Influence of Operating Parameters on Unbalance in Rotating Machinery Using Response Surface Method

• 作者: Ameya M.Mahadeshwar Sangram S.Patil Vikas M.Phalle Vishwadeep C.Handikherkar
• 来源期刊: 声音与振动(英文)
• 学科: 化学
• 关键词: MECHANICAL UNBALANCE RESPONSE surface method ROTATING MACHINERY ANOVA design of EXPERIMENTS
• 年，卷（期）: 2018,（5）
• 页码范围: 12-21
• 页数: 10页
• 分类号: O61

摘要

Wide range of rotating machinery contains an inherent amount of unbalance which leads to increase in the vibration level and related faults.In this work,the effect of different operating conditions viz.the unbalanced weight,radius,speed and position of the rotor disc on the unbalance in rotating machine are studied experimentally and analyzed by using Response Surface Methodology(RSM).RSM is a technique which consists of mathematical and statistical methods to develop the relationship between the inputs and outputs of a system by distinct functions.L27 Orthogonal Array(OA)was developed by using Design of Experiments(DOE)according to which experimentation has been carried out.Three accelerometer sensors were mounted to record the vibration responses(accelerations)in radially vertical,horizontal and axial directions.The responses recorded as root mean square values are then analysed using RSM.The relationship between response and operating factors has been established by developing a second order,non-linear mathematical model.Analysis of variance(ANOVA)has been performed for verification of the developed mathematical models.Results obtained from the analysis show that the unbalance weight and speed are most significant operating conditions that contribute the most to the effect the unbalance has on the rotating spindle.