温度应力对引信用涡轮发电机的影响  

The Thermal Stress Effects on Fuze Turbine Alternator

作　　者：刘加凯[1] 齐杏林[1] 范志锋[1] 任亮亮[1,2] 

机构地区：[1]军械工程学院弹药工程系 [2]66352部队

出　　处：《探测与控制学报》2010年第4期42-47,共6页Journal of Detection & Control

摘　　要：为了研究温度应力对涡轮发电机的影响,对电机实施了高温步进强化试验。对4个电机样本统计分析表明,电机的高温工作极限为(145.7±9.8)℃,破坏极限为(162.9±16.5)℃,在试验过程中,电机存在的主要故障为输出电压随温度的升高呈抛物线规律下降,难以满足要求,涡轮叶片老化且在70 m/s吹风条件下叶片尾部折断。分析电机可恢复性故障的主要原因为转子中磁性材料的磁性能和线圈电阻随温度升高而变化,破坏性故障的主要原因为涡轮叶片折断和轴承的润滑性能下降,印证了试验中所发现的现象及规律。To study the thermal stress effects on fuze turbine alternator and find out the weak parts of it,the temperature step-stress enhancement test has been carried out.Statistical analysis on 4 sample alternators showed that the high operating limit temperature of turbine alternator was（145.7±9.8）℃,and the destructing limit temperature of it was（162.9±16.5）℃.In the process of test,the alternators＇main malfunctions were that the outputting voltage descended by a parabola with temperature increasing,and the outputting voltage did not satisfy the requirement.The turbine laminas became aging and their tails broke down when the alternators were flowed by wind at the speed of 70 m/s.The conclusion is that the recoverable failure of alternators was caused by the changing of magnet＇s magnetic properties and the resistance of loop with the increasing temperature,and the main reasons of destructing failure of alternators were the turbine laminas breaking and the descending of axletree lubricant performance.

关 键 词：引信 涡轮发电机 高温步进强化试验 故障分析 

分 类 号：TJ43[兵器科学与技术—火炮、自动武器与弹药工程]