1) rim sealing
轮缘封严
1.
However,there are many difficulties in measurements such as light path arrangements due to the narrow space in a rim sealing.
针对轮缘封严内空间狭窄、光路安排困难等问题,本文发展了一种用于测量涡轮级轮缘封严内非定常流场的准三维LDV技术,即测量分两步,首先在机匣上安置二维测速系统用符合方式测出径向、切向速度及湍流度,再在轮毂内安置一维探头重复测量,从两次测量数据中计算出轴向速度;该技术借助锁相采样等技术能测出不同动静叶相对位置情况下封严及盘腔内的周期性非定常流场细节,本文给出了部分典型的动态流场测量结果。
2) seal
[英][si:l] [美][sil]
封严
1.
<Abstrcat>The standard k-ε turbulence model and RNG k-ε turbulence model were employed to compute the flow characteristics of the labyrinth sealing in the given reference.
对4道、7道环型直通式篦齿,在转静状态下采用非结构化网格和SIMPLE算法,求解了不同转速的速度场和压力场;并试验研究了不同转速、齿数工况的封严效果,探讨了篦齿前后压比与泄漏系数的变化关系。
2.
In order to improve the performance of the seal labyrinth in aeroengine, many characteristic structures are applied to the seal.
对发动机中封严篦齿进行了相关齿形的变化 ,建立了 8种封严结构模型 ,运用 RNG k～ ε湍流模型、非结构化网格和 SIMPLE算法来模拟封严篦齿流动问题。
4) Sealing coating
封严涂层
1.
The structure, ingredient and property of wear-resisting and sealing coating are studied by many methods.
采用多种手段对俄罗斯航天发动机静止摩擦环耐磨及封严涂层进行了组织形貌、成分及性能等方面的实物分析，认为该涂层是以Ａｌ２Ｏ３陶瓷为主的高质量的梯度功能涂层，并对原件制造工艺进行了初步分析。
5) brush seal
刷式封严
1.
A porous medium model for simulating leakage flows through brush seals;
模拟刷式封严泄漏流动的多孔介质模型
2.
The brush seal is a new seal technology which developed since the early 1980’s.
刷式封严是20世纪80年代发展起来的新式密封技术,与传统的篦齿封严相比,它不仅能适应转子的跳动和膨胀,同时还具有泄漏水平低的优点,因此在航空发动机以及地面涡轮中都得到了日益广泛的应用。
6) labyrinth gas seals
篦齿封严
1.
The response calculation of labyrinth gas seals with damping sleeve is done by the time-frequency transition method,which includes of the merits of harmonic balance method,dynamic softness method and tracking motion method.
研究在单点激振情况下阻尼套筒对篦齿封严结构的减振规律。
2.
This paper has a vibration analysis for the labyrinth gas seals with damping sleeve by wave transmittal technique.
本文采用群论算法对带阻尼套筒的篦齿封严结构进行振动特性的计算分析,利用带阻尼套筒的篦齿封严结构循环对称的特点,把特征值约化到一个重复扇区进行分析,并借助有限元商用程序ANSYS进行特征值求解。
3.
It has happened so many times that the problem of structure-acoustic of labyrinth gas seals when engine is working.
篦齿封严结构是一种高效的非接触式密封装置,广泛地应用于航空燃气涡轮发动机等叶轮机械中。
补充资料：严诫宿缘经
【严诫宿缘经】
（经名）兴起行经之异名。
（经名）兴起行经之异名。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条