{"closest_prior_art":[{"name":"US Patent 10,634,233, Efficiency based gearbox cooling control","overlap":"Calculates transient energy absorption by individual gearbox subcomponents, measures heat carried by working fluids, accounts for conductive, convective, and radiative transfer, predicts future heat-loss conditions, and adjusts coolant or lubricant parameters.","remaining_difference":"It controls an operating gas-turbine gearbox for efficiency and thermal margin; it does not disclose a cyclic durability-test admission gate based on a reconciled retained-energy band, explicit uncertainty and residual tolerances, and comparison against fixed cooldown and local-temperature rules.","source_ids":["SRC2"]},{"name":"WTplus transient thermal-network method for gearbox component temperatures","overlap":"Uses component masses, heat capacities, loss inputs, heat transfer, and differential equations to predict distinct component temperatures during gearbox load cycles; it was validated on an FZG test rig.","remaining_difference":"It predicts transient component temperatures for design and analysis but does not report an inter-run enthalpy ledger, measurement reconciliation with residuals, or an advisory decision rule that admits or delays the next durability cycle.","source_ids":["SRC3"]},{"name":"Transient thermal model of a back-to-back FZG gearbox test machine","overlap":"Couples gearbox power losses and a thermal network, validates transient predictions on a test rig, and reports that actual bulk temperature can differ substantially from oil-sump temperature.","remaining_difference":"It supplies strong modeling and problem evidence but does not use boundary-wide retained energy and uncertainty to gate successive durability runs.","source_ids":["SRC1"]},{"name":"EASA large-helicopter main-gearbox durability bench-test guidance","overlap":"Uses transmission-test-rig durability testing, requires stabilization of torque, oil temperature, and oil pressure before a critical test entry, and identifies frictional heat, thermal expansion, and component damage risks.","remaining_difference":"The entry criterion is expressed through stabilized operating variables, especially oil temperature, rather than a reconciled distributed-energy estimate or comparison of alternative inter-run admission decisions.","source_ids":["SRC4"]}],"contrastive_claim_falsifier":"Falsify the remaining claim if preregistered approved run-and-cooldown sequences show that the ledger cannot reconcile predicted energy changes with distributed temperatures and coolant calorimetry within tolerance, cannot distinguish intentionally different carryover histories that pass the same baseline checks, or produces no repeatable admission information beyond fixed cooldown and local-temperature gates.","contrastive_claim_remaining":"For sequential gearbox durability runs that satisfy the same fixed-cooldown and local-temperature criteria, a boundary-defined, reconciled enthalpy estimate with explicit uncertainty and residual limits will change at least some pre-run admission decisions and better predict subsequent distributed component-temperature or coolant-energy responses than the baseline criteria alone.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","gates":{"adequate_source_search":{"rationale":"The bounded search covered the proposal directly, thermal-network and enthalpy terminology, gearbox test practices and official guidance, and combinations involving component heat capacity, coolant calorimetry, transient energy absorption, cooling control, and patents. Four opened sources from SAGE, Justia/Rolls-Royce, Springer Nature, and EASA were retained. This is adequate for a coarse screen, not an exhaustive prior-art search.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"bounded_next_test":{"rationale":"An approved sacrificial or no-article bench study can vary prior thermal history while holding baseline admission observations comparable, then evaluate reconciliation error, discrimination, and decision differences. Published FZG validations show that transient thermal-network testing with component measurements is practicable; existing bench-test guidance supplies a bounded procedural setting.","source_ids":["SRC1","SRC3","SRC4"],"status":"PASS"},"distinct_testable_claim":{"rationale":"The retained art establishes transient distributed gearbox models and energy-aware cooling control, but no retained source combines them with an uncertainty-bounded, residual-preserving pre-run admission gate evaluated against fixed cooldown and local-temperature rules in cyclic durability testing. That remaining difference produces measurable decision and prediction outcomes.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"no_obvious_safety_or_authority_stop":{"rationale":"The proposed first test preserves protective trips, approved loads, cooling settings, lubrication limits, guarding, and design-authority control. It is advisory and requires rollback if it conflicts with the baseline. EASA guidance confirms that bounded gearbox bench durability testing with stabilized thermal and lubrication conditions is an established controlled activity; no source creates an obvious categorical stop.","source_ids":["SRC4"],"status":"PASS"},"supported_problem":{"rationale":"Transient test-rig research shows that oil-sump or global temperature can differ from gearbox bulk and component temperatures, while component heat capacities and load-cycle histories matter. Official guidance identifies frictional heating and thermal-expansion damage and uses oil-temperature stabilization as a test-entry condition. The exact frequency of erroneous inter-run admissions is not directly measured, but the technical problem is