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3 AVE: Aerodynamics Lightweight Structures MWL (Noise and vibration) Rail Vehicles Vehicle Dynamics Neuronic engineering Optimazation and System Theory

4 Overall Objectives Within vehicle design, adressing ECOnomical and ECOlogical – ECO2 – aspects to save material and energy resources, and reduce emissions, through vehicle research in the areas of structural mechanics, noise and vibration, vehicle dynamics, aerodynamics, and biomechanics, with respect to Lifecycle cost, passenger and driver comfort, energy consumption, material selection, handling qualities, functionality, safety, reliability and other customer added values.

5 Vision By year 2016 a world-class research centre has been established, focusing on technical solutions leading to improved performance, reliability and safety; with a reduced impact on the environment, enabling a balanced system cost and maintaining comfort in road and rail vehicles. Within the Centre, vehicle design is a holistic process encompassing the involved individuals, technical solutions as well as generated methods.

6 Technology leaps

7 Projects within ECO 2 Take into account the Ecological and Economical aspects – ECO 2 criteria At least two vehicle types – Multi-vehicle At least two disciplines – Multi-disciplinary

8 Projects within ECO 2 Take into account the Ecological and Economical aspects – ECO 2 criteria At least two vehicle types – Multi-vehicle At least two disciplines – Multi-disciplinary Enable: Technology leaps and a sustainable developement

9 Virtual Vehicles Based on: The vehicle class dependent design criteria At least 10 years horizon Anticipating ECO 2 compatible novel engines/motors being state-of-the-art in that horizon

10 Virtuel Vehicles - Research method - Aim: Strengthen synergies between the different vehicle types Strengthen the multidisciplinary aspect Strengthen the correlation between vehicle design and the ECO 2 - criteria Strengthen the information flow between different vehicle types and disciplines Tool for the industry to convey their point of view on vehicle design research The virtual vehicles is a tool to reach the vision of the Centre

11 Virtual Vehicles Project proposals Ongoing projects Finilized projects

12 Annika Susann Pelle Mats Jenny Gunilla Director Assistant Manager Group

13 Organization … Figure 5. Proposed organization of the Centre. International Advisory Board Board CCG – Centre Coordination Group (Director, AMG, TM, EM) Director AMG - Assistant Management Group Steering Committee Steering Committee Steering Committee Project

14 Crosswind stability and unsteady aerodynamics in vehicle design Improve the design of road and rail vehicles with respect to dynamic crosswind This will enhance the potential of lighter vehicles, which in turn will reduce energy consumption and air pollutions KTH, Bombardier, Saab, Scania, Banverket, Vägverket

15 Define critical and realistic wind gust scenarios Explore unsteady aerodynamic simulation methods Investigate the influence of vehicle external shapes Simulate vehicle/driver response to dynamic crosswind Propose less wind sensitive vehicle designs, including condition monitoring and driver handling Propose less wind sensitive infrastructure designs (to some extent) Crosswind stability and unsteady aerodynamics in vehicle design - Objectives -

16 Design of multifunctional body panels integrating two or more functions/components: Outer structure panel, NVH treatment (both structural damping and sound transmission), interior trim. Reduce cost, shorten the assembly times, reducing the overall weight while maintaining targets Initially project focuses on automotive applications but extensions to bus/truck/train under discussion. Multifunctional Body Panels KTH, Saab, A2 Acoustics, Polytec, Bombardier

17 Multifunctional Body Panels - Objectives- Study conceptual designs of integrated body panels Focus on integration of several functions (e.g. structure and NVH treatment) through multi-layered components Performance (NVH and structural) at the same/lower cost = weight, manufacturing efficiency,... Development of computational tools and their integration driven by multi-attribute optimisation. Development of material models required in the optimisation/design process

18 Goal: To increase the knowledge on how to develop vehicle suspension systems, under maintained handling and riding comfort, with reduced unsprung mass, rolling resistance, tire wear, structure-borne noise, vibrations, suspension travel and/or tire size. ECO 2 Suspension design KTH, Volvo CE, Volvo 3P, Bombardier

19 Present subprojects: Suspension system design for optimal performance regarding transmission of structure-borne sound without any penalties in handling and riding comfort Design issues for reduced suspension travel and smaller wheels Product verification within suspension design ECO 2 Suspension design

20 Ongoing projects: P1. Crosswind stability and unsteady aerodynamics in vehicle design P2. Multifunctional body panels P3. ECO 2 Suspension design Virtual Vehicle II Master thesis; Reduction of traffic noise and vehicle drag by under body sheilding, More than 30 project praticipants (6 PhD-students) One new PhD-student shall be employed during before the end of this year Ongoing project proposals: P4. Minimal annoyance of rail and road traffic noise P1. (Subproject) ECO 2 suspension design / Vehicle - Tyre Dynamics P3 P2 The project actively involves the vehicle type The project does not actively involve the vehicle type but the knowledge is useful for the vehicle type Status P1

21 Multidisciplinary interaction Sound and Vibrations Aerodynamics Vehicle Dynamics P1 P3 P2 P3 P1 ECO 2 aspects Lightweight structures Railway technology P1. Crosswind stability and unsteady aerodynamics in vehicle design P2. Multifunctional body panels P3. ECO 2 Suspension design

22 Project generation process

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