Simulated and measured Influence of Engine Mount Positions and Design on NVH-Behavior

This paper is about the influence of engine mount positions within vehicles in general, especially for transversally installed engines. The general comfort behavior was analyzed for several common but different mounting systems. For transversal installed engine the so called "Torque-Roll-Axis (TRA)"-system is most common at european car manufacturers including certain drawbacks. Based on this TRA-system an advanced system design, called "Stiffness-Axis-Method (SAM)" was developed, first on an analytical description, later on improved by experimental and simulation-based studies. The so far known TRA-design is a special case of the SAM-design. SAM therefore is a tool to describe best mount positions depending on engine properties and mount characteristics, respectively vice versa for all kinds of rotational vibrating propulsion systems. This paper is a very short overview and based on the book described in the chapter "Further Information".