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1

Cruz, Décio Torres. "The literary discourse of Blade Rnner: film as a literary collage." Tradterm 13 (December 18, 2007): 261. http://dx.doi.org/10.11606/issn.2317-9511.tradterm.2007.48189.

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Este ensaio discute problemas teóricos envolvendo a relação entre filme e literatura a partir dos estágios iniciais dessa discussão. Também lida com o modo não só como a literatura toma de empréstimo o discurso do cinema, mas principalmente como o cinema se utiliza do discurso literário por meio da apropriação mútua de técnicas e através de um processo de tradução de diferentes meios. Cenas de <em>Blade Runner</em>, de Ridley Scott, serão usadas para ilustrar os argumentos desenvolvidos neste ensaio, ou seja, de que modo o filme traduz a tradição literária de Dante, Blake e Milton,
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2

Fowler, Jennifer. "Don't Blame Mrs Tchaikovsky!" Musical Times 134, no. 1804 (1993): 311. http://dx.doi.org/10.2307/1003047.

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3

Dobránszky, János, Attila Magasdi, and János Ginsztler. "Investigation of Notch Sensitivity and Blade Breakage of Bandsaw Blade Steels." Materials Science Forum 473-474 (January 2005): 79–84. http://dx.doi.org/10.4028/www.scientific.net/msf.473-474.79.

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Bandsaw blades are one of the most commonly used tools of the wood cutting industry. Their base materials are mostly unalloyed or poorly Cr-alloyed tool steels. After the review of the bandsaw blade’s cyclic load characteristics, we present the typical failures, which can be, originate in it’s cracking. With the use of these information an overall systematization has been set up by the bandsaw blade cracking types and its root causes. The main place of the failure is the weld and the heat-affected zone’s area where the welding can failure or the lack of toughness can produce cracking. An other
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4

Vignieri, S. "Miss mammoths? Blame your ancestors." Science 344, no. 6191 (2014): 1477–78. http://dx.doi.org/10.1126/science.344.6191.1477-f.

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5

Whittom, Francois, Olivier Desmeules-Roy, Fanny Bouchard, and Alain Steve Comtois. "Ice Hockey Players Skating Speed Improved By A Novel Material Skate Blade." Medicine & Science in Sports & Exercise 41 (May 2009): 127. http://dx.doi.org/10.1249/01.mss.0000353678.31614.8e.

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6

Crosby, Mark. ""A Fabricated Perjury": The [Mis]Trial of William Blake." Huntington Library Quarterly 72, no. 1 (2009): 29–47. http://dx.doi.org/10.1525/hlq.2009.72.1.29.

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7

Hu, Shan Shan, Li Ang He, Ying Ning Hu, and Cheng Yong Wang. "Failure Mechanism of Diamond Saw Blade Sawing Concrete." Materials Science Forum 1018 (January 2021): 169–76. http://dx.doi.org/10.4028/www.scientific.net/msf.1018.169.

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Sawing concrete with diamond saw blade is a complex process with alternating loading. However, due to the poor working conditions of the thin circular blade made of high manganese steel core, and the lack of research on its failure mechanism, a large number of used blade are abandoned every year in China and all over the world without steel core reused. Therefore, exploring the failure mechanism of diamond saw blade can improve the cutting quality and efficiency, and extend the service life of the saw blade. In this paper, the failure mechanism of diamond saw blade sawing concrete was analyzed
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8

Konstantinov, Alexander S., and Adelita M. Linzmeier. "Moss inhabiting flea beetles of the West Indies III: Erinaceialtica, a new genus from Hispaniola (Coleoptera, Chrysomelidae, Galerucinae, Alticini)." ZooKeys 955 (August 5, 2020): 113–45. http://dx.doi.org/10.3897/zookeys.955.53644.

