Model-based Systems Engineering of an Active, Oleo-Pneumatic Damper for a CS-23 General Aviation Aircraft Landing Gear

Model-based systems engineering (MBSE) is combining product development and project management with a focus on cross-domain, multidisciplinary projects in product development. In many application domains the engineering process and the quality gates are standardized and well defined in respective regulations. The goal of this contribution is to present a project design and engineering process which is compliant with aerospace regulations. As a case study, this paper deals with a detailed development process related to an active, oleo-pneumatic damper for a CS-23 general aviation aircraft landing gear (The CS-23 document is a construction and certification requirement for light weight powered aircraft published by the EASA). It is shown how system requirements are generated from use cases, environmental influences, failure conditions and stakeholder requirements, which finally result in the system architecture and shows how these work products are managed, especially when people from different domains are involved. Based on this, the domain-specific work products are generated, resulting in a list of hardware components, a software architecture and technical drawings for production. Furthermore, the approach illustrates how MBSE is used to incorporate safety assessment into product development.