Relevant bibliographies by topics / BLADE STRUCTURAL CHARACTERISTICS

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'BLADE STRUCTURAL CHARACTERISTICS'

Author: Grafiati
Published: 11 September 2023
Last updated: 31 July 2025

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Journal articles on the topic "BLADE STRUCTURAL CHARACTERISTICS"

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Li, Chaofeng, Shihua Zhou, Shuhua Yang, Xiang Ren, and Bangchun Wen. "Dynamic Characteristics of Blade-Disk-Rotor System with Structural Mistuned Features." Open Mechanical Engineering Journal 8, no. 1 (2014): 138–43. http://dx.doi.org/10.2174/1874155x20140501008.

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The finite element method is adopted to establish the dynamical models of blade, bladed disk and blades-diskshaft assemblies. Based on the analysis of mistuned structure and the dynamic characteristics of model in different levels, it gives the vibration mode distribution of different models. The research shows that the characteristics of the bladed disk and shaft have a huge difference, where some modes are caused by the strongly split and coupled vibration. The mistuned effects are likely to cause different coupled vibrations of blades between the blades-disk model and the blades-disk-shaft
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Xing, Zhitai, Yan Jia, Lei Zhang, et al. "Research on Wind Turbine Blade Damage Fault Diagnosis Based on GH Bladed." Journal of Marine Science and Engineering 11, no. 6 (2023): 1126. http://dx.doi.org/10.3390/jmse11061126.

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With the increasing installed capacity of wind turbines, ensuring the safe operation of wind turbines is of great significance. However, the failure of wind turbines is still a severe problem, especially as blade damage can cause serious harm. To detect blade damage in time and prevent the accumulation of microdamage of blades evolving into severe injury, a damage dataset based on GH Bladed simulation of blade damage is proposed. Then, based on the wavelet packet analysis theory method, the MATLAB software can automatically analyze and extract the energy characteristics of the signal to identi
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Xu, Lin, Wen Lei Sun, and An Wu. "Structural Properties Analysis of Composite Wind Turbine Blade." Key Engineering Materials 522 (August 2012): 602–5. http://dx.doi.org/10.4028/www.scientific.net/kem.522.602.

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In the process of wind turbine operation, the blade needs to withstand various kinds of loads. With wind turbine power kept getting bigger, the strength requirement of the blades become higher. In order to improve the strength of the blade, lots of new composite materials are use in blade material component parts. This paper studies the geometry laminated structure, external and structural characteristics of composite blade.
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Chetan, Mayank, Shulong Yao, and D. Todd Griffith. "Flutter behavior of highly flexible blades for two- and three-bladed wind turbines." Wind Energy Science 7, no. 4 (2022): 1731–51. http://dx.doi.org/10.5194/wes-7-1731-2022.

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Abstract. With the progression of novel design, material, and manufacturing technologies, the wind energy industry has successfully produced larger and larger wind turbine rotor blades while driving down the levelized cost of energy (LCOE). Though the benefits of larger turbine blades are appealing, larger blades are prone to aeroelastic instabilities due to their long, slender, highly flexible nature, and this effect is accentuated as rotors further grow in size. In addition to the trend of larger rotors, non-traditional rotor concepts are emerging including two-bladed rotors and downwind con
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Rogge, Timo, Ricarda Berger, Linus Pohle, Raimund Rolfes, and Jörg Wallaschek. "Efficient structural analysis of gas turbine blades." Aircraft Engineering and Aerospace Technology 90, no. 9 (2018): 1305–16. http://dx.doi.org/10.1108/aeat-05-2016-0085.

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Purpose The purpose of this study a fast procedure for the structural analysis of gas turbine blades in aircraft engines. In this connection, investigations on the behavior of gas turbine blades concentrate on the analysis and evaluation of starting dynamics and fatigue strength. Besides, the influence of structural mistuning on the vibration characteristics of the single blade is analyzed and discussed. Design/methodology/approach A basic computation cycle is generated from a flight profile to describe the operating history of the gas turbine blade properly. Within an approximation approach f
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Zhang, Yaqiong, Fubin Wang, Jinchao Liu, et al. "A Survey of Aero-Engine Blade Modeling and Dynamic Characteristics Analyses." Aerospace 11, no. 8 (2024): 638. http://dx.doi.org/10.3390/aerospace11080638.

