Abstract
We introduce a design environment for complex multitechnology systems. The design environment supports hierarchical, multi-level and mixed-mode simulation. The design environment is based on commercially available CAE-tools including graphical interfaces for both mechanical and analog simulators. The system is built around the high-level hardware description language and interactive postprocessor tools for simulators. Linear and non-linear systems can be modelled in time and frequency domains. There is a simulation example of multitechnology system including, electronical, hydraulical and mechanical components.