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Erinaceialtica Konstantinov & Linzmeier, a new genus of moss inhabiting flea beetles, containing seven species from the Dominican Republic and Haiti is described and illustrated. Five species are new (E. gabbysalazarae, E. janestanleyae, E. rickstanleyi (the type species), E. rileyi, and E. thomasi) and two species are transferred from Aedmon: A. albicincta (Blake) and A. hugonis (Blake) comb. nov. The new genus is compared to Aedmon Clark, Apleuraltica Bechyne, Andersonaltica Linzmeier & Konstantinov, Distigmoptera Blake, and Ulrica Scherer. Keys to Erinaceialtica and related
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9

Wang, Yong Zhi, Feng Li, Xu Zhang, and Wei Min Zhang. "Composite Wind Turbine Blade Aerodynamic and Structural Integrated Design Optimization Based on RBF Meta-Model." Materials Science Forum 813 (March 2015): 10–18. http://dx.doi.org/10.4028/www.scientific.net/msf.813.10.

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An aerodynamic and structural integrated design optimization method of composite wind turbine blade based on multidisciplinary design optimization (MDO) is presented. The optimization aims to reduce the mass of blade under some constraints, including the power and deflection at the rated wind speed, and the strength and deflection under ultimate case. The design variables include parameters both in aerodynamic and structural disciplines. In order to keep the shape of blade smooth,the chord and twist distributions are controlled by the Bezier function in the optimization process. 3D parameteriz
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10

Stahl, Cody, Deborah King, Noelle Tuttle, et al. "Cross Validation Of A Figure Skating Blade Instrumented To Measure Figure Skating Impact Forces." Medicine & Science in Sports & Exercise 48 (May 2016): 284. http://dx.doi.org/10.1249/01.mss.0000485854.34394.53.

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11

Blanchard, Lydia. "Sons and Adversaries: Women in William Blake and D. H. Lawrence (review)." MFS Modern Fiction Studies 38, no. 2 (1992): 513–14. http://dx.doi.org/10.1353/mfs.0.1095.

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12

Cheng, Yun Yong, Kun Pu, Yuan Peng Liu, and Xin Bo Zhao. "A Virtual Cutting Based Method for Aero Engine Turbine Blade Reverse Modeling from Its Cone Beam CT Images." Materials Science Forum 532-533 (December 2006): 877–80. http://dx.doi.org/10.4028/www.scientific.net/msf.532-533.877.

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Turbine blade is one of the critical parts of the aero engine and usually has complex structures. The main purpose of this paper is to present a virtual cutting based method for aero engine turbine blade reverse modeling from its cone beam computed tomography (CBCT) images. Based on the turbine blade CBCT images, an improved Marching Cube algorithm was used to construct a 3D mesh model of the turbine blade. Then, cutting tools of parallel planes, concentric cylinders, concentric cones or revolved free form surfaces were used to cut the turbine blade mesh model to get the profile curves. After
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13

Zhan, Mei, He Yang, and Yue Lian Liu. "Research on Precision Forging Law of Complicated Blade by Using 3D FE Simulation and Physical Modeling." Materials Science Forum 471-472 (December 2004): 839–43. http://dx.doi.org/10.4028/www.scientific.net/msf.471-472.839.

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Research on precision forming laws of complicated blade has been a challenging issue on international frontiers of plastic forming areas. The precision forging laws of the blade with a damper platform have been obtained by using 3D FE simulation and physical modeling. The laws involve in the deforming characteristics of the tenon, damper platform, middle blade body, and tip blade body, such as the unevenness of deformation and material flow, the branch-flow of material, material flow characteristic of the blade body and rotation forming characteristic of the damper platform. The research may s
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14

Williams, Phillip B. "Blade Set to Tear Away the Good Flesh." Missouri Review 39, no. 1 (2016): 71–74. http://dx.doi.org/10.1353/mis.2016.0025.

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15

邬, 长乐. "Research on the Effect of Blade Geometrical Parameters on the Aerodynamic and Noise Characteristics of Inclined Trailing Edge Serrated Blade." Modeling and Simulation 09, no. 03 (2020): 274–84. http://dx.doi.org/10.12677/mos.2020.93028.

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16

Wei, Xin, Hui Yuan, Rui Wei Huang, and Shao Hui Lai. "Wear Characteristics of ID Saw Blade in Silicon Ingot Slicing Process." Materials Science Forum 532-533 (December 2006): 157–60. http://dx.doi.org/10.4028/www.scientific.net/msf.532-533.157.

