Activity-Based Simulation of Future Launch Vehicle Ground Operations

DePasquale, Dominic; Kelly, Michael J.; Charania, A.C.; Olds, John R.

doi:10.2514/6.2008-7660

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…9,10,11 The HyPort model is similar to these, in that it is able to simulate the various processes and activities that take place at a spaceport during the conduct of operations associated with a SSTO service to low Earth orbit. The model uses an Event Scheduling approach 9 and is integrated Components Example(s)…”

Section: Iia Hyport Discrete Event Simulatormentioning

confidence: 99%

“…The space plane operations system is then defined in terms of a combination of processes and activities, together with the way that these processes and activities are sequenced and interconnected to define the 'process flow' within the system. Similarly to the RLVSim model of DePasquale et al, 9 HyPort assumes that there is an unlimited market demand for payload delivery (unless specified otherwise). The demand is thus made equal to the maximum amount of payload that the SSTO transportation system that is based at the spaceport can insert into orbit per year.…”

Section: Activitiesmentioning

confidence: 99%

“…While any form of PDF could potentially be used as input to the model, a triangular distribution is commonly held to best model the distribution of times that might be taken to complete any activity of the type that might be classified broadly as 'industrial maintenance'. 9 The advantage of the triangular distribution is that it can be parameterised in terms of three values which are usually relatively straightforward to estimate from data: the minimal value, the maximal value and the most likely value (see Fig. 1).…”

Section: Iib Activity Modellingmentioning

confidence: 99%

See 2 more Smart Citations

Robust Multi-disciplinary Modelling of Future Re-usable Aerospace Planes

Wuilbercq¹,

Mogavero²,

Brown³

2015

20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference

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Practical embodiment of the Single-Stage to Orbit concept has long been held as the key to unlocking a future of rapid, reliable, even scheduled access to space. The full potential of Single-Stage to Orbit will only be realised when this vehicle concept is integrated into an airline-like operational paradigm which has, as its basis, the re-usability of the individual vehicles that comprise the fleet, but in addition, extends to the long-term assuredness of operations through sustained reliability, quick turnaround, and control over recurring costs to the point where the profitability of the enterprise can be assured for its owners and investors. The purpose of this paper is to make some initial steps towards providing some quantitative answers as to how decisions that are made regarding the design of the actual hardware might impact on long-term viability of the technology through influencing the reliability of the system and eventually its cost when incorporated as part of an integrated transportation system. This is achieved through embedding a physics-based simulation of the performance of the vehicle subsystems, under operational conditions, into a Discrete Event Simulation of spaceport operations, allowing the statistical relationship between the various design characteristics of the vehicle, and the metrics that are relevant to its operational cost, to be exposed.

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Section: Iia Hyport Discrete Event Simulatormentioning

confidence: 99%

Section: Activitiesmentioning

confidence: 99%

Section: Iib Activity Modellingmentioning

confidence: 99%

See 1 more Smart Citation

Robust Multi-disciplinary Modelling of Future Re-usable Aerospace Planes

Wuilbercq¹,

Mogavero²,

Brown³

2015

20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference

View full text Add to dashboard Cite

show abstract

“…As such, the Hypersonics Project is endeavoring, largely through the use of NASA Research Announcements (NRAs), to begin to fill some of these gaps. One such NRA is with Spaceworks, Inc., who are developing a discrete event simulation of operations for hypersonic vehicles 16 . Built using Arena © , the "Descartes" tool will provide estimates of the operational characteristics of the vehicle such as turn around time and operations cost.…”

Section: Discipline Fidelity Levelsmentioning

confidence: 99%