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Nickel, D. Internationales Stuttgarter Symposium: Automobil- und Motorentechnik. Matthiesen, S. Lutz, S. Gemeinsames Kolloquium Konstruktionstechnik, , Duisburg, Oktober Behrendt, M. Siegel, A. Simulation of acoustic product properties in virtual environments based on artificial neural networks ANN. Maier, —, The Design Society, Glasgow. Validation environment for function development and coverage of ADAS in the car development process.

Bargende, —, Springer Vieweg, Wiesbaden. Design science, 3 5 , System-integrated data acquisition in validation and operation of electric vehicles.

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Bause, K. Internationales Stuttgarter Symposium.

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Automobil- und Motorentechnik. Bargende, —, Springer, Wiesbaden. Validierung 4. Determination of sustainability indicators and validation strategies for integrated electro mobility. September, , KU Leuven, Heverlee. Verifikation und Validierung im Produktentstehungsprozess. Handbuch Produktentwicklung.

Mai Koppelsystems: Obligatory elements within validation setups. Got the power? Kropp, —, German Acoustical Society, Berlin.

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Husung, S. Wissenschafts- und Industrieforum Intelligente Technische Systeme , April , Paderborn. Wirtschaft und Wissenschaft auf dem Weg zu Industrie 4. Implementation of sound intensity measurements into indoor pass-by noise testing. September - 1. Oktober, , 17, ATZlive, Wiesbaden. June, , 15, ATZlive, Wiesbaden.

Konstruktion, 67 6 , 74— SAE International journal of alternative powertrains, 4 1 , 58— Juni Eine Methode zur kontinuierlichen Validierung in Produktentstehungsprozessen. Design for X. DfX-Symposium - Herrsching a. Ammersee, Oktober Krause, —, TuTech Verlag, Hamburg. SAE International journal of alternative powertrains, 4 2 , — Psycho-Physical studies on the perception of vehicle vibrations in passenger vehicles. Validierung in der Produktgenerationsentwicklung. Efficient, function-integrating shifting components for EV. VDI-Fachkonferenz mit Fachausstellung. Schwingungsreduzierung in mobilen Systemen April , Karlsruhe.

Towards Automotive NVH Enhancement: Structural Dynamics Analysis of a Vehicle Wheel

Konstruktion, 09 CTI Symposium, Berlin, Dezember Determination of acoustic contributions of car components to the far field using transfer functions. Bargende, —, Springer, Berlin. ATZ - Automobiltechnische Zeitschrift, 2 , 64— Procedia CIRP, 21, — Entwicklung eines Werkzeugs zur Virtualisierung der Fahrzeugvorbeifahrt. IFF-Wissenschaftstage, Schenk, —, Fraunhofer Verlag, Stuttgart. Munker, F. Procedia computer science, 28, — Measurement and analysis of the interior noise and the transfer path of acoustic phenomena into the driver cabin of a battery electric vehicle.

Fischer, J. A new validation concept for future automotive development. Matros, K.

What is ARAI Certification - Tests & Cost of ARAI - Electric Vehicles

Oktober , 1—17, ATZlive, Wiesbaden. SAE International journal of engines, 7 3 , — Automobiltechnische Zeitschrift, 3 , 68— Albert Albers; Fischer, J. ATZ worldwide, 3 , 48— Identification and definition of acoustic relevant limit values for electric vehicles. Automotive and Engine Technology Automobil- und Motorentechnik. A holistic approach to the assessment of powertrain induced acoustic phenomena in battery electric vehicles. Following the same validation principle and model fidelity requirement, the same simulation environment can be utilised for ESC certification.

It is required to attain performance goals at the development early stage for short period development of air conditioner. In this study, we tried an optimization calculation of a HVAC configuration upstream the evaporator which governs evaporator transit flow distribution uniformity and the HVAC total pressure drop for short period development.

