Automotive Engineering

CAD 2

Integrated course, 4.00 ECTS

 

Course content

The lecture „CAx2“ is splitted into two sections, the so called „practice section“ and the “project work section”.
The „practice section“ is based on the knowledge and engineering experience gained in the „practice section“ of “CAx1”. Here the CATIA V5 work environments “sketcher”, “wireframe and surface design”, “part and assembly design” as well as “drafting” and “structural analysis” are used at a higher level of complexity for sophisticated design examples. The course contains in-depth discussion of modelling strategies and design procedures linked to complex parts and assemblies with practical suggestions where applicable.
In the „project work section“ the knowledge and engineering experience gained in previous courses of the bachelor-program needs to be combined and applied in a substantial design task in project setup. Students work in groups of three to five people in three to five different project topics in form of an engineering competition.

A selection of project topics in the last years:
- Development of a steering column with direction change for a Formula Student vehicle
- Development of a “1/4- Vehicle Testbed” for kinematics and compliance investigations of a FS suspension system
- Development of a brake testbed
- Development of a 3- engined gearbox testbed
- Development of a damper testing system to determine damper characteristics of passenger cars

The workflow depends on the project content. Typically workpackages contain the following elements:
- Analysis of the customer requirements (virtual but as customer project relevant as possible)
- Definition of the system requirements specification
- Concept development and selection based on decision matrices
- Calculation of main design features (e.g. load cases, critical crosssections, bearings, gear wheels...)
- FEM-analysis
- CAD design of a part and assembly model, detail design in CATIA V5
- Derivation of 2D drawings for manufacturing
- Project reporting and summary of results
- Presentation of results in front of the other students

Learning outcomes

Upon successful completion of the course students should be able to
- structure and manage a simple project workflow independently
- apply engineering methods for dimensioning of parts and finding tailored design solutions
- work independently and professionally with CATIA V5 in modelling complex parts and assemblies and deriving manufacturing drawings and FEM analysis.
- document the results achieved in form of a technical report
- present their results

Recommended or required reading and other learning resources / tools

FRISCHHERZ, Adolf; SEMRAD, Karl: Technisches Zeichnen : Fachzeichnen Teil 1. Wien : Jugend & Volk, 2017
FRISCHHERZ, Adolf; SEMRAD, Karl: Technisches Zeichnen : Fachzeichnen Teil 2. Wien : Jugend & Volk, 2017
HINTZEN H. et al.: Konstruieren und Gestalten. 3. Aufl., Braunschweig: Vieweg 1989
HORNBOGEN, Erhard; EGGELER, Gunther; WERNER, Ewald: Werkstoffe : Aufbau und Eigenschaften von Keramik-, Metall-, Polymer- und Verbundwerkstoffen. Berlin Heidelberg : Springer-Verlag, 2012
KOLLER R., KASTRUP N.: Prinziplösungen zur Konstruktion technischer Produkte, 2.Aufl., Berlin Springer-Verlag, 1998
LABISCH Susanna; WEBER Christian: Technisches Zeichnen : Selbstständig lernen und effektiv üben. Wiesbaden : Springer Vieweg, 2014
REIF, Konrad: Sensoren im Kraftfahrzeug. Wiesbaden : Vieweg+Teubner, 2012
PAHL G., BIETZ W.: Konstruktionslehre, Methoden und Anwendung. 3. Aufl., Berlin: Springer-Verlag 1993
TRZESNIOWSKI, Michael: CAD mit CATIA V5 : Handbuch mit praktischen Konstruktionsbeispielen aus dem Bereich Fahrzeugtechnik. Wiesbaden : Vieweg+Teubner, 2011
TRZESNIOWSKI, Michael: Handbuch Rennwagentechnik. Wiesbaden : Springer Vieweg, 2017
WITTEL, Herbert; JANNASCH, Dieter; VOßIEK, Dieter, et al.: Roloff/Matek Maschinenelemente : Normung, Berechnung, Gestaltung. Wiesbaden : Springer Vieweg, 2017

Mode of delivery

“Practice section”: Integrated lecture: lecture and guided tutorials using CATIA V5.
“Project work section”: Project structured group work with focus on engineering and design and result presentation. Guidance in form of project framework, interim meetings and on-demand support.

Prerequisites and co-requisites

The students should have completed the following lectures successfully as precondition:
- "Technical Drawings and CAx Introduction"
- "CAx1"
- "Machine elements"
- For the project section: "Project Management"

Assessment methods and criteria

50% “practice section”: Written exam: Modelling a complex part based on a 2D template drawing and a skeleton file. Derive a 2D drawing that complies with industry standards and enables part manufacturing.
50% “project work section”:
          25% written technical report of the project work containing calculations and 2d  
                  manufacturing drawings.
          25% presentation of results

For a positive overall evaluation, each part has to be accomplished successfully and positive.
Use of written records is permitted.