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Today, detailed up-front theoretical analysis is essential to shorten development time and decrease costs. Multi-Layer Steel (MLS) cylinder head gaskets we use are coated with a very thin rubber-like coating plus featuring other complicated geometric features, which makes the analysis a difficult task. With the Proteus® software package we define a project, which consists of the manufacturing process of the main elements (like embossments or wave stopper) up to the functional parameters (like loading behaviour and durability). This paper presents how we start with the single layer element simulation and transfer the information into the multi-layer analysis. Both of those cases are 2D-axis-symmetrical. Further the developed information will be used for 3D simulations in other software packages Besides the project approach in Proteus® we will briefly explain the theoretical basis. For that we start with the Method of the Local Functionals (MLF), a modification of the traditional FEM.

Today, Computer Aided Engineering (CAE) is a feature that becomes more and more essential in the development of Thermal-Acoustical Protective Shields (TAPS). The development cycle of TAPS needs to be reduced while simultaneously reducing costs. The performance, functionality and visual appearance need to be improved as well. This paper will describe our general CAE approach, which is based on the use of different CAD systems and Finite Element Analysis (FEA). We will describe how we use the results of our approach in the development of new TAPS. Because this approach is based on the knowledge of the parameters that exist and how they influence a TAPS function, we will first discuss the most important of these parameters. Here we split our discussion into ‘What is a TAPS, ‘What are the main steps of making a TAPS - Designing, prototype’, and ‘How a TAPS works in an engine’. We will then explain the different FEA utilization's.