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In this paper, the wear behavior of the ID (inner diameter) saw blade in the cutting process of silicon ingot was observed with SEM. Its wear mechanism was discussed and the relation between the blade wear and vibration, deflection was analyzed. The results show that the blade worn manners include flatted diamond, micro-fractured diamond, macro-fractured diamond, pulled-out hole, tortoise-fractured bond, and polished bond. In the abnormal working stage of a blade, however, the working surface of the blade is displayed mainly with pulled out diamond, flatted diamond, macro-fractured diamond gra
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17

Sepehri Amin, H., Ahmad Kermanpur, Saeed Ziaei-Rad, Hassan Farhangi, and M. Mosaddeghfar. "An Investigation on Failure Analysis of Titanium Gas Turbine Compressor Blades." Materials Science Forum 561-565 (October 2007): 2241–44. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.2241.

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Several premature failures were occurred in the high-pressure section of an industrial gas turbine compressor due to the fracture of Titanium blade roots. In this work, the failure process of the compressor blades was investigated based on the experimental characterisation. Macro/microfractographic studies were carried out on the fracture surfaces. Optical and scanning electron microscopy of the blade airfoil and root were performed. Mechanical properties of the blade alloy were also evaluated and compared with the standard specifications. The experimental results showed no metallurgical and m
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18

Yu, Hai Liang, Jin Wu Kang, and Tian You Huang. "Simulation and Control of Distortion of Hydro Turbine Blade Steel Casting in Heat Treatment Process." Materials Science Forum 706-709 (January 2012): 1580–85. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.1580.

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Blades are key part of hydro turbines, which often distorts during heat treatment process for their special structures. In this paper, thermal fluid finite element simulation of the forced air cooling process of a blade casting was carried out under a variety of distances between fans and blades, air speeds, groups of fans and circumstance temperatures. The temperature fields of blade castings were obtained. A novel parameter, temperature difference between surfaces of castings along thickness direction, was proposed to analyze the distortion of blade castings. The distortion behavior of blade
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19

Narayanan, M. Rajaram, and S. Nallusamy. "Analysis on Vibration Characteristics of Wind Turbine Blade to Improve the Effectiveness through CFD Developed by ANSYS." Materials Science Forum 937 (October 2018): 43–50. http://dx.doi.org/10.4028/www.scientific.net/msf.937.43.

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In the current scenario, there is a continuous need for increasing the efficiency of the aerodynamics of wind turbine blades through research studies. Vibration in a wind turbine blade has lot to do on its performance. An effective approach is required by wind mill including to control the vibration to achieve better results. The objective of this research is to investigate the vibration characteristics of the prototype horizontal axis wind turbine blade developed by using 3D modelling software. Shape memory alloys with their variable material properties offer an alternative adaptive mechanism
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20

Pournaras, C., V. Riziotis, and Antonios Kladas. "Wind Turbine Control Strategy Enabling Mechanical Stress Reduction Based on Dynamic Model Including Blade Oscillation Effects." Materials Science Forum 721 (June 2012): 293–98. http://dx.doi.org/10.4028/www.scientific.net/msf.721.293.

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The paper presents a coupled electrical aerodynamic model for a three blade wind-turbine dynamic analysis. The model is based on a blade element representation of the aerodynamic load part combined with an aeroelastic beam element for the dynamic analysis of a real rotor blade, including top tower acceleration. The model involves reduced computation time enabling to be applied in control system hardware. Such an analysis is very promising for obtaining controllers involving compromises among contradictory targets such as energy capture maximization and mechanical stresses reduction in the aero
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21

Chen, Yong, Viresh K. Wickramasinghe, and David G. Zimcik. "A Novel Smart Spring Concept for Helicopter Blade Vibration and Noise Suppression." Materials Science Forum 475-479 (January 2005): 2095–98. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.2095.

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This paper demonstrates the ability of the Smart Spring to suppress helicopter blade vibration through numerical simulation and experimental investigation. Mechanical shaker tests on a Bell-212 helicopter blade section verified the impedance control properties and the ability to suppress blade vibration using the Smart Spring proof-of-concept hardware. More importantly, the tests conducted in a wind tunnel proved the performance of the Smart Spring under highly varying unsteady excitation conditions. These tests confirmed that the Smart Spring system is able to actively suppress helicopter vib
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22

Liu, Yu Li, He Yang, and Tao Gao. "Effects of Friction on Precision Forging Process of Blade with a Damper Platform." Materials Science Forum 561-565 (October 2007): 831–34. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.831.

