Investigation of an Axial Fan : Blade Stress and Vibration Due to Aerodynamic Pressure Field and Centrifugal Effects

スポンサーリンク

概要

• 論文の詳細を見る

• A 1.829m (6 ft) diameter industrial large flow-rate axial fan operated at 1770 rpm was studied experimentally in laboratory conditions. The flow characteristics on the fan blade surfaces were investigated by measuring the pressure distributions on the blade suction and pressure surfaces and the results were discussed by comparing with analytical formulations and CFD. Flow visualizations were also performed to validate the flow characteristics near the blade surface and it was demonstrated that the flow characteristics near the fan blade surface were dominated by the centrifugal force of the fan rotation which resulted in strong three-dimensional flows. The time-dependent pressure measurement showed that the pressure oscillations on the fan blade were significantly dominated by vortex shedding from the fan blades. It was further demonstrated that the pressure distributions during the fan start-up were highly unsteady, and the main frequency variation of the static pressure was much smaller than the fan rotational frequency. The time dependent pressure measurement when the fan operated at a constant speed showed that the magnitude of the blade pressure variation with time and the main variation frequency was much smaller than the fan rotational frequency. The pressure variations that were related to the vortex shedding were slightly smaller than the fan rotational frequency. The strain gages were used to measure the blade stress and the results were compared with FEA results.

• 一般社団法人日本機械学会の論文
• 2004-02-15

著者

• Xu Cheng

  Open Laboratory Of Ore Deposit Geochemistry Institute Of Geochemistry Chinese Academy Of Sciences

• Xu Cheng

  Department Of Aerospace & Mechanical Engineering And Materials Science University Of Southern Ca

• Xu Cheng

  Department Of Mechanical Engineering University Of Wisconsin-milwaukee

• Lee Eng

  Department Of Mechanical Engineering University Of Wisconsin-milwaukee

• AMANO Ryoichi

  Department of Mechanical Engineering, University of Wisconsin-Milwaukee

• Amano Ryoichi

  Department Of Mechanical Engineering University Of Wisconsin-milwaukee

• Amano Ryoichi

  Department Of Mechanical Engineering University Of Wisconsin--mi1waukee

関連論文

• Microstructural Evolution in Pure Aluminum in the Early Stages of Processing by High-Pressure Torsion
• Investigation of an Axial Fan : Blade Stress and Vibration Due to Aerodynamic Pressure Field and Centrifugal Effects
• Genesis of the carbonatite-syenite complex and REE deposit at Maoniuping, Sichuan Province, China : Evidence from Pb isotope geochemistry
• The geochemistry of lamprophyres in the Laowangzhai gold deposits, Yunnan Province, China : Implications for its characteristics of source region
• PGE geochemistry of carbonatites in Maoniuping REE deposit,Sichuan Province,China:Preliminary study
• TED-AJ03-115 FEASIBLE DOMAIN OF HIGH SPEED OPTICAL FIBER DRAWING
• Turbulence Effect on the Impinging Jet on a Flat Plate
• Experimental and Computational Investigation of Triple-rotating Blades in a Mower Deck

スポンサーリンク