Daniel Spescha: Catalogue data in Autumn Semester 2019 |
| Name | Mr Daniel Spescha |
| Address | Inst. f. Werkzeugmaschinen ETH Zürich, PFA E 82 Technoparkstrasse 1 8005 Zürich SWITZERLAND |
| Department | Mechanical and Process Engineering |
| Relationship | Lecturer |
| Number | Title | ECTS | Hours | Lecturers | |
|---|---|---|---|---|---|
| 151-0015-10L | Engineering Tool: Experimental Modal Analysis  All Engineering Tools courses are for MAVT Bachelor’s degree students only. Number of participants limited to 16. | 0.4 credits | 1K | D. Spescha | |
| Abstract | Measuring- and analysis-methods for the determination of transfer functions of mechanical structures. Evaluation and preparation of the measured data for visualisation and interpretation of the dynamic behaviour. | ||||
| Learning objective | Introduction into the practical application of measuring- and analysis-methods for determination of transfer functions of mechanical structures. Evaluation and preparation of the measured data for visualisation and interpretation of the dynamic behaviour. | ||||
| Content | Acquaintance with the acceleration- and force-sensors, measurement of transfer functions of mechanical structures, determination and description of modes of vibration by means of practical examples, introduction into the vibration theory and its fundamental terms, discrete oscillator. | ||||
| Lecture notes | yes, distribution in the course (CHF 20.-) | ||||
| Literature | David Ewins, Modal Testing: Theory and Practice | ||||
| Prerequisites / Notice | In the practical part of the course the participants self will make measurements on structures and then analyse them for eigenfrequencies and modes of vibrations. | ||||
| 151-0719-00L | Quality of Machine Tools - Dynamics and Metrology at Micro and Submicro Level | 4 credits | 2V + 1U | A. Günther, D. Spescha | |
| Abstract | The course "Machine tool metrolgy" deals with the principal design of machine tools, their spindles and linear axes, with possible geometric, kinematic, thermal and dynamic errrors of machine tools and testing these errors, with the influence of errors on the workpiece (error budgeting), with testing of drives and numerical control, as well as with checking the machine tool capability. | ||||
| Learning objective | Knowledge of - principal design of machine tools - errors of linear and rotational axes and of machine tools, - influence of errors on the workpiece (error budgeting) - dynamics of mechanical systems - geometric, kinematic, thermal, dynamic testing of machine tools - test uncertainty - machine tool capability | ||||
| Content | Metrology for production, machine tool metrology - basics, like principal machine tool design and machine tool coordinate system - principal design and errors of linear and rotaional axes - error budgeting, influence of machine errors on the workpiece - geometric and kinematic testing of machine tools - reversal ,easurement techniques, multi-dimensional machine tool metrology - thermal influences on machine tools and testing these influences - test uncertainty, simulation - dynamics of mechanical systems, dynamic error sources - machine tool dynamics and the engineering tools modal analysis and finite lement method (FEM) - testing of drives and numerical control - machine tool capability | ||||
| Lecture notes | Documents are provided during the course. English handouts available on request. | ||||
| Prerequisites / Notice | Exercises in the laboratories and with the machine tools of the institute for machine tools and manufacturing (IWF) provide the practical background for this course. | ||||