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A blade with a damper platform, with excellent anti-vibration characteristic and high efficiency, has become one of the most important types of blades being developed in the aeronautical engines. During the precision forging process of this blade, the friction between dies and workpiece has important effects on metal flow, deformation defects, load and energy etc. So researching the effects of friction conditions on the forging process of blade with a damper platform has been a crucial problem urgent to be resolved. In this paper, the precision forging process of titanium alloy blade with a da
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23

Xu, Qing Yan, Bai Cheng Liu, Zuo Jian Liang, Jia Rong Li, Shi Zhong Liu, and Ha Llong Yuan. "Modeling of Unidirectional Growth in a Single Crystal Turbine Blade Casting." Materials Science Forum 508 (March 2006): 111–16. http://dx.doi.org/10.4028/www.scientific.net/msf.508.111.

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Single crystal superalloy turbine blade are widely used in aero-engineering. However, there are often grain defects occurring during the fabrication of blade by casting. It is important to study the formation of microstructure related defects in turbine blades. Single crystal blade sample castings of a nickel-base superalloy were produced at different withdrawal rates by the directional solidification process and investment casting. There was a difference between the microstructure morphology at the top part of the turbine blade sample castings and the one at the bottom. Higher withdrawal rate
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24

Liu, Zhi Gang, Hou Jun Qi, and Yu Jun Cai. "Research on the Method of Error Prediction in Milling Thin-Walled Impeller Blade." Materials Science Forum 723 (June 2012): 124–29. http://dx.doi.org/10.4028/www.scientific.net/msf.723.124.

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The thin-walled blade of aero engine has low stiffness, during machining, it easily generates deflection due to the milling force, but because high accuracy of such component is required, the prediction of the deflection exactly becomes extremely important. Therefore, this paper analyzes the milling process, and simplifies it reasonably. The deformation of the blade is predicted based on ABAQUS using FEM, and then the machining deflection curves of the blade is got. The result is analyzed soon afterwards, and deflection law is summarized. Finally, an experiment has been designed. The reliabili
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25

Robillard, Julie M. "Who is to blame? Medical hype in the media." Movement Disorders 32, no. 10 (2017): 1345–47. http://dx.doi.org/10.1002/mds.26998.

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26

Miura, N., K. Nakata, M. Miyazaki, Y. Hayashi та Y. Kondo. "Morphology of γ' Precipitates in Second Stage High Pressure Turbine Blade of Single Crystal Nickel-Based Superalloy after Serviced". Materials Science Forum 638-642 (січень 2010): 2291–96. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.2291.

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The morphology of the ’ precipitates in the single crystal nickel-based superalloy serviced as the second stage high pressure turbine blade of the aircraft engine was examined. The aim of this work was to estimate the temperature and the stress distribution, and the stress direction of the blade in service. The blade was cut into three parts parallel to (001) plane at 8, 40 and 64mm from the tip. These parts were named as the tip, middle and root parts. Furthermore, these three parts were cut into six parts parallel to {100} which were almost normal to the surface from the leading to the trai
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27

LINZMEIER, ADELITA M., and ALEXANDER S. KONSTANTINOV. "Moss inhabiting flea beetles (Coleoptera: Chrysomelidae: Galerucinae: Alticini) of the West Indies II: Menudos, a new genus from Puerto Rico and description of methods to collect moss inhabiting flea beetles." Zootaxa 4786, no. 1 (2020): 1–22. http://dx.doi.org/10.11646/zootaxa.4786.1.1.

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Menudos Linzmeier & Konstantinov, a new genus of moss inhabiting flea beetles, containing five species, three of them are new (M. illariosus, M. maricao, and M. toronegro—the type species of the genus), from Puerto Rico is described and illustrated. The new genus is compared to Aedmon Clark, Apleuraltica Bechyne, Andersonaltica Linzmeier & Konstantinov, Distigmoptera Blake and Ulrica Scherer. Aedmon barberi (Blake, 1943b) and Distigmoptera chamorrae Konstantinov & Konstantinova, 2011 are transferred to Menudos. A key to Menudos species identification is provided. Methods for collec
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Cui, Jian Zhong, Hai Tao Zhang, and Yu Bo Zuo. "DC Casting of Large Sized Ingot of a High Strength 7xxx Alloy under the Influence of Electromagnetic Field." Materials Science Forum 765 (July 2013): 165–69. http://dx.doi.org/10.4028/www.scientific.net/msf.765.165.

