摘要
本文分析了密封填料的粘弹特性，建立了反映其粘弹特性的力学模型；进一步探讨了密封填料在动态工作条件下粘弹特性的变化特征，得出了表征其密封可靠性的临界振动频率ω＿ｃ和最大相位滞后ｔｇφ＿（ｍａｘ），并对填料密封动态条件下的可靠性进行了分析。
he viscoelastic characteristics of gland packings wereanalysed,a mechanical model describing the viscoelasliccharactcristics was estabIlshed,the changing features of theviscoelastic characteristics of the giand packings in a by-namic working condition were further discussed.the criticalvibration frequency w_c which had an effect un seal reliabilityand the maximum phase retardation tgφ_(max),were dertved,and a reliability analysis was made of packing seal in a dy-namie condition.
出处
《化工机械》
CAS
北大核心
1995年第5期277-282,共6页
Chemical Engineering & Machinery
关键词
密封
填料
粘弹特性
密封性
Gland Packing,Viscoelastic Characteris-tie, Mechanic Model,Critical Vibration Frequency, Maxi-mum Phase Retardation, Reliability
