同时,指出了带箍叶盘振动的一些特点。
Some vibration feature of the Blisk with ring is pointed out.
整体叶盘是高推比航空发动机采用的新结构。
Blisk is a new integrated structure of blades and disk actually used in the aero-engine of high thrust-weight ratio.
建立了失谐叶盘系统单个扇区两自由度集中参数动力学模型。
A 2-dofs lumped-parameter kinetic model of single sector is built in a mistuned bladed-disk system.
该研究中采用的完整叶片转化方法是一种较好的改良叶盘转化法。
The method of whole leaf transformation for sweet potato in experiment is a promising improvement of leaf dish transformation method.
本文介绍了某高压涡轮整体叶盘破裂转速的计算方法和试验验证。
In this paper, the calculation method and experimental investigation of a HP turbine blisk burst speed has been introduced.
针对闭式整体叶盘通道开槽工艺问题,研究了叶盘通道五坐标开槽插铣加工方法。
With regard to the slot process of closed blisk, a 5-axis slot plunge milling method of closed blisk is studied.
通过农杆菌介导,采用叶盘法将豌豆凝集素基因转化单倍体烟草,获得了转基因再生植株。
The pea lectin gene was transformed into the haploid tobacco via Agrobacterium mediation using leaf disc method and the regenerated tobacco plants were obtained.
用农杆菌介导的叶盘法将HAL1基因转入模式植物烟草,对转基因烟草的耐盐性进行评价;
The HAL1 gene was transformed into tobacco by Agrobacterium through leaf disc transformation and the salt tolerance character of transgenic tobacco was analysised.
用农杆菌介导的叶盘转化法将一个来自棉花的谷胱甘肽s转移酶(GST)基因转化到烟草中。
A glutathione S-transferase (GST) gene from cotton was introduced into tobacco by Agrobacturium-mediated leaf disk transformation method.
提出在开式整体叶盘的粗加工阶段,采用插铣加工代替传统的五轴数控加工点铣和侧铣,实现高效加工。
At the stage of the rough machining of the open blisk. the plunge milling is presented in stead of the traditional 5-axis NC point milling and side milling for improving the machining efficiency.
通过叶盘叶片偏置面的直纹包络面逼近,确定叶盘通道粗加工区域,给出了四坐标插铣刀位轨迹生成算法。
The rough milling region of the open blisk tunnel is determined by generating the ruled envelope surface of the blades offset surface, and the algorithm.
在DEFORM3d有限元分析软件平台上,对高压压气机整体叶盘的锻压成形过程进行了模拟与分析。
The formation of vane-integrated disk used in high-pressure compressor of turbine engine is simulated and analyzed with the finite element method (FEM) on the platform of software DEFORM 3d.
为保证整体叶盘扭曲通道电解加工的顺利进行,提出了工具电极相对于工件的运动在全程中保持切向恒速的加工方式。
For guaranteeing the stability of blisk twisty tunnel in ECM, a process mode was presented, where the tangential velocity of cathode relative to workpiece kept steady in the whole process.
认为错频对振动应力的影响正比于其对振动位移(振幅)的影响,可以从系统最大位移的角度来评估叶盘转子失效的风险。
The relations between vibration stress and vibration displacement are direct ratio, so the venture of bladed-disk assemblies invalidation can be evaluated according tot…
剖析切削用量对于这一过程的影响,以达到预测和控制颤振的目的,为整体叶盘数控加工时颤振的在线监测和控制提供理论依据。
In order to predict and control vibration, we study the influence of cutting value on vibrations, so that theoretical basis is provided to detect and control vibration online in blisk NC machining.
研究结果表明:该方法能解决闭式整体叶盘通道插铣区域划分和直纹包络面生成问题,可有效实现闭式整体叶盘的五坐标开槽粗加工。
The results show that the channel region division and the ruled envelope surface generating can be solved by this approach, and the slot plunge milling of closed blisk can be achieved effectively.
这是常规系列铝制百叶窗的补充,带有一个可调节排气控制盘。
This is the Regular Series aluminum louver with an adjustable vent control added.
目前主要产品与:离合器,离合器总成,驱动盘,风叶,火花塞。
The main products with: clutch, clutch assembly, drive disk, blades, spark plugs.
同时考虑到实际生产上的因素,对压铸工艺和主要参数进行分析,从而达到对风叶传动盘的合理设计的要求,设计出相应的模具。
Some factors in the practical production were also considered, the die casting technology and main parameters were analyzed, consequently requirements of reasonable design of the fan blade transmissi…
同时考虑到实际生产上的因素,对压铸工艺和主要参数进行分析,从而达到对风叶传动盘的合理设计的要求,设计出相应的模具。
Some factors in the practical production were also considered, the die casting technology and main parameters were analyzed, consequently requirements of reasonable design of the fan blade transmissi…
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