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Hot tearing and cold cracks are major defects during direct chill (DC) casting of large sized ingots of high strength aluminium alloys. In order to solve these problems, based on a low frequency electromagnetic casting (LFEC) process, a new technology, electromagnetic casting with the application of an air blade (EMA) was developed. In the present work, this new technology was used to prepare large sized AA7055 aluminium alloy ingots and the effects of the low frequency electromagnetic field and the air blade on macro-physical fields, microstructure and cracking are studied by numerical and ex
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29

Han, S., and R. J. Goldstein. "Influence of Blade Leading Edge Geometry on Turbine Endwall Heat (Mass) Transfer." Journal of Turbomachinery 128, no. 4 (2005): 798–813. http://dx.doi.org/10.1115/1.2221326.

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The secondary flows, including passage and other vortices in a turbine cascade, cause significant aerodynamic losses and thermal gradients. Leading edge modification of the blade has drawn considerable attention as it has been shown to reduce the secondary flows. However, the heat transfer performance of a leading edge modified blade has not been investigated thoroughly. Since a fillet at the leading edge blade is reported to reduce the aerodynamic loss significantly, the naphthalene sublimation technique with a fillet geometry is used to study local heat (mass) transfer performance in a simul
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Srinivasan, V., and R. J. Goldstein. "Effect of Endwall Motion on Blade Tip Heat Transfer." Journal of Turbomachinery 125, no. 2 (2003): 267–73. http://dx.doi.org/10.1115/1.1554411.

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Local mass transfer measurements were conducted on the tip of a turbine blade in a five-blade linear cascade with a blade-centered configuration. The tip clearance levels ranged from 0.6 to 6.9% of blade chord. The effect of relative motion between the casing and the blade tip was simulated using a moving endwall made of neoprene mounted on the top of the wind tunnel. Data were obtained for a single Reynolds number of 2.7×105 based on cascade exit velocity and blade chord. Pressure measurements indicate that the effect of endwall motion on blade loading at a clearance of 0.6% of blade chord is
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31

Bradley, Peter. "MPs blame NHS stress on staff shortages." British Journal of Healthcare Assistants 15, no. 6 (2021): 310. http://dx.doi.org/10.12968/bjha.2021.15.6.310.

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32

Wang, Xiao, Xiao Bo Fan, and Hui Xia Liu. "Research on Cold Taper-Rolling Law of the Spiral Blade Based on Finite Element Method." Materials Science Forum 575-578 (April 2008): 305–10. http://dx.doi.org/10.4028/www.scientific.net/msf.575-578.305.

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The taper-rolling model, the elastic-plastic constitutive equations with limited deformation conditions, and FEM model for the cold rolling process of spiral blade are established. The FEM software SUPERFORM based on elastic-plastic theory is adopted to simulate the spiral blade forming process for the first time. The influence of different parameters (feeding height H, adjusting parameter of the working pressure 1 S , translation slip S2 , elastic angle θ , workpiece material and friction coefficient) on the shape of spiral blade are simulated and analyzed systematically. And the law of the f
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33

Avila-Davila, Erika O., Victor M. Lopez-Hirata, Maribel L. Saucedo-Muñoz, et al. "Study of Mechanical Degradation and Microstructural Characterization in a Ni-Based Superalloy Component of a Gas Turbine." Materials Science Forum 941 (December 2018): 1248–53. http://dx.doi.org/10.4028/www.scientific.net/msf.941.1248.

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The microstructural characterization of a blade made of Ni-based superalloy was carried out and discussed. The blade was removed from service, of a gas turbine, due to preventive maintenance. This component was studied on different cross sections according to the surface temperature obtained by ANSYS software. The cross sections were characterized by Optical Microscopy (OM), Scanning Electron Microscopy (SEM) and High Resolution Scanning Electron Microscopy (HR-SEM). It was determined that the maximum value of total deformation is 0.001717 mm, located in the surface upper section of the blade,
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34

Savu, Tom. "Data Processing for Ship Screw Propellers Measurements." Materials Science Forum 957 (June 2019): 239–46. http://dx.doi.org/10.4028/www.scientific.net/msf.957.239.

