No.1013 2015ステアリング・駆動関連技術特集号 電動パワーステアリング用ウォーム式減速機におけるかみあい変動解析技術の確立 |
| カテゴリー | 資料 |
|---|---|
| 筆者 | 自動車部品事業本部 要素開発部 菊地 新 自動車部品事業本部 第１実験解析部 待田精一 |
| 要旨 | It was difficult to theoretically analyze meshing variation of the worm gear used in electric power steering by numerical formula, because gear meshing positions are largely displaced due to the structure and material. Due to this, we repeated vehicle and bench experiments and conducted countermeasures through trial and error. In order to provide a more effi cient and accurate analysis, which was a challenge during product development, we worked to create a meshing variation design tool using a fi nite element method to allow prior estimation of gear meshing variation. As a result, we have succeeded in creating an analysis technology with correlation to actual results, which makes prior estimation in the design stage possible. In addition, we have succeeded in visualizing the shared load on each tooth surface and contact position. This has facilitated the study on reduction of meshing variation and made development more efficient. |
| キーワード | electric power steering, worm gear, gear vibration, fi nite element method |
| 関連リンク | 杉浦友紀：電動パワーステアリング(EPS)減速機の芯間調整機構, JTEKT ENGINEERING JOURNAL, No.1001（2006）73.
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JTEKT ENGINEERING JOURNAL
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