Tolerance Analysis of Rotating Mechanical Systems in Presence of Dimensional and Geometrical Errors

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Fallahzadeh, Hamed | 2017

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 49844 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Khodaygan, Saeed
Abstract:
Because of increasing demands for using of rotating systems in high accuracy and high speed applications, in addition of specific condition of rotating systems, it is necessary to analysis these rotating systems characteristics. In addition to the dimensional and geometrical errors of mechanical system parts and assembly errors, manufacturing quality directly depends on Non Repetitive Run-Out (NRRO) errors; so the results of NRRO errors as an ultra-precision characteristic should be studied in required outputs. In this paper by analyzing dimensional and geometrical tolerances as tolerance zone, the variations of system outputs because of tolerances is calculated in both static and dynamic state. In analyzing, the Mont Carlo simulation based on normal distribution is used for determination of dimensions of parts. After calculations and tolerance analysis, sensitivity analysis of outputs of dynamic state (position variations of end section of shaft) in respect of tolerances will be done
Keywords:
Sensitivity Analysis ; Natural Frequency ; Tolerance Analysis ; Static Tolerance Analysis ; Dynamic Tolerance Analysis ; Nonrepetitive Run-Out (NRRO) ; Rotating System

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