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A data acquisition system was developed for measuring standardised ship propeller’s parameters. The hardware consists of two linear and one rotary encoder, all sending the data to a counter/timer data acquisition board. The software is first aligning the different coordinates systems of the propeller and of the three encoders . Data processing is initially performed for compensating the effects of different encoders’ resolutions. There are then computed the blade profile’s length and the coordinates of the points belonging to the blades’ reference lines, together with the local pitch variation
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Wan, Yi, Zhi Xin Wu, Yu Wang, and Zhan Qiang Liu. "Turbine Blade Distortion Analysis during Spiral NC Milling Based on FEM." Materials Science Forum 723 (June 2012): 143–47. http://dx.doi.org/10.4028/www.scientific.net/msf.723.143.

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Turbine blade plays an important role in aero engine and power generation equipment. As thin-walled and free-form surface component, deflection in spiral milling of turbine blade is common, which result in bad dimensional precision. In this paper, a five-axis milling experiment was firstly conducted to get the cutting force components. Then, deflections were studied at different positions. The results show that compensation can be made based on the FEM analysis.
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Lv, Cheng, Li Wen Zhang, Zhao Kun Wang, Qu Ying Zheng, and Dan Wang. "3D Rigid-Viscoplastic FEM Simulation of Forging Process of a Gas Turbine Rotor Blade." Materials Science Forum 532-533 (December 2006): 733–36. http://dx.doi.org/10.4028/www.scientific.net/msf.532-533.733.

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Analysis of the forging of gas turbine rotor blades is a complex operation because of the complicated three-dimensional geometry and the non-steady state contact between the workpiece and the die surface. As a result, the simulation of blade forging performed so far has been restricted to two-dimensional plane-strain problems or simplified three-dimensional deformational cases throughout which some simplifications and assumptions are employed. In this paper a three-dimensional analysis of the non-isothermal multi-stage forging process of a gas turbine rotor blade from a cylindrical billet to a
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37

Wang, Pei, Na Min Xiao, Dian Zhong Li, and Yi Yi Li. "Numerical Simulation of Deformation during Hot Procedure for Large Hydraulic Turbine Runner Blade." Materials Science Forum 654-656 (June 2010): 1565–69. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.1565.

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Francis hydraulic turbine runner blade has a complex profile, which always causes severe and unpredictable deformation during the hot procedure. In this paper, an integral finite element method model based on ProCast software was developed to simulate the deformation of the blade during the whole hot procedure including casting, shake-out, cutting-off the gating system and heat treatment. And the model predictions were validated by the experimental measurements. Based on the predictions some inverse displacements were added to the initial mould. Finally a huge hydraulic turbine runner blade wi
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Gao, Jian, Bao Hai Wu, and Ying Zhang. "The Adaptive Machining of the Leading and Trailing Edges of Precision Forging Blades Based on the On-Machine Measurement." Materials Science Forum 836-837 (January 2016): 562–69. http://dx.doi.org/10.4028/www.scientific.net/msf.836-837.562.

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Blades are important components of aviation-engine, with complex shape and high precision machining. The radius of curvature of the leading and trailing edges of the precision forging blades is small and the curvature changes fast. In this paper, the adaptive machining scheme about the leading/trailing edge of the precision forging blade is proposed. Firstly, the measurement model based on theoretical model of the blade is established. Secondly, according to the measurement model, the measurement path planning is proposed. Thirdly, measurement data processing and registration, then blade model
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Yang, Li Feng, Shu Ren Zhang, W. N. Liu, Yu Yang, and Y. J. Zhang. "Application ANSYS CFX in Modeling Turbine Blade." Materials Science Forum 626-627 (August 2009): 593–98. http://dx.doi.org/10.4028/www.scientific.net/msf.626-627.593.