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The rotating blade is a key component of an aero-engine, and its vibration characteristics have an important impact on the performance of the engine and are vital for condition monitoring. This paper reviews the research progress of blade dynamics, including three main aspects: modeling of blades, solution methods, and vibration characteristics. Firstly, three popular structural dynamics models for blades are reviewed, namely lumped-mass model, finite element model, and semi-analytical model. Then, the solution methods for the blade dynamics are comprehensively described. The advantages and li
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Krumbein, S., M. Jentzsch, J. Saverin, C. N. Nayeri, and C. O. Paschereit. "The Underwater Berlin Research Turbine: A Wind Turbine Model for Wake Investigations in a Water Towing Tank." Journal of Physics: Conference Series 2767, no. 4 (2024): 042011. http://dx.doi.org/10.1088/1742-6596/2767/4/042011.

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Abstract The design of a three-bladed horizontal axis research wind turbine for wake investigations is described. The turbine has a rotor diameter of 1.3 m and will be operated in a large water towing tank at a submergence depth of 2.5 m, yielding 3.3 % blockage. The test rig is configured to allow for underwater-stereo-particle-image-velocimetry measurements of the near and the far wake at chordwise Reynolds numbers approaching 700 000. The low-Reynolds number airfoil SG6040 is selected to constitute the rotor blades. Cavitation-free operation is assured by assigning a rated angle of attack o
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Mignolet, M. P., A. J. Rivas-Guerra, and J. P. Delor. "Identification of Mistuning Characteristics of Bladed Disks From Free Response Data—Part I." Journal of Engineering for Gas Turbines and Power 123, no. 2 (1999): 395–403. http://dx.doi.org/10.1115/1.1338949.

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The focus of the present two-part investigation is on the estimation of the dynamic properties, i.e., masses, stiffnesses, natural frequencies, mode shapes and their statistical distributions, of turbomachine blades to be used in the accurate prediction of the forced response of mistuned bladed disks. As input to this process, it is assumed that the lowest natural frequencies of the blades alone have been experimentally measured, for example, in a broach block test. Since the number of measurements is always less than the number of unknowns, this problem is indeterminate in nature. In this fir
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Petukhov, A. N., and F. D. Kiselev. "THE IMPACT OF STRESS CONCENTRATORS ON THE STRUCTURAL STRENGTH OF CAST TURBINE BLADES OF AIRCRAFT ENGINES." Industrial laboratory. Diagnostics of materials 85, no. 5 (2019): 52–66. http://dx.doi.org/10.26896/1028-6861-2019-85-5-52-66.

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Assessing of the quality parameters of the blade manufacture, which can affect their operational performance, is an important step in determining the causes of turbine blade destruction. Manufacturing defects, despite their great diversity, tend to be stress concentrators. Apart from the defects listed in the specifications to be avoided upon blade manufacturing, we mean also various kinds of defects identified as concentrators that contribute to the destruction of the blades in operation. Assessment of the blade quality suggests identification and analysis of the defects, as well as determina
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Aleshin, Mikhail, Aleksandr Smirnov, Margarita Murzina, and Yuri Boldyrev. "On Structural Optimization of The Propeller Blade." International Journal of Engineering & Technology 7, no. 4.36 (2018): 1203. http://dx.doi.org/10.14419/ijet.v7i4.36.28189.