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The evaluation of lubricating effect of the transmission lubrication system is an important part in the transmission design. The Ansys-Fluent software is used in this paper. Firstly, the flow field of the single oil orbit of 7DCT transmission is simulated and the mass flow rate of each nozzle is taken as the input condition of the lubricating simulation and analysis in the whole transmission model. Then the whole transmission model is established to facilitate evaluating the lubricating effect of the oil catcher by setting the monitor surfaces at the positions of the oil catcher. The complex oil and gas phase flow field of transmission is simulated and analyzed so that the lubrication effects of three lubricating method are evaluated to achieve the purpose of evaluating the performances of the transmission lubrication system, including the forcing ejective oil lubrication, splash lubrication and oil passage lubrication.

Rubber bushing is a very important connection component in vehicle suspension. It plays an important role in vehicle performance. To resolve a crack issue of the bushing occurred in load test, the optimal design is requested. The material parameters of rubber are identified by minimizing the errors between the simulated and tested stiffness curves of bushings. The structure optimization is studied to obtain a new design, which reduces the stress in the crack area and keeps nearly the same stiffness of the original design.

The investigation with several load cases shows that the stresses of the optimized bushing decreases significantly from the original design. The prediction of brake temperatures by means of numerical simulation is always a challenging objective. The main difficulties in brake cooling simulation are the correct definition of the brake heat generation and an accurate thermal simulation of the brake system, which includes the main heat exchange mechanisms, such as convection, conduction and radiation.

This paper describes a simulation process that combines 1D simulation with 3D thermal simulation of brake systems. An innovative procedure using numerical simulation and its validation is presented in this paper, in order to help prevent temperature-related brake problems. The reduction of vehicle manufacturing costs is one of the most important targets in the development phase. One way to reduce this cost is by means of the reduction of welding points. Another challenge lies in reducing the development time. Both for reduction of costs as well as development time, simulation is increasingly important.

This paper explains how both objectives can be achieved by means of spot weld optimization applying the finite-element method. The BIW has to satisfy certain requirements. The most important requirements concern fatigue, stiffness and crashworthiness. Some requirements may cause conflicting solutions, for example, a good solution for stiffness such as a high eigenvalue , could be an unacceptable solution for crashworthiness.

For this reason, joints or other parts are sometimes oversized. In order to reduce the cost of the project and simplify the manufacturing process, an optimization study is performed.

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In this project, all spot welds used in the manufacturing process of the BIW will be analysed with optimization software PAM-OPT for all load cases mentioned earlier crashworthiness, stiffness and fatigue. The objective is to minimize the number of welds and improve the defined targets. After this spot weld reduction, the BIW must still meet all structural targets defined in the project. This means that the target in BIW stiffness first eigenvalue , crash targets pulse, deformation pattern, intrusions and fatigue targets must be respected.

In order to perform the optimization, it is necessary to define the target e. Analysing different load cases for a complete BIW, implies a significant calculation capacity, especially for load cases calculated with the explicit method offset crash, side crash, etc. The limited availability of CPUs could mean that only a partial study of the vehicle is feasible.

Current climate change conditions together with new environmental regulations are boosting research and use of new materials in order to reduce both the use of petroleum products and CO. Composite material becomes an excellent candidate in order to achieve the abovementioned challenges.

Juhani Laurikko – Research Output — VTT's Research Information Portal

The stiffness-weight ratio of composite materials provides an optimal intrinsic material characteristic when compared with the traditional metal approach. This is the reason why aeronautical and automotive industries are increasingly trying to incorporate these materials into structural parts design. Crashworthiness performance is important in both the automotive and the aeronautical sectors.

Nevertheless, some of the automotive impact load cases, such as the Side Pole and Frontal Impact, imply structural behaviour scenarios that reach and probably surpass the state-of-art of the current virtual development tools regarding carbon fiber material laws and finite element modelling techniques. This chapter describes the necessary steps to follow in order to be able to introduce carbon fiber parts in vehicle structural development.

The process should consider: 1 Criteria definition for the selection of parts to be made of carbon fiber. The integration of CFRPs materials in vehicle structural parts is achievable through a multidisciplinary team combining deep knowledge and expertise in vehicle functionalities, material science and manufacturing together with excellence in managing the development tools: CAD, CAE and Testing. It is usual that the applied loads on structural elements are in fluctuating situations. Sometimes the component can break under its ultimate or its yield strength.

This break situation is due to the fluctuating loads that have been applied for long periods.