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The main component of turbine is made up of stator and rotor, w hose function is to transform liquid energy in to mechanical energy on the main shaft. ANSYS CFX-BladeGen is applied to model turbine , ANSYS CFX-TurboGrid is applied to create a mesh for an turbine blade and then numerical simulation calculation on the obtained model is conducted. In the fact, the result of the above calculation indicates that ANSYS CFX BladeGen is more convenient and swift to fulfill the modeling request of turbine blade. When the performance of the turbine blade is achieved, these blades’ geometric data can be
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Chen, Jia Hao, Jin Shan Li, Bin Tang, Li Hua Du, and Hong Chao Kou. "Numerical Simulation of Hot Die Forging Process of Ti-6Al-4V Alloy Blade." Materials Science Forum 898 (June 2017): 1325–31. http://dx.doi.org/10.4028/www.scientific.net/msf.898.1325.

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Ti-6Al-4V alloy is used extensively in aerospace industries due to its excellent properties. In this paper, the hot die forging process of the Ti-6Al-4V alloy blade was simulated by using 3D finite element method. Based on the model, the effect of process parameters on the deformation was investigated. The results show that the increase of temperature is beneficial to improving the uniformity of stress distribution. The slower the declining velocity of upper die is, the larger the strain gradient of severe deformation area will be. In addition, the stress distribution gets uniform with velocit
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AHN, Sang Ho, and Jun Hwan JANG. "The structural optimum design of laminated slender beam section with arbitrary material distribution using a genetic algorithm." INCAS BULLETIN 11, no. 1 (2019): 7–20. http://dx.doi.org/10.13111/2066-8201.2019.11.1.1.

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In this paper, a study on optimum design methodology of a section structure of a composite material rotor blade using genetic algorithm is conducted, in order to calculate repetitive optimum design, analysis of strength, fatigue and vibration on blade section. In the analysis, the minimum mass of the rotor blade was defined as objective function; stress damage index, center of mass on blade section and fatigue life of blade were set as constraints. By applying genetic algorithm, laminate angle and thickness of skin, thickness, location and width of torsion box were established as design variab
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Wu, Fei, Jie Wu, Mei Jin, Fang Wang, and Ping Lu. "Influence of Gas-Liquid Distribution Inducer on Mass Transfer Coefficient in Rotating Packed Bed." Advanced Materials Research 908 (March 2014): 277–81. http://dx.doi.org/10.4028/www.scientific.net/amr.908.277.

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Based on acetone-H2O system, the influence of the gas-liquid distribution inducer on the mass transfer coefficient in the rotating packed bed with the stainless steel packing was investigated. Furthermore, the absorption performance was also obtained under the experimental condition of the rotational speed of 630 rpm, the gas flow rate of 2 m3/h and the liquid flow rate of 100 L/h in the rotating packed bed with different types and different installation ways of the distribution inducer. The experimental results showed that the volumetric mass transfer coefficient Kyα per unit contact length o
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43

Wood, Paul, Muhammad Jawad Qarni, Paul L. Blackwell, et al. "Modeling the Super Plastic Forming of a Multi-Sheet Diffusion Bonded Titanium Alloy Demonstrator Fan Blade." Materials Science Forum 735 (December 2012): 215–23. http://dx.doi.org/10.4028/www.scientific.net/msf.735.215.

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The paper describes a finite element method in 2D and 3D to simulate the super plastic forming of a demonstrator jet engine fan blade made from Titanium alloy sheet. The fan blade is an assembly of three sheets in which a single inner (core) sheet is diffusion bonded to the two outer (skin) sheets at prescribed zones, which is then super-plastically formed to a desired fan profile. In the model, the diffusion bonded zones between the core and skin sheets are simulated using tied interfaces. The thickness of each skin sheet is not uniform and significant change in thickness can occur over a sho
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Bir, Gunjit S. "Computerized Method for Preliminary Structural Design of Composite Wind Turbine Blades." Journal of Solar Energy Engineering 123, no. 4 (2001): 372–81. http://dx.doi.org/10.1115/1.1413217.

