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Calculators for each maintenance decision of a failure mode - #376
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run_to_failure, scheduled_replacement, failure_finding (with an interval by target or cost) and on_condition (with an interval by cost), in model time. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019Km2eWBiPJ5JNkme3vRg4B
… attribute on its own line Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019Km2eWBiPJ5JNkme3vRg4B
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Stacked on #374 (its commits show here until that merges): adds
run_to_failure,scheduled_replacement,failure_findingwithoptimal_failure_finding_interval(by a target on the mean unavailability, or by cost), andon_conditionwithoptimal_on_condition_interval. Each gives the per-decision numbers (failure and replacement rates, cost rate, mean unavailability, share of warnings found), in model time.Failure finding is exact for any parametric life (
U = 1 - MTTF/(tau * sum R(j tau)); exponential closed form1 - (1 - e^{-lam tau})/(lam tau)). On condition is exact for a fixed or fitted warning time with random inspection phase.Checked against closed forms and seeded simulations of the plans themselves (cycles with tests; warnings with random phase), within four standard errors, and the intervals against dense scans. Docs, README use case UC-18, API pages and changelog updated.
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https://claude.ai/code/session_019Km2eWBiPJ5JNkme3vRg4B