This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Payload Accommodation and Development Planning Tools: A Desktop Resource Leveling Model (DRLM)
Annotation ability available
Sector:
Language:
English
Abstract
Payload accommodation studies and project fiscal planning require frequent, iterative adjustments of resource requirements against resource availabilities. A “quick-look” Desktop Resource Leveling Model has been developed to enable planners to rapidly structure and manipulate accommodation, schedule, and funding profiles for any desired kind of experiments, payloads, facilities, flight systems, or other project “deliverables.”
The Model sets up detailed databases describing “End Item” parameters such as mass, volume, power requirements or DDT&E costs, and schedules for payload, subsystem, or flight system elements. It enables the planner to prepare detailed Scenarios describing the development, production, launch, and accommodation requirements of the payload, flight system, etc., under study, and to incorporate relevant costs from any cost estimating system. The Model automatically spreads costs by Calendar Quarter and sums costs or accommodation parameters by total project, payload, facility, payload launch, or program phase under control of the planner. The totaled parameters can be compared graphically, or in tabular form, against accommodation or program resources. “What if?” adjustments to parameters and schedules can be iterated rapidly to evaluate new options and analyze project sensitivities. Final results can be saved or printed out, automatically documenting all assumptions, inputs, and defaults.
The Model is now under intensive internal review and will be released as early as possible for general review and comment.
Authors
Topic
Citation
Hilchey, J., Ledbetter, B., and Williams, R., "Payload Accommodation and Development Planning Tools: A Desktop Resource Leveling Model (DRLM)," SAE Technical Paper 891528, 1989, https://doi.org/10.4271/891528.Also In
References
- Ledbetter B. May R. “Space Station Life Sciences Cost Study (With Work Breakdown Statement and Standard Operating Practice),” Final Report, PRC-D-2294-H Nov. 1987
- Williams R. “A Users' Guide to the Desktop Resource Leveling Model (DRLM),” 1989
- Arno R. Hilchey J. “Space Station Life Sciences Guidelines for Nonhuman Experiment Accommodation,” SAE Paper 851370 Fifteenth Intersoclety Conference on Environmental Systems San Francisco, CA July 1985
- Hilchey J. Arno R. Gustan E. Rudiger C. “Science and Payload Options for Animal and Plant Research Accommodations Aboard the Early Space Station,” SAE Paper 860953 Sixteenth Intersociety Conference on Environmental Systems San Diego, CA July 1986
- Drake G. “Life Sciences Payload Definition and Integration Study; Tasks A and B: Requirements and Design Studies,” Final Report, GDC-DBD72-002 General Dynamics-Convair March 1972
- Funston W. “Mark V Life Sciences Pay-load Definition Program: Research Function/Equipment Inventories and Payload Sorting System,” Unpublished Internal Reports George C. Marshall Space Flight Center, NASA ca 1976