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The results of the structural optimization of propeller blades are presented taking into account its composite structure and pitch change mechanism of the propeller and using FSI (Fluid-Structure Interaction) approaches. The optimality criterion of the problem is the propeller thrust with optimization parameters being the characteristics of the internal structure of the propeller blade made from a composite. Together with the optimization of the blade shape, the problem is considered which concerns the reduction of the deformations caused by loads occurring during the operation of the propelle
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Dissertations / Theses on the topic "BLADE STRUCTURAL CHARACTERISTICS"

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Heath, Steven. "A study of tip-timing measurement techniques for the determination of bladed-disk vibration characteristics." Thesis, Imperial College London, 1997. http://hdl.handle.net/10044/1/44221.

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All turbomachinery blades experience vibration under operating conditions. Given that theoretical tools are often limited in producing reliable quantitative predictions, most engine development certification programs still rely on contacting vibration measurements. The main objective of this research work is the development of robust and validated real-time data analysis procedures for vibration signals captured on rotating assemblies using non-contacting optical probes. This process is referred to as blade tip-timing and was broken down into two distinct steps, first, vibration parameter deri
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PIYUSH, RAJ. "INVESTIGATING THE SCALING EFFECTS ON BLADE STRUCTURAL CHARACTERISTICS OF WIND TURBINE USING CFD SIMULATION." Thesis, 2017. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16178.

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Wind turbines are used in a variety of applications with different performance requirements. Investigating the influence of scaling on wind turbine characteristics can pave the way to utilize the experience gained from a smaller turbine for a larger one. In this paper, the effects of wind turbine size on structural characteristics of a rotor blade are examined using CFD simulation. A GE’s 1.5 MW wind turbine was then chosen as a large turbine and a scaled down model of its rotor was simulated numerically. The results of the simulation were introduced to Similarity Theory relations
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Marsh, PJ. "The hydrodynamic and structural loading characteristics of straight and helical-bladed vertical axis tidal and current flow turbines." Thesis, 2015. https://eprints.utas.edu.au/23169/2/Marsh_whole_thesis_ex_pub_mat.pdf.

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Vertical axis cross flow tidal and current flow turbines are proposed to generate electrical energy from the ocean's kinetic energy, however little is known of their performance and loading characteristics. In this work, fixed pitch straight and helical-bladed vertical axis turbines were investigated using numerical simulation models to perform examinations of the influence of geometrical layout and rotational rate on power output, torque fluctuations, mounting forces, structural stress, and deflection magnitudes. These studies were conducted to establish the relative merits of various t
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Chen, Jyun-Yu, and 陳俊羽. "Combined Experimental and Numerical Study on the Flow Structure and Aerodynamic Characteristics of the Wavy Leading-edge Blade Applied on the VAWT." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/92sdgs.

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碩士<br>國立虎尾科技大學<br>飛機工程系航空與電子科技碩士班<br>105<br>Humpback whales utilize extremely mobile, wing-like flipper for banking and turning. The tubercles on the leading edge act as passive-flow control devices that improve performance and maneuverability of flipper. Theexperiment and 3-D numerical simulation are performed in this study to thoroughly investigate the flow structure and aerodynamic characteristics of 3-blade VAWT applyingthe designed wavy wing with different amplitude, wave lengthand aspect ratio, which is simulated from the tubercles flipper on humpback whales. For the static single blade
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Books on the topic "BLADE STRUCTURAL CHARACTERISTICS"

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Lake, Renee C. Experimental and analytical investigation of dynamic characteristics of extension-twist-coupled composite tubular spars. Langley Research Center, 1993.

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Book chapters on the topic "BLADE STRUCTURAL CHARACTERISTICS"

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Xie, Weiyi, Youfu Song, Yihong Chen, Xuewei Lu, Xiangjie Xiong, and Changli Liu. "Analysis of Excitation Force on Aeroengine Blisk Structure." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-97-7887-4_72.

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Abstract The aerodynamic forces acting on the surface of the turbine rotor blades are the main factor to affect their vibration characteristics, and the resonance of rotor blades can be determined and forced response analysis can be carried out based on the characteristics of aerodynamic excitation force. In the paper, the equivalent aerodynamic excitation forces on the surface of the rotor blade of a certain aeroengine blisk structure are extracted and analyzed, and then the frequency distribution of the excitation force and its variation with rotating speed are analyzed in the time and frequ
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Sydorenko, Ihor, Vladimir Tonkonogyi, Yuliia Babych, Yuliia Barchanova, and Zhang Yiheng. "Operating Characteristics of Lever-Blade Shock Absorbers with the Extended Mechanical Structure." In Advances in Design, Simulation and Manufacturing III. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-50491-5_10.

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Wang, Shengjun, Lianghua Xu, Wei Xiao, and Guoqing Liu. "Comparative Analysis of Vibration Characteristics Testing for Different Pumped Storage Power Station Plants." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4355-1_43.

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AbstractThe excitation force of the plant structural vibration of pumped storage power station mainly comes from hydraulic excitation, which is obviously related to the cascade combination formed by the number of runner blades and the number of movable guide vanes of the unit. The main frequency of the excitation force is closely related to the minimum pitch diameter number of the unit. The analysis of the vibration test data of the typical pumped storage power station plants showed that the structural vibration spectrum caused by the cascade combination unit with the minimum pitch diameter nu
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Lu, Xuxiang, Wenjun Huang, Luping Li, and Shuhong Huang. "Damping Vibration Characteristics of Frictional Damping Structure in Steam Turbine Integrally Shrouded Blades." In Challenges of Power Engineering and Environment. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-76694-0_57.

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Hu, Shan Shan, Ying Ning Hu, Cheng Yong Wang, and Chang Xiong Chen. "Vibration Characteristic Analysis of Diamond Saw Blade with Multitude Holes Structure for Vibration and Noise Reduction." In Advances in Grinding and Abrasive Technology XIV. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-459-6.78.

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Chaudhary, Abhishek, Amar Saraswat, and Renukalatha S. "ANALYSIS OF BLADE STRESS AND VIBRATION IN A WIND TURBINE (A NREL 5MW)." In 9th National Conference & Exhibition on Emerging and Innovative Trends in Engineering Technology (NCEEITET). IARS' Press Australia, 2023. https://doi.org/10.62431/jt2cnk97.

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Energy-efficient wind turbines with longer lifespans are needed. Current energy industry advances need this necessity. So, knowing how load conditions affect wind turbine functioning is crucial. This field studies steady-state stresses and deformations. 'The vibration characteristics of the NREL offshore 5-MW blade (HAWT)' were tested and studied (126 m). SOLIDWORKS created the 3D wind turbine blade model, which was exported to ANSYS/Workbench19 for finite element numerical simulation. The wind turbine blade was tested in a steady condition at its maximum rated power (12.1 rpm). This study gen
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Vorotović, Goran, Jela Vorotović, Nebojša Petrović, Nikola Davidović, Đorđe Novković, and Pavle Petrović. "Methodology for Composite Blades Testing: From UAVs to Mega-Large Structures." In Aeronautics - Characteristics and Emerging Technologies [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1006478.

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The use of composite rotor blades in the domains of micro-aircraft, aircraft for the transport of goods and passengers, for military purposes, as well as in the domain of wind turbines represents one of the most significant aspects in the problems of aerodynamics and energy efficiency, especially from the aspect of safety. The real use of composite blades whose traction-dynamic, lift, and thrust dynamic characteristics in real conditions of exploitation are directly dependent on complex loads of a static and dynamic nature requires a comprehensive laboratory analysis according to appropriate m
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Zhong, Yan, Haijun Feng, Yun Qiu, Guoping Li, and Changsheng Chen. "Numerical Prediction of Pressure Fluctuation Included by Propeller on Hull Surface." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2024. http://dx.doi.org/10.3233/faia231351.

