Load Cell Method for Buckling Analysis of Coil Springs
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- KOHTARI Katsuhide
- Faculty of Science and Technoloyy, KEIO University
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- KATSUNO Hiroshi
- Faculty of Science and Technoloyy, KEIO University
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- UCHIYAMA Taro
- Faculty of Science and Technoloyy, KEIO University
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- HISAJIMA Shiroh
- Faculty of Science and Technoloyy, KEIO University
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- KUNOH Takahiko
- Faculty of Science and Technoloyy, KEIO University
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- MIZUNO Masao
- Faculty of Science and Technoloyy, KEIO University
Bibliographic Information
- Other Title
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- 多分荷重計によるコイルばねの座屈荷重の決定
- 多分力荷重計によるコイルばねの座屈荷重の決定
- タブンリョク カジュウケイ ニ ヨル
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Abstract
Buckling load of helical compression springs can be calculated by treating them as elastic columns of equivalent compressive, flexural and shearing rigidities which vary with compression of them. If the compressive load is kept under the critical one, the axis of ideal coils remains straight, and it suddenly deflects to the lateral direction when the load reaches the critical value. But compression springs usually have initial imperfections, such as initial deflection of the coil axis and end turns which cause eccentricity of loading. Therefore, the axis deflects laterally with increasing the axial compressive load under the critical one, which is a characteristic of the imperfect columns.<br>This paper shows a modified Southwell's method to estimate the buckling load of the perfect springs from the experimental relations between the compressive load and the fixed end moment which are detected by the multicomponents load cell. The compression tests were carried out on the coil springs of the slenderness ratio between 6 to 9.<br>The experimental results show good agreement with the buckling load calculated by the Haringx's theory.
Journal
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- Transactions of Japan Society of Spring Engineers
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Transactions of Japan Society of Spring Engineers 1987 (32), 19-23, 1987-03-31
Japan Society of Spring Engineers
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Details 詳細情報について
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- CRID
- 1390001205216698368
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- NII Article ID
- 130003705031
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- NII Book ID
- AN00205485
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- ISSN
- 13481479
- 03856917
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- NDL BIB ID
- 3129072
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed