• LinkedIn
  • Subcribe to Our RSS Feed
Feb02

Mission Engineering Analysis in CORE / GENESYS

by rkratzke

By Ron Kratzke, Principal Systems Engineer

Over the past year there has been an increased interest in performing “Mission Engineering” during initial concept development. This has come about for many reasons, one of which is an effort to ensure that subsequent operational and system architectures – and the systems developed to support them – are aligned with and support the missions for which they were designed in the first place. More...

Tags: , , , ,

Categories: CORE Software | GENESYS | MBSE

Jan19

Helping Humans Survive in Space

by mrich

“Whenever it came time for milestone reviews, we were able to satisfy all of the customer’s requirements.” – Stephanie Chiesi, senior systems engineer (Photo copyright 2012 Arizona Daily Star)

Miriam Rich, Vitech Marketing & Communications Manager

“We [humans] put out CO2 and moisture,” explained Grant Anderson, CEO of Paragon Space Development Corporation. “If you don’t take these out of the air in a spacecraft, water can condense, causing bacteria growth, shorting out equipment, or clogging critical airflow passages, and the CO2 can cause carbon dioxide poisoning.” 

Needless to say, such events are unacceptable and are why consideration of a humidity control system in a spacecraft is highly critical.

Stephanie Chiesi, senior systems engineer, worked on the humidity control subassembly for Boeing’s Crew Space Transportation (CST)-100 spacecraft while she was at Paragon Space Development Corporation. The team that Chiesi was part of designed the humidity control subassembly system for NASA’s commercial crew program.

“Humidity control in a spacecraft is unlike the system for your house, because you have to take into consideration the closed loop environment of the vehicle, as well as the conditions the system needs to survive during launch and reentry,” Chiesi explained, “factors which aren’t part of the day to day concern for humidity control in a house on Earth.”

“That’s why Vitech’s CORE [systems engineering software tool] was so helpful as we designed the CST-100,” Chiesi said.  More...

Tags: , , , , , ,

Categories: CORE Software | MBSE

Nov17

Fit for Purpose – The Choice of View

by zscott

Zane Scott, Vitech Vice President of Professional Services

One of the quandaries regularly presented to systems engineers is which view or combination of views to use when representing the system model to others. In today’s practice, there is a blessing – and a curse – in the sheer number of views available for this purpose. The choice is varied and nuanced so views can be targeted to the job at hand. Despite that, engineers often make the choice of views based on their own personal preferences or pattern of practice.

By being intentional about the way we represent our system model, we can leverage the power of the model itself to communicate the principles and rationale behind the design. To begin, we consider what a view is in the context of systems engineering. More...

Tags: , , , ,

Categories: MBSE | Misc

how to catch a cheater