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In this paper, the DDES delayed separated vortex model is used to simulate the propeller excitation force of a pod, and the three-dimensional vortex structure characteristics and the propeller induced excitation force characteristics under the coupling effect of the hull pod are obtained. The calculation results show that the main characteristic frequencies of the pressure fluctuation on the surface of the pod are axial frequency and blade frequency, and there are four times of axial frequency at some measuring points. The leading edge of the davit and the propeller jet will have a strong inte
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Kondratenko, Serhii, and Yurii Tkalych. "EXPEDIENCE OF USING SCORING ASSESSMENT OF QUALITY TRAITS IN LEAF LETTUCE BREEDING." In Traditional and innovative scientific research: domestic and foreign experience. Publishing House “Baltija Publishing”, 2024. http://dx.doi.org/10.30525/978-9934-26-436-8-7.

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A significant reserve for increasing the efficiency of mutational breeding of lettuce (Lactuca sativa L. var. secalina) is the use of score (code) scales to assess the characteristics of the manifestation of quality traits that cannot be determined in physical units of measurement. The purpose of the experimental work is to establish the effect of a mutagenic factor (γ-irradiation) on the formation of qualitative traits that determine the phenotype of the leaf blade and to study the correlation between their manifestation and the manifestation of selective value quantitative traits in the crea
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Ma, Jianlong, He Shen, and Wenfeng Guo. "Experimental Study on the Ultrasonic De-Icing Method of Wind Turbine Blades." In Wind Turbine Icing - Recent Advances in Icing Characteristics and Protection Technology [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.113305.

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Ice accretion on the wind turbine blade degrades the aerodynamic performance and power efficiency of wind turbines. Therefore, developing a high-efficiency de-icing method with low energy consumption is necessary to stabilize their operation in winter. Now, there are several types of de-icing methods being developed. Among these methods, ultrasonic de-icing method is suitable for wind turbines because of its low energy consumption, simple structure, and easy installation. In this chapter, the theoretical and experimental studies on ultrasonic de-icing of wind turbines are introduced. The de-ic
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Conference papers on the topic "BLADE STRUCTURAL CHARACTERISTICS"

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TURSUN, Gokhan, Betul ERGUL, and Yusuf ULU. "Evaluation of Rotor Structural Characteristics Based On Whirl Tower Tests." In Vertical Flight Society 70th Annual Forum & Technology Display. The Vertical Flight Society, 2014. http://dx.doi.org/10.4050/f-0070-2014-9645.

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Robust and reliable structural design necessitates numerous tests for rotor blades and rotor heads. The only way to be sure regarding analysis methods containing many assumptions and unknowns is to conduct dedicated tests simulating the operational case as close as possible. Within this context, a series of test activities have been planned so as to provide structural integrity verification of rotor system. In order to evaluate structural and aeromechanical performance of the rotor system, a Whirl Tower is designed and manufactured indigenously in TAI. In this study, an assessment on Whirl Tow
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Kee, Youngjung, and Sangjoon Shin. "Structural Dynamic Modeling for Rotating Blades Using Three-Dimensional Finite Elements." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10253.

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This paper deals with the development of an analysis model capable of analyzing the structural dynamic behavior of rotating composite blades. An eighteen node solid-shell finite elements were successfully used for the analysis of blade structures undergoing large deformation. The analysis model includes the effects of transverse shear deformation, Coriolis effect and elastic couplings due to the anisotropic material behavior. Incremental total-Lagrangian approach was adopted to allow estimation on arbitrarily large rotations and displacements. The equations of motion for the finite element mod
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Ali, Hamid, S. Sridhar, Naba Maiti, and M. Kumar. "Reduction of Structural Vibration on Light Combat Helicopter." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10163.

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This paper addresses the vibration issues which were accosted during the initial flight testing of the Light combat helicopter (LCH), 5.8 T weight class Attack helicopter designed and developed by Hindustan Aeronautics limited. The first one was high canopy shake in lateral direction at main rotor n/rev frequency and secondly the helicopter vertical vibrations at high speeds. Series of structural optimization and stiffening, based on the finite element analysis resulted in knocking out the canopy shake. Further these structural modifications along with the changes in blade dynamic characterist
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Ho, Jimmy, and Hyeonsoo Yeo. "Comparison of Calculated and Measured Blade Loads of the Tilt Rotor Aeroacoustic Model (TRAM)." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12053.

