【作者】 张青杰； 梁云； 唐敏； 田伟； 贾晓楠；

【Author】 ZHANG Qingjie;LIANG Yun;TANG Min;TIAN Wei;JIA Xiaonan;Xinxiang Aviation Industry Group Co Ltd;School of Light Industry Science and Engineering,The South China Technology University;

【机构】 新乡航空工业(集团)有限公司新航116厂； 华南理工大学轻工科学与工程学院；

【摘要】 过滤材料在航空液压油过滤中起着至关重要的作用,一般过滤材料的耐疲劳性能难以保持系统过滤元件使用期内的高过滤效率性能,针对过滤元件在使用过程中过滤效率不断衰减和过滤材料疲劳性能理论和试验研究不足等问题,本文以多次通过试验为基础,基于高比能量吸收性方法建立了复合过滤材料多次通过试验性能研究模型;通过选择采用丝径为0.09 mm、0.14 mm、0.16 mm的支撑层金属编织网滤材搭配无纺布滤材和玻纤滤材组成多铺层强化方案进行压降特性、过滤效率、纳污容量等试验研究。研究结果表明,支撑层金属编织网滤材丝径为0.16mm的多铺层强化结构方案在基本不影响复合过滤材料压降的条件下,过滤效率衰减至99.95%时,比能量吸收值为5.11×10~6焦耳,优于丝径为0.14mm时比能量吸收值4.06×10~6和丝径为0.09 mm时的比能量吸收值1.86×10~6焦耳。更多还原

【Abstract】 The filter material plays an important role in the filtration of aviation hydraulic oil.Filter materials play an important role in the filtration of aviation hydraulic oil.The fatigue resistance of the general filter material is difficult to maintain the high filtration efficiency performance of the system filter element is declining in the process of use,and the theoretical and experimental research on the fatigue performance of the filter material is insufficient.In this paper,based on the method of high specific energy absorption,the composite filter material has been established on the basis of multi-pass experiments.The performance research model of the composite filter material has been established on the basis of multi-pass experiments.By using the support layer series woven mesh filter material with a wire diameter of 0.09 mm,0.14 mm and 0.16 mm,together with the non-woven filter material and the glass fiber filter material to form a multi-layer strengthening scheme,the pressure difference filtration efficiency and experimental study on pollutant carrying capacity has been carried out.The results show that the support layer with wire diameter of 0.76 mm and the material basically do not affect the pressure drop of the composite filter material,the filter efficiency attenuation is the smallest in the experimental process,and it has high specific energy absorption,which achieves the purpose of significantly improving the filter efficiency of the composite filter material and the performance of count flow fatigue and cyclic impact.更多还原