|Prof. Dr. Dennis Kochmann
|Dennis M. Kochmann
|Mechanics and Materials
Mechanik und Materialforschung
ETH Zürich, LEE N 201
|+41 44 632 32 76
|Mechanical and Process Engineering
|Swissloop ‐ Scaling to Reality
This course is part of a one-year course. The 14 credit points will be issued at the end of FS2023 with new enrolling for the same Focus Project in FS2023.
For MAVT BSc and ITET BSc only.
Prerequisites for the focus projects:
a. Basis examination successfully passed
b. Block 1 and 2 successfully passed
For enrollment, please contact the D-MAVT Student Administration.
|Students develop and build a product from A-Z! They work in teams and independently, learn to structure problems, to identify solutions, system analysis and simulations, as well as presentation and documentation techniques. They build the product with access to a machine shop and state of the art engineering tools (Matlab, Simulink, etc).
|The various objectives of the Focus Project are:
- Synthesizing and deepening the theoretical knowledge from the basic courses of the 1. - 4. semester
- Team organization, work in teams, increase of interpersonal skills
- Independence, initiative, independent learning of new topic contents
- Problem structuring, solution identification in indistinct problem definitions, searches of information
- System description and simulation
- Presentation methods, writing of a document
- Ability to make decisions, implementation skills
- Workshop and industrial contacts
- Learning and recess of special knowledge
- Control of most modern engineering tools (Matlab, Simulink, CAD, CAE, PDM)
|Vacuum Transport Seminar: Insights into Hyperloop Research
|The Vacuum Transport Seminar series enters its third round following the successful editions in spring and autumn semesters. It is held online via Zoom and offered internationally across a number of European Universities.The seminar was founded and is held by Swissloop and the EuroTube Foundation, and partnered by other European institutes.
|Students present their work in Hyperloop research. Additionally, industry experts contribute insight talks. The seminar is open to all students, everyone is welcome to join join at any of the dates.
About the seminar’s background:
Swissloop, the Hyperloop Team based at ETH Zürich, is pursuing long-term support for research and education in vacuum transport. In addition to the active team constructing and building a Hyperloop pod every year, various research projects at ETH are pursued in cooperation with EuroTube. The EuroTube Foundation accelerates the development of sustainable vacuum transportation technologies to provide publicly accessible research and testing infrastructures for universities and industry.
About Vacuum Transportation:
The demand for air transport has more than doubled in the last 20 years and is growing yearly by about 6.5%. Global demand for cargo and passenger transportation can barely be met today – let alone in a sustainable manner. Vacuum transport can replace short to medium distance flights and can significantly reduce CO2 emissions. The market of high-speed transportation is a global megatrend set to affect our lives in years to come.
|4V + 2U
|Dynamics of particles, rigid bodies and deformable bodies: Motion of a single particle, motion of systems of particles, 2D and 3D motion of rigid bodies, vibrations, waves
|This course provides Bachelor students of mechanical and civil engineering with fundamental knowledge of the kinematics and dynamics of mechanical systems. By studying the motion of a single particle, systems of particles, of rigid bodies and of deformable bodies, we introduce essential concepts such as kinematics, kinetics, work and energy, equations of motion, and forces and torques. Further topics include the stability of equilibria and vibrations as well as an introduction to the dynamics of deformable bodies and waves in elastic rods. Throughout the course, the basic principles and application-oriented examples presented in the lectures and weekly exercise sessions help students aquire a proficient background in engineering dynamics, learn and embrace problem-solving techniques for dynamical engineering problems, gain cross-disciplinary expertise (by linking concepts from, among others, mechanics, mathematics, and physics), and prepare students for advanced courses and work on engineering applications.
|1. Motion of a single particle: kinematics (trajectory, velocity, acceleration), forces and torques, constraints, active and reaction forces, balance of linear and angular momentum, work-energy balance, conservative systems, equations of motion.
2. Motion of systems of particles: internal and external forces, balance of linear and angular momentum, work-energy balance, rigid systems of particles, particle collisions, mass accretion/loss.
3. Motion of rigid bodies in 2D and 3D: kinematics (angular velocity, velocity and acceleration transfer, instantaneous center and axis of rotation), balance of linear and angular momentum, work-energy balance, angular momentum transport, inertial vs. moving reference frames, apparent forces, Euler equations.
4. Vibrations: Lagrange equations, concepts of stability, single-DOF oscillations (natural frequency, free-, damped-, and forced response), multi-DOF oscillations (natural frequencies, eigenmodes, free-, damped-, and forced response).
5. Introduction to waves and vibrations in deformable elastic bodies: local form of linear momentum balance, waves and vibrations in slender elastic rods.
|Lecture notes (a scriptum) will be available on Moodle. Students are strongly encouraged to take their own notes during class.
|A complete set of lecture notes (a scriptum) is available on Moodle. Further reading materials are suggested but not required for this class.
|Prerequisites / Notice
|All course materials (including lecture notes, exercise problems, etc.) are available on Moodle.
Only for MAS in Advanced Fundamentals of Mechatronics Engineering
|D. Kochmann, L. De Lorenzis
|This course introduces students to numerical methods commonly used in engineering with a focus on finite element (FE) analysis. Starting with finite differences and ending with static and dynamic FE problems, students will learn the fundamental concepts of finite elements as well as their implementation and application.
|To understand the concepts and application of numerical techniques for the solution of initial boundary value problems in solid and structural mechanics, particularly including the finite element (FE) method for static and dynamic problems. To understand the structure of FE codes and the right use of FE technology.
|Numerical methods and techniques for solving initial boundary value problems in engineering solid mechanics (heat conduction, static and dynamic mechanics problems of solids and structures). Finite
difference methods, indirect and direct techniques, variational methods, main focus on the finite element (FE) method, FE analysis in small strains for applications in structural mechanics and solid
|Typed lecture notes will be made available online.