摘要
设计制造了“W ndef 288型”螺旋槽干运行非接触气体密封(线速度111,4 m/s、温度110℃),并进行了动态与稳定性分析、特别是角向半频自激振动及共振振荡的理论分析。工业模拟运行了近3 000 h(100余次起停),上万的测试数据表明了其优异的性能。
Spiral groove dry running non-contacting gas seals named after ' WAndef 288 type' is designed and manufactured. Its angular wobbly self-excited whirl with 'half-frequency' and the gas film resonant whip is analyzed. The commercial DOS is tested for 3 000 h nearly(to start-up and stop for 100 time), Its property is excellent by description of experimental investigation data.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2003年第4期124-127,共4页
Journal of Mechanical Engineering
基金
辽宁省科学技术厅科学技术计划(99 303017)
沈阳市科学技术局科学技术计划(98 303 30111/40411
1999 31002-01/02)资助项目
关键词
螺旋槽密封
稳定性
半频自激振动
气膜振荡
非接触气体密封
Spiral groove dry running gas seals Stability Self-excited whirl with 'half-frequency' Gas film resonant whip
