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Vibration Control of Vertical Turbine Pump by Optimization of Vane Pitch Tolerances of an Impeller Using Statistical Techniques

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Sound & Vibration 2021年第4期55卷 305-327页

作者： Ravindra Birajdar appasaheb keste Shravan Gawande Kirloskar Brothers Limited Corporate R&DPune411045India Department of Mechanical Engineering MES College of EngineeringPune411001India

The objective of the study is to find the tolerance on vane pitch dimensions of a Vertical Turbine(VT)pump *** this purpose,the study is divided into two parts *** find the critical hydraulic eccentricity of a VT pump impeller by way of numerical simulations and design of experiments to find the vane pitch tolerance using critical hydraulic *** effect of impeller vane pitch deviations on hydraulic unbalance is examined for a vertical turbine pump using Design of Experiments(DOE).A suitable orthogonal matrix has been selected with vane pitch at different axial locations of an impeller as the control *** eccentricity,which is the output of the DOE experiments is analyzed using S/N ratio,ANOM and regression analysis to find the significant control factor effecting the hydraulic unbalance and hence *** vane pitch deviation at outlet and inlet of impeller shroud geometry are found to be the most critical factor affecting the pump vibrations.

关键词： Vertical turbine pump vibrations design of experiments hydraulic eccentricity

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Design Optimization of Shell and Tube Heat Exchanger by Vibration Analysis

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Modern Mechanical Engineering 2011年第1期1卷 6-11页

作者： S. H. Gawande A. A keste L. G Navale M. R Nandgaonkar V. J Sonawane U. B Ubarhande Department of Mechanical Engineering Modern Education Society’s College of Engineering Pune India

In this paper a simplified approach to optimize the design of Shell Tube Heat Exchanger [STHE] by flow induced vibration analysis [FVA] is presented. The vibration analysis of STHE helps in achieving optimization in design by prevention of tube failure caused due to flow induced vibration. The main reason for tube failure due to flow induced vibration is increased size of STHE. It is found that in case of increased size of STHE, the surface area and number of tubes increases, thus the understanding and analysis of vibration becomes a very difficult task. Again it is found that flow induced vibration analysis is considered as an integral part of mechanical & thermal design of STHE. The detailed design, fabrication, testing and analysis work was carried out at Alfa Laval (India), Ltd., Pune-10.

关键词： Heat Exchanger Flow-Induced Vibration TEMA HTRI

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