sufficiently visible for this screen.","source_ids":["SRC1","SRC3","SRC4"],"status":"PASS"}},"prior_art_disposition":"ADJACENT_PRIOR_ART","problem_evidence":{"finding":"PARTLY SUPPORTED: published gearbox-test research directly demonstrates transient thermal gradients, distinct component states, heat-capacity effects during load cycles, and possible divergence between oil-sump and bulk temperature. Official durability-test guidance confirms consequential thermal and lubrication risks and temperature-based entry conditioning. The retained sources do not directly demonstrate a fixed-cooldown or local-temperature rule admitting a cyclic run with harmful hidden carryover, so that empirical premise remains to be tested.","source_ids":["SRC1","SRC3","SRC4"],"status":"PARTLY_SUPPORTED"},"research_id":"eoa_inverse_innovation_exp13_light_screen_20260806","schema_version":1,"screen_id":"E13P091","screen_survival":true,"search_lanes":{"component_combination":{"no_result_note":null,"queries":["patent gearbox thermal energy model temperature estimator heat accumulation","patent transmission thermal state estimator lubricant temperature model duty cycle","gearbox test rig transient thermal model energy balance coolant calorimetry","gearbox thermal state estimator stored energy enthalpy test bench"],"source_ids":["SRC1","SRC2","SRC3"]},"direct_problem_and_intervention":{"no_result_note":null,"queries":["gearbox durability test thermal soak cooldown temperature stabilization run admission","gearbox test rig transient thermal model energy balance coolant calorimetry","stored thermal energy gearbox","gearbox durability test cooldown temperature procedure"],"source_ids":["SRC1","SRC3","SRC4"]},"products_practices_and_standards":{"no_result_note":null,"queries":["gearbox endurance test standard temperature lubrication cooldown","gearbox durability test cooldown temperature procedure","transmission durability test stabilized oil temperature test cycle","gear test rig thermal equilibrium test procedure temperature"],"source_ids":["SRC4"]},"synonyms_and_historical_terms":{"no_result_note":null,"queries":["gearbox thermal state estimator stored energy enthalpy test bench","gearbox thermal energy test rig transient","stored thermal energy gearbox","gearbox test temperature stabilization duty cycle"],"source_ids":["SRC1","SRC2","SRC3","SRC4"]}},"sources":[{"claims_supported":["A coupled thermal-network and power-loss model was tested in transient operation on an FZG back-to-back gearbox rig.","Measured and modeled transient behavior agreed.","Actual bulk temperature can substantially depart from oil-sump temperature, making an isothermal estimate questionable under some conditions."],"publisher":"SAGE Publications / Institution of Mechanical Engineers","source_id":"SRC1","source_type":"PRIMARY_RESEARCH","title":"Thermal modelling of a back-to-back gearbox test machine: Application to the FZG test rig","url":"https://journals.sagepub.com/doi/abs/10.1177/1350650111433243"},{"claims_supported":["Transient gearbox heat accounting may sum energy-change rates of individual solid subcomponents.","Working-fluid heat absorption can be calculated from heat capacity, inlet-to-outlet temperature change, and mass flow.","Conductive, convective, and radiative transfers and surrounding-material energy changes may be included.","Coolant or lubricant flow, pressure, and temperature can be adjusted using predicted thermal behavior."],"publisher":"Justia, reproducing Rolls-Royce Corporation US Patent 10,634,233","source_id":"SRC2","source_type":"OTHER","title":"Efficiency based gearbox cooling control","url":"https://patents.justia.com/patent/10634233"},{"claims_supported":["A transient gearbox thermal network can represent individual components using mass and specific heat capacity.","The model predicts component-temperature changes during load cycles and includes heat transfer between components and to the environment.","The approach was validated with measurements from an FZG gear-efficiency test rig.","Individual component temperatures can differ from a representative global or oil temperature."],"publisher":"Springer Nature","source_id":"SRC3","source_type":"PRIMARY_RESEARCH","title":"Calculating component temperatures in gearboxes for transient operation conditions","url":"https://link.springer.com/article/10.1007/s10010-021-00532-4"},{"claims_supported":["A transmission test rig is an accepted means for specified main-gearbox durability demonstrations.","The guidance calls for stabilized torque, oil temperature, and oil pressure before critical test entry.","Lubrication dissipates frictional heat from gears and bearings.","Elevated component temperatures and thermal expansion can contribute to failure of bearings, gears, shafts, journals, and clutches."],"publisher":"European Aviation Safety Agency","source_id":"SRC4","source_type":"OFFICIAL_GUIDANCE","title":"Large Helicopter Main Gearbox Certification Requirements, EASA CM-RTS-001 Issue 01","url":"https://www.easa.europa.eu/sites/default/files/dfu/certification-docs-certification-memorandum-%27final%27-EASA-CM-RTS-001-Issue-01_Large-Helicopter-Main-Gearbox-Certification-Requirements_PUBL.pdf"}],"world_novelty_boundary":"This bounded public-web screen found close technical building blocks but no opened source expressly combining a reconciled, uncertainty-bounded retained-energy ledger with pre-run admission decisions for successive gearbox durability cycles. That supports only an ADJACENT_PRIOR_ART disposition. It does not establish world novelty, patentability, freedom to operate, market size, expert acceptance, realized value, or absence of undiscovered patents, proprietary procedures, non-indexed standards, or non-English prior art."}