齿轮的偏心误差、齿厚误差、基节误差、安装误差,轴承制造误差等分别进行了当量角度啮合误差分析,考虑了太阳轮和内齿圈同时浮动导致的啮合侧隙变化而引起的浮动啮合误差,得到了2级啮合线上的综合角度啮合误差,建立了针对2级4路功率分流特征的各齿轮转角位移协调的精细化均载系数计算模型,获得了多分流多级系统的均载系数和均载特性曲线,得到了太阳轮和内齿圈的浮动规律,为航空宇航制造上确定均载系数、工艺上合理分配及控制公差提供科学依据。In order to deal with the problems that dense fog influences the image quality, a dense fog image defogging algorithm was put forward. The physical model of imaging in fog was simplified, and the concept of fog concentration factor was put forward. The relation- ship between visibility and fog concentration factor was established by analyzing the factors affecting the concentration of fog. By seeking the value of the fog concentration factor and Estimating the value of atmospheric light using guided filtering, the dense fog image could be recovered. Experimental results showed that after the algorithm the image brightness is higher, the image contrast and resolution is higher, and the overall visual perception of the image is better.

关 键 词：位移协调 星形传动系统 多分流均载 功率分流 

分 类 号：TN911.73[电子电信—通信与信息系统;电子电信—信息与通信工程]