Method, system, and computer program product for a maintenance optimization model
First Claim
1. A method of developing a maintenance optimization model for an aircraft system, comprising:
- determining a plurality of relevant outputs of the maintenance optimization model;
determining a plurality of inputs of the maintenance optimization model related to the aircraft system;
storing, on a memory of a computer, a plurality of relationships between the plurality of inputs to produce values for each of the plurality of relevant outputs;
selecting at least one output from the plurality of relevant outputs based on expectations of a user of the aircraft system;
adjusting one of the plurality of inputs, the adjusted one of the plurality of inputs being related to a functional failure of a component of an aircraft of the aircraft system;
running the maintenance optimization model on a processor of the computer such that the relationships produce values for each of the plurality of outputs relevant to the adjusted one of the plurality of inputs, the plurality of relationships includingdetermining whether an occurrence of the functional failure is evident to an operating crew during performance of normal duties;
determining whether the functional failure or secondary damage resulting from the functional failure has a direct adverse effect on operating safety;
determining whether the functional failure has a direct adverse effect on operating capability;
when the functional failure is hidden from the operating crew, determining whether a combination of the hidden functional failure and one additional failure of a system related function or back-up function has an adverse effect on the operating safety; and
determining if the component is part of one of the systems checked during a scheduled maintenance task;
when the functional failure has the direct adverse effect on operating safety, concluding the running of the maintenance optimization model such that the maintenance schedule of the component is not analyzed; and
when the functional failure does not have the direct adverse effect on operating safety,analyzing a change in the selected at least one output based on the adjusted one of the plurality of inputs, andupdating the maintenance schedule of the component of the aircraft to include the adjusted one of the plurality of inputs when the selected at least one output is improved with the adjusted one of the plurality of inputs.
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Accused Products
Abstract
A method of developing maintenance optimization model includes finding relevant criteria to drive the design towards operational performances at minimal cost for the end user, selecting inputs necessary to assess criteria selected, defining mathematical models to jointly drive the equipment/sub-system/system design and its support towards better supportability, and presenting the maintenance optimization model results to enable the exploration of the cause and effect relationships between design decisions and their operational and support impacts. The selected inputs may cover all the potential factors influencing the criteria values. The mathematical modeling can facilitate leveraging the intuitive “cause and effect” relationship between design and support, and affordability. The maintenance optimization model method, system, and computer program product provides a solid basis for the supportability evaluation of equipment/system/sub-system choices, particularly when integrated in a systematic way into the design process and used from the beginning of the development cycle.
22 Citations
23 Claims
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1. A method of developing a maintenance optimization model for an aircraft system, comprising:
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determining a plurality of relevant outputs of the maintenance optimization model; determining a plurality of inputs of the maintenance optimization model related to the aircraft system; storing, on a memory of a computer, a plurality of relationships between the plurality of inputs to produce values for each of the plurality of relevant outputs; selecting at least one output from the plurality of relevant outputs based on expectations of a user of the aircraft system; adjusting one of the plurality of inputs, the adjusted one of the plurality of inputs being related to a functional failure of a component of an aircraft of the aircraft system; running the maintenance optimization model on a processor of the computer such that the relationships produce values for each of the plurality of outputs relevant to the adjusted one of the plurality of inputs, the plurality of relationships including determining whether an occurrence of the functional failure is evident to an operating crew during performance of normal duties; determining whether the functional failure or secondary damage resulting from the functional failure has a direct adverse effect on operating safety; determining whether the functional failure has a direct adverse effect on operating capability; when the functional failure is hidden from the operating crew, determining whether a combination of the hidden functional failure and one additional failure of a system related function or back-up function has an adverse effect on the operating safety; and determining if the component is part of one of the systems checked during a scheduled maintenance task; when the functional failure has the direct adverse effect on operating safety, concluding the running of the maintenance optimization model such that the maintenance schedule of the component is not analyzed; and when the functional failure does not have the direct adverse effect on operating safety, analyzing a change in the selected at least one output based on the adjusted one of the plurality of inputs, and updating the maintenance schedule of the component of the aircraft to include the adjusted one of the plurality of inputs when the selected at least one output is improved with the adjusted one of the plurality of inputs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A non-transitory computer readable medium including computer executable instructions, wherein the instructions, when executed by a processor, cause the processor to perform a method comprising:
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determining a plurality of relevant outputs of a maintenance optimization model for an aircraft system; determining a plurality of inputs of the maintenance optimization model related to the aircraft system; storing, on a memory of a computer, a plurality of relationships between the plurality of inputs to produce values for each of the plurality of relevant outputs; selecting at least one output from the plurality of relevant outputs based on airline expectations; adjusting one of the plurality of inputs, the adjusted one of the plurality of inputs being related to a functional failure of a component of an aircraft of the aircraft system; running the maintenance optimization model on the processor of the computer such that the relationships produce values for each of the plurality of outputs relevant to the adjusted one of the plurality of inputs, the plurality of relationships including determining whether an occurrence of the functional failure is evident to an operating crew during performance of normal duties; determining whether the functional failure or secondary damage resulting from the functional failure has a direct adverse effect on operating safety; determining whether the functional failure has a direct adverse effect on operating capability; when the functional failure is hidden from the operating crew, determining whether a combination of the hidden functional failure and one additional failure of a system related function or back-up function has an adverse effect on the operating safety; and determining if the component is part of one of the systems checked during a scheduled maintenance task; when the functional failure has the direct adverse effect on operating safety, concluding the running of the maintenance optimization model such that the maintenance schedule of the component is not analyzed; and when the functional failure does not have the direct adverse effect on operating safety, analyzing a change in the selected at least one output based on the adjusted one of the plurality of inputs and updating the maintenance schedule of the component of the aircraft to include the adjusted one of the plurality of inputs when the selected at least one output is improved with the adjusted one of the plurality of inputs. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification