The latter lies in an excessive pre-twisted angle of the originally designed blade shrouds,a relatively small fillet radius R at the blade shroud concave and improper assembly procedures.
采用静力学、动力学计算方法对某型工业燃气轮机低压涡轮带冠动叶掉角故障进行了分析,得出了叶冠产生掉角的主要原因是:原设计叶冠的预扭角过大、叶冠凹口处的转接R小及装配工艺不良所致。
Based on contact forms,a reasonable judgment can be given about structural design;based on contact parameters,the damping effects of blade shrouds are evaluated.
接触状态包括接触形式和接触参数,通过接触形式可从结构上判断结构设计的合理性,通过接触参数可从力学性能上评价叶冠的阻尼效果。
The stresses of LP turbine blades with different pre-twist shroud angles are calculated at aeroengine operating condition.
对在工作状态下的某型航空发动机叶冠不同预扭角的低压涡轮叶片应力进行了计算分析,给出了装配状态下叶冠阻尼面应力状态的计算分析方法。
By applying the harmonic balance method and time-frequency transfer method,the relationship between the shroud structural parameter and shroud mechanics performance at the installation was analyzed.
针对某工程的实际问题,建立了叶片三维分析模型,应用谐波平衡法和时频转换法,分析了叶冠结构参数与安装状态下叶冠力学性能的关系,总结了叶冠几何参数对接触状态的影响规律;就叶冠接触状态与叶冠磨损之间的关系进行了讨论;基于接触状态的设计理论,提出了叶冠预扭设计基本思想和工程方法。
Something, such as a lid or cap, that covers or forms an uppermost part.
盖，冠盖或形成最上面部分的东西，例如盖或帽子
The Design Pringiple and Key Point of Magnetic Force Turning Order Equipment for Crown Cap
磁力回转式王冠盖理盖器的设计原理及要点
The Formula Design for Interior Coating of Crown Caps and Its Properties Evaluation
皇冠盖内涂料的配方设计及性能评价
It is the right choice for every domestic beverage factory.
是国内各饮料厂清洗皇冠盖玻璃瓶的理想选择。
Peony stands out for fragrance.
牡丹香烟，醇味盖冠。
A crown for covering or sealing a tooth.
齿冠遮盖或密封牙齿的冠状物
To form the crown, top, or chief ornament of.
加顶,覆盖形成…的王冠、顶部或主要饰物
Crest--the nape of the neck.
脖冠。位于头盖骨后方脖子隆起的部位。
The part of a tooth that is covered by enamel and projects beyond the gum line.
齿冠露在牙床外面的、被釉质覆盖的那部分牙齿
The junction of the sagittal and coronal sutures at the top of the skull.
前囟头盖骨顶部矢状和冠状缝合处的接合处
Both root and root cap are covered by a sheath-like structure called the coleorhiza.
根和根冠被一鞘状结构，即胚根鞘所覆盖。
The Finite Element Analysis of Telescopic Coping Retained Mandibular Implant-Surpported Overdentures;
套筒冠式下颌种植覆盖义齿的三维有限元分析
The Preliminary Study of Whitecap Coverage Estimated from Routine Satellite Measurements over the Global Ocean;
由卫星资料反演全球白冠覆盖率的初步研究
Clinical observation on restoration of dentition defect with combined application of crown truncation and telescope crown retainer in patients with severe periodotitis
截冠术与套筒冠覆盖义齿联合应用修复重度牙周炎牙列缺损7例疗效观察
The Antarctica icecap is a thick layer of ice and snow that buries most of the continent.
南极洲的冰冠是由冰和雪组成的厚层，它覆盖了南极洲的大部分。
A Study on the Casting Technique of Fanghu with Dragon and Tiger design in the middle of Spring and Autumn Period;
中国最早“失镴法”春秋中期“蛇网盖冠龙虎方壶”的铸法论证
A three-demension finite elements analysis of the combined bar-attachment and telescope-crown attachment in mandibular implant-retained overdenture
套筒冠及杆卡附着体对种植覆盖义齿应力分布的影响比较
Immediate implant-support and overdenture retained by conical crowns:Three cases report
种植体支持套筒冠固位全口覆盖义齿即刻负重3例