某发动机外场地面试车振动监测限制值确定研究
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摘要
针对某发动机缺乏外场地面试车振动监测限制值,严重影响安全使用的客观事实,在对该型发动机结构特点分析的基础上,借助于转子动力学有限元技术,建模分析了该发动机的转子动力学特性,明确了应重点监测燃气涡轮机匣处振动,为外场振动实测提供了理论指导.结合大量的外场实测振动数据分析,基于旋转机械振动监测限制值确定的通用原则,初步给出了工程适用的外场地面试车振动监测限制值建议.
The study was taken in order to evaluate vibration limit value for an aeroengine and to improve its safety in utilization. Based on the analysis of characteristics of the engine structure and its rotor bearing,a model was built by means of rotor dynamics finite element methods. The dynamic performance of engine rotor was investigated. It points out that gas turbine case is key point for vibration monitoring. Field vibration tests were carried out according to the findings. Vibration data were fully studied. According to principles for rotating machinery vibration standards,the vibration limit values for field ground test were put forward,which was suitable to engineering.
The study was taken in order to evaluate vibration limit value for an aeroengine and to improve its safety in utilization. Based on the analysis of characteristics of the engine structure and its rotor bearing,a model was built by means of rotor dynamics finite element methods. The dynamic performance of engine rotor was investigated. It points out that gas turbine case is key point for vibration monitoring. Field vibration tests were carried out according to the findings. Vibration data were fully studied. According to principles for rotating machinery vibration standards,the vibration limit values for field ground test were put forward,which was suitable to engineering.
引文
1李文明.新机研制中整机振动及其限制值实践与思考.航空发动机,2002(2):22~26(Li W M.Engine vibration and its limit in development of new engine-practice and consideration.Aeroengine,2002(2):22~26(in Chinese))
2王俨剀,廖明夫.基于试车数据统计的振动限制值确定方法.推进技术,2008,29(5):617~621(Wang YK,Liao M F.Estimating vibration limit value based on statistics for engine testing data.Journal of Propulsion Technology,2008,29(5):617~621(in Chinese))
3王俨剀,王理,廖明夫.航空发动机整机测振中的基本问题分析.航空发动机,2012,38(3):49~53(Wang YK,Wang L,Liao M F.Analysis of basic problems for aeroengine vibration measurement.Aeroengine,2012,38(3):49~53(in Chinese))
4 370厂.某型发动机技术说明书.370厂,1998,8(370Factory.Technical specification for a certain type of engine.370 Factory,1998,8(in Chinese))
5 370厂.某型发动机维修手册.370厂,1998,8(370Factory.Maintenance manual for a certain type of engine.370 Factory,1998,8(in Chinese))
6中国航空材料编辑委员会.中国航空材料手册第1、2卷.北京:中国标准出版社,2002,5(China aeronautical materials editorial board.Handbook of China aviation materials volume 1and2.Beijing:China Standard Press,2002,5(in Chinese))
7 GJBz 20204-93.航空涡轮喷气和涡轮风扇发动机振动标准,1994(GJBz 20204-93.Vibration standard of the aviation turbojet and turbofan,1994(in Chinese))
8 GJB242-87.航空涡轮螺桨和涡轮轴发动机通用规范,1987(GJB242-87.General specification for engines,aircraft,turboprop and turboshaft,1987(in Chinese))
9秦海勤,徐可君,江龙平.某型发动机机载振动监测测振点选择研究.推进技术,2007,28(6):697~702(Qin H Q,Xun K J,Jiang L P.Research on distribution of airborne vibration monitoring measuring points for the aeroengine.GJB242-87.Journal of Propulsion Technology,2007,28(6):697~702(in Chinese))
10孟照国,王昊,秦海勤等.机匣参数对双转子航空发动机整机动力学特性的影响分析.动力学与控制学报,2018,16(3):258~264(Meng Z G,Wang H,Qin H Q,et al.Analysis on influence of casing parameters on dynamic Characteristics of dual-rotor sero-engine.Journal of Dynamics and Control,2018,16(3):258~264(in Chinese))
11韦淞瀚,卢文秀.盘轴系统配合松动的振动特性研究.动力学与控制学报,2018,16(3):244~249(Wei S H,Lu W X.Analysis on vibration characteristics of diskshaft system with loose fit journal of dynamics and control.Journal of Dynamics and Control,2018,16(3):244~249(in Chinese))
12梁小筠.正态性检验(三).上海统计,2002(12):24~28(Liang X J.Normality test(three).Shanghai Statistics,2002(12):24~28(in Chinese))
2王俨剀,廖明夫.基于试车数据统计的振动限制值确定方法.推进技术,2008,29(5):617~621(Wang YK,Liao M F.Estimating vibration limit value based on statistics for engine testing data.Journal of Propulsion Technology,2008,29(5):617~621(in Chinese))
3王俨剀,王理,廖明夫.航空发动机整机测振中的基本问题分析.航空发动机,2012,38(3):49~53(Wang YK,Wang L,Liao M F.Analysis of basic problems for aeroengine vibration measurement.Aeroengine,2012,38(3):49~53(in Chinese))
4 370厂.某型发动机技术说明书.370厂,1998,8(370Factory.Technical specification for a certain type of engine.370 Factory,1998,8(in Chinese))
5 370厂.某型发动机维修手册.370厂,1998,8(370Factory.Maintenance manual for a certain type of engine.370 Factory,1998,8(in Chinese))
6中国航空材料编辑委员会.中国航空材料手册第1、2卷.北京:中国标准出版社,2002,5(China aeronautical materials editorial board.Handbook of China aviation materials volume 1and2.Beijing:China Standard Press,2002,5(in Chinese))
7 GJBz 20204-93.航空涡轮喷气和涡轮风扇发动机振动标准,1994(GJBz 20204-93.Vibration standard of the aviation turbojet and turbofan,1994(in Chinese))
8 GJB242-87.航空涡轮螺桨和涡轮轴发动机通用规范,1987(GJB242-87.General specification for engines,aircraft,turboprop and turboshaft,1987(in Chinese))
9秦海勤,徐可君,江龙平.某型发动机机载振动监测测振点选择研究.推进技术,2007,28(6):697~702(Qin H Q,Xun K J,Jiang L P.Research on distribution of airborne vibration monitoring measuring points for the aeroengine.GJB242-87.Journal of Propulsion Technology,2007,28(6):697~702(in Chinese))
10孟照国,王昊,秦海勤等.机匣参数对双转子航空发动机整机动力学特性的影响分析.动力学与控制学报,2018,16(3):258~264(Meng Z G,Wang H,Qin H Q,et al.Analysis on influence of casing parameters on dynamic Characteristics of dual-rotor sero-engine.Journal of Dynamics and Control,2018,16(3):258~264(in Chinese))
11韦淞瀚,卢文秀.盘轴系统配合松动的振动特性研究.动力学与控制学报,2018,16(3):244~249(Wei S H,Lu W X.Analysis on vibration characteristics of diskshaft system with loose fit journal of dynamics and control.Journal of Dynamics and Control,2018,16(3):244~249(in Chinese))
12梁小筠.正态性检验(三).上海统计,2002(12):24~28(Liang X J.Normality test(three).Shanghai Statistics,2002(12):24~28(in Chinese))