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A computerized method has been developed to aid preliminary design of composite wind turbine blades. The method allows for arbitrary specification of the chord, twist, and airfoil geometry along the blade and an arbitrary number of shear webs. Given the blade external geometry description and its design load distribution, the Fortran code uses ultimate-strength and buckling-resistance criteria to compute the design thickness of load-bearing composite laminates. The code also includes an analysis option to obtain blade properties if a composite laminates schedule is prescribed. These properties
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Wang, Haifeng, Bo Hu, Wenjing Song, Lin Quan, and Xingmao Jiang. "Self-assembled 3D architectures of blade-shaped hierarchical hollow microspheres from cristobalite nanosheets with exposed (101) facets." CrystEngComm 19, no. 32 (2017): 4700–4703. http://dx.doi.org/10.1039/c7ce01242j.

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Qi, G. X., Rui Bin Mei, F. Wang, and L. Bao. "A Numerical Simulation of Microstructure Evolution of GH4169 Alloy Blade during Finish Forging." Materials Science Forum 704-705 (December 2011): 113–18. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.113.

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In order to predict the microstructure evolution and grain size of GH4169 alloy blade in finish forging process and optimize the parameters, a coupled simulation between thermal mechanical and microstructure evolution was realized through embedding the developed user subroutines into the DEFORM-3D software. The temperature, equivalent strain, dynamic recrystallization fraction, average grain size and grain size distribution were predicted and discussed. The experimental results of microstructure under the same forging condition were investigated. The average grain degree in the blade rabbet an
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Zhai, Yuan Sheng, Xian Li Liu, and Bao Tao Wang. "Finite Element Simulation on Tool Strength of Rough Turning Cylinder." Materials Science Forum 800-801 (July 2014): 316–20. http://dx.doi.org/10.4028/www.scientific.net/msf.800-801.316.

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In this paper, numerical simulation method is used to study the turning tool strength by Deform 3D in the process of rough machining high strength steel (2.25Cr-1Mo-0.25V).It mainly studies the effect of the feed rate on the cutting force. At the same time, non-uniform distribution cutting force got from the simulation results is taken as the numerical simulation mechanical load of turning tool blade strength to study the influence of feed rate on the turning tool strength. The simulation results show that: with the feed increasing, the mechanical load that turning tool blade bears increases.
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Kielb, R. E. "Mass Balancing of Hollow Fan Blades." Journal of Engineering for Gas Turbines and Power 108, no. 4 (1986): 577–82. http://dx.doi.org/10.1115/1.3239950.

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This paper uses a typical section model to investigate analytically the effect of mass balancing as applied to hollow, supersonic fan blades. A procedure to determine the best configuration of an internal balancing mass to provide flutter alleviation is developed. This procedure is applied to a typical supersonic shroudless fan blade which is unstable both in the solid configuration and when it is hollow with no balancing mass. The addition of an optimized balancing mass is shown to stabilize the blade at the design condition.
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Chen, Ping-Hei, and Jr-Ming Miao. "Effect of Upstream Wake on Shower-Head Film Cooling." International Journal of Rotating Machinery 2, no. 4 (1996): 269–80. http://dx.doi.org/10.1155/s1023621x96000140.

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The present study aims to investigate the effect of an upstream wake on the convective transport phenomena over a turbine blade with shower-head film cooling. A naphthalene sublimation technique was implemented to obtain the detailed mass transfer distributions on both suction and pressure surfaces of the test blade. All mass transfer runs were conducted on a blowing-type wind tunnel with a six-blade linear cascade. The leading edge of the test blade was drilled with three rows of equally spaced injection holes. The upstream wake was simulated by a circular bar with the same diameter as that o
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Chaijit, Seksan, Yoshikazu Yajima, Kazuya Kikuchi, Shigeru Nagasawa, Yasushi Fukuzawa, and Akira Hine. "Deformation Characteristics on Surface Layer of White-Coated Paperboard by Center Bevel Blade Subjected to Pushing Load." Materials Science Forum 594 (August 2008): 39–44. http://dx.doi.org/10.4028/www.scientific.net/msf.594.39.

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This paper describes for breaking behaviors on the surface layer of a white-coated paperboard during indentation of a center bevel blade. Cutting load response of the paperboard was measured regarding the indentation depth of the blade and the deformation flow in a side view of the paperboard was observed by a CCD camera in order to investigate the effect of blade tip angle on the surface failures of the paperboard. The surface breaking strength of paperboard was analyzed by using Finite Element Method (FEM). Through the experiment and FEM simulation, the followings were revealed. 1) There is
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