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In an effort to assess the suitability of the U. S. Army's Rotorcraft Comprehensive Analysis System (RCAS) for calculating tiltrotor aeromechanics characteristics, comparisons of rotor performance and blade loads between calculations and test data are presented for the TRAM rotor in helicopter mode at an advance ratio of 0.15. For rotor performance, the comparisons are with test points that form shaft angle sweeps for two different thrust levels. These calculations include those from a free vortex wake model and those from coupling the comprehensive analysis to a viscous vortex particle method
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Lorber, Peter, Brian Wallace, and Mark Scott. "Internal and Blade Surface Pressure Measurements of Centrifugal Flow Control on a Large Scale Rotor." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-11996.

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A large scale rotor test has been performed to evaluate concepts for improving the high thrust and high speed capabilities of an edgewise single rotor helicopter. The primary approach was to alleviate dynamic stall using centrifugally pumped steady blowing, referred to as Retreating Side Blowing (RSB). This concept was studied earlier for an airfoil with a flow control slot able to generate momentum coefficients of 0.03 to 0.05 using computational simulation and experiment. The current experiment uses a 28 ft diameter rotor having an inlet at the blade root, a hollow spar, and a series of flow
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Desmond, Michael, and Darris White. "Predictions of Structural Testing Characteristics for Wind Turbine Blades." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12288.

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Static and fatigue structural testing of wind turbine blades provides manufacturers with quantitative details in order to improve designs and meet certification requirements. Static testing entails applying extreme load cases through a combination of winches and weights to determine the ultimate strength of the blade while fatigue testing entails applying the operating design loads through forced hydraulics or resonant excitation systems over the life cycle of the blade to determine durability. Recently, considerable efforts have been put forth to characterize the reactions of wind turbine bla
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PIERRE, CHRISTOPHE, and DURBHA MURTHY. "Aeroelastic modal characteristics of mistuned blade assemblies - Mode localization and loss of eigenstructure." In 32nd Structures, Structural Dynamics, and Materials Conference. American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-1218.

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Min, James, Donald Harris, and Joseph Ting. "Advances in Ceramic Matrix Composite Blade Damping Characteristics for Aerospace Turbomachinery Applications." In 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-1784.

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Satish Kumar, Subramani, Ranjan Ganguli, Siddanagouda Basanagouda Kandagal, and Soumendu Jana. "Structural Dynamic Behavior of Axial Compressor Rotor." In ASME 2017 Gas Turbine India Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gtindia2017-4715.

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The vibrations involved in a typical axial compressor rotor in an aircraft engine are complex. Generally, the compressor blades are arranged in a cantilever type configuration. It is also known that the amplitude of vibration is highest near the tip section of the shroudless blade. Compressors are limited by aerodynamic instabilities such as rotating stall and surge. Rotating stall generally initiates near the tip region of the compressor. Blade vibrations coupled with aerodynamic instabilities will lead to a catastrophic scenario of flutter that is asynchronous to the rotor speed. This aeroel
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Liang, Daosen, Rui Zhang, Yulin Wu, Zichu Jia, Zhifu Cao, and Jianyao Yao. "High fidelity finite element model updating and deviation characterization method for geometric mistuned bladed disks." In GPPS Xi'an21. GPPS, 2022. http://dx.doi.org/10.33737/gpps21-tc-360.

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To accurately obtain the influence of geometric deviation on the vibration characters of the bladed disk. It is necessary to count the deviation characteristics of a large number of real bladed disks and establish the highfidelity structural analysis model. An automatic finite element model updating method of mistuned blade disks and characterization method of blade geometric deviation is proposed in this paper. The geometric mistuning blade finite element model is obtained by moving the finite element structured mesh nodes to the measured point cloud data. The proposed finite element model up
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