Front-loading short CFD loops to integrate with engineering template
Typ
Examensarbete för masterexamen
Program
Publicerad
2020
Författare
Santhosh Kumar, Harish
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
In this competitive and fast evolving automotive market, it is crucial to progress
forward in the product development process effectively and efficiently. One tool to
achieve it is using knowledge-based engineering. The design and development of
a component in a car is an intensive activity. Engineering template, a knowledge
based engineering method is widely utilized to reuse the for-seen knowledge and
reduce the lead time for the development.
Though the engineering templates provide us with models that are competent, the
model needs to be simulated and analysed before finalisation. In real world, it is
not uncommon that the model generated from template, matures before the simulation
results are delivered due to newly sprouted issues. This thesis is focused
on integration of airducts into engineering template, more specifically airducts in
the B-Pillar of a Volvo Car, with short CFD simulation loops in the early phase of
product development with which quality models could be created.
A standard product development procedure was followed to develop the solution for
the thesis. Planning and pre-study were carried out to evaluate the current market
situation and advancements in the field and also in the department. Essential
stakeholders were identified and data were collected through interviews and focus
groups. With the available information, parametrized template was developed for
stable geometry creation for further usage during simulations. The model variants
developed through the template were evaluated using the integration methods and
results were graphed to compare with the reference result.
This thesis has abridged the gap between CAE and concept design development
using quick simulation in the early product development phase. The simulation in
early phases is quite difficult, due to the fact, that the available stable CAD model
data are scarce and inadequate. The design of the airduct changes rapidly before the
CAE team could get back with the simulation result of the product. The developed
solution diminish this drawback and carry out short and accurate simulations for
the concepts to evaluate them before they are pushed to detail design.
The conclusion of the thesis is, the developed solution to abridge the integration gap
by salvaging around 30 minutes of the simulation time and the obtained results are
almost accurate as the reference result, deviating between 2 to 10 pascals depending
upon the intensity of mass-flow.
Beskrivning
Ämne/nyckelord
Engineering Template, Simulation, CFD integration, Short loops , Early product development phase, Simulation and knowledge based design