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Adopting Model-Based Software Design and Verification for Aerospace Systems

UTC Aerospace Systems-Ashutosh Kumar Jha, Prakash Choudhary
Published 2017-09-19 by SAE International in United States
The complexity of software development is increasing unprecedentedly with every next generation of aircraft systems. This requires to adopt new techniques of software design and verification that could optimize the time and cost of software development. At the same time these techniques need to ensure high quality of software design and safety compliance to regulatory guidelines like DO-178C [1] and its supplements DO-330[2] and DO-331[3].To arrive at new technologies one has to evaluate the alternate methods available for software design by developing models, integration of models, auto-code generation, auto test generation and also the performance parameters like time, effort, reuse and presentation needs to be evaluated. We have made an attempt to present summary of alternate design concept study, and edge of MBD over other design techniques.The new techniques have challenges in managing the software development processes through conventional means and showing their compliance to stringent industry standards and guidelines. We have present process compliance to aerospace software development guideline DO-178C.This paper has discussed requirements of DO-178C and its associated supplement DO-331 for model based…
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Framework and Platform for Next Generation Aircraft Health Management System

UTC Aerospace Systems-Ashutosh Kumar Jha, Gaurav Sahay, Adishesha Sivaramasastry
Published 2017-09-19 by SAE International in United States
In aerospace industry, the concept of Integrated Vehicle Health Management (IVHM) has gained momentum and is becoming need of the hour for entire value chain in the industry. The expected benefits of lesser time for maintenance reduced operating cost and ever busy airports are motivating aircraft manufacturers to come up with tools, techniques and technologies to enable advanced diagnostic and prognostic systems in aircrafts.At present, various groups are working on different systems and platforms for health monitoring of an aircraft e.g. SHM (Structural Health Monitoring), PHM (Prognostics Health Monitoring), AHM (Aircraft Health Monitoring), and EHM (Engine Health Monitoring) and so on. However, these approaches are mostly restricted to federated architecture where faults and failures for standalone line replaceable units (LRUs) are logged inside the unit in fault storage area and are retrieved explicitly using maintenance based applications for fault and failure diagnostics. With the transformational growth in computing technology, one can easily visualize the possibilities of moving from present federated architecture to integrated architecture for health monitoring of aircraft in near future.The advanced analytical methods…
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