Method to optimize the environmental test level of various space hardware and mission from a viewpoint of minimizing total cost

Environmental test for space hardware is one of the effective way to verify their design and quality. The level of environmental test has been decided empirically based on the development experience of government procurement large satellite of each space agency. However, this test level may not nece...

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Main Authors: Daisuke TAKAHASHI, Qinzhong SHI
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2018-02-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/84/859/84_17-00418/_pdf/-char/en
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author Daisuke TAKAHASHI
Qinzhong SHI
author_facet Daisuke TAKAHASHI
Qinzhong SHI
author_sort Daisuke TAKAHASHI
collection DOAJ
description Environmental test for space hardware is one of the effective way to verify their design and quality. The level of environmental test has been decided empirically based on the development experience of government procurement large satellite of each space agency. However, this test level may not necessarily be the optimal solution in some cases due to diversification of missions and spacecraft design in recent years. In order to solve this problem, we propose a new model which optimizes the environmental test level from the viewpoint of minimizing the total costs related to the environmental test: replacement or repair cost due to failure in the test and the loss cost due to failure in the flight environment. By using this model, it is possible to find the optimum test level according to the importance of a mission, single mission or multiple missions applied hardware. Furthermore, the proposed method will support the quantify assessment of the cost reduction effects when either increasing design margin or reducing strength variation in production.
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spelling doaj.art-5eb78a47ed8940cfbc052489c4fced3d2022-12-22T04:16:11ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612018-02-018485917-0041817-0041810.1299/transjsme.17-00418transjsmeMethod to optimize the environmental test level of various space hardware and mission from a viewpoint of minimizing total costDaisuke TAKAHASHI0Qinzhong SHI1Japan Aerospace Exploration AgencyJapan Aerospace Exploration AgencyEnvironmental test for space hardware is one of the effective way to verify their design and quality. The level of environmental test has been decided empirically based on the development experience of government procurement large satellite of each space agency. However, this test level may not necessarily be the optimal solution in some cases due to diversification of missions and spacecraft design in recent years. In order to solve this problem, we propose a new model which optimizes the environmental test level from the viewpoint of minimizing the total costs related to the environmental test: replacement or repair cost due to failure in the test and the loss cost due to failure in the flight environment. By using this model, it is possible to find the optimum test level according to the importance of a mission, single mission or multiple missions applied hardware. Furthermore, the proposed method will support the quantify assessment of the cost reduction effects when either increasing design margin or reducing strength variation in production.https://www.jstage.jst.go.jp/article/transjsme/84/859/84_17-00418/_pdf/-char/entest effectivenessenvironmental teststress - strengthnormal distributiontotal cost
spellingShingle Daisuke TAKAHASHI
Qinzhong SHI
Method to optimize the environmental test level of various space hardware and mission from a viewpoint of minimizing total cost
Nihon Kikai Gakkai ronbunshu
test effectiveness
environmental test
stress - strength
normal distribution
total cost
title Method to optimize the environmental test level of various space hardware and mission from a viewpoint of minimizing total cost
title_full Method to optimize the environmental test level of various space hardware and mission from a viewpoint of minimizing total cost
title_fullStr Method to optimize the environmental test level of various space hardware and mission from a viewpoint of minimizing total cost
title_full_unstemmed Method to optimize the environmental test level of various space hardware and mission from a viewpoint of minimizing total cost
title_short Method to optimize the environmental test level of various space hardware and mission from a viewpoint of minimizing total cost
title_sort method to optimize the environmental test level of various space hardware and mission from a viewpoint of minimizing total cost
topic test effectiveness
environmental test
stress - strength
normal distribution
total cost
url https://www.jstage.jst.go.jp/article/transjsme/84/859/84_17-00418/_pdf/-char/en
work_keys_str_mv AT daisuketakahashi methodtooptimizetheenvironmentaltestlevelofvariousspacehardwareandmissionfromaviewpointofminimizingtotalcost
AT qinzhongshi methodtooptimizetheenvironmentaltestlevelofvariousspacehardwareandmissionfromaviewpointofminimizingtotalcost