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| 題 名 | 捷運鋼軌鋼輪系統車輛之減噪車輪及相關技術介紹=Introduction of Noise-Reduction Wheels and Related Technology Applied to MRT Trains |
|---|---|
| 作 者 | 蘇培坤; | 書刊名 | 捷運技術 |
| 卷 期 | 43 2010.08[民99.08] |
| 頁 次 | 頁69-96 |
| 專 輯 | 環狀線機電系統規劃設計專輯 |
| 分類號 | 442.96 |
| 關鍵詞 | 減振車輪; 吸振器; Damped wheel; Vibration absorber; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 本局目前興建中之環狀線捷運系統是屬小轉彎半徑線形之鋼軌鋼輪捷運系統,這些路 線將通過高人口密度之都會區,因此,捷運噪音將是未來營運單位所需面臨的環境公害問 題,如果能在捷運規劃建設階段妥為因應處理,將來才能消弭民怨。尤其環保署99年1月 21日所頒布陸上運輸系統管制標準中,除了維持原均能噪音限值外,另新增了最大噪音限 值之管制。對於採用鋼軌鋼輪之捷運系統中,噪音之主要來源包括土木結構、輪軌、電動 馬達、齒輪箱、電控設備、空壓設備及空調設備等,對於車速在50公里/小時~120公里/小 時之軌道車輛,輪軌噪音是噪音的主要來源,而輪軌噪音起因於輪軌接觸,造成車輪、軌 道、軌枕及軌道扣件振動,進而輻射產生噪音,特別在彎道附近更易產生高頻之尖銳噪 音,傳統之輪軌設計將不容易滿足新的噪音法規,因此,廠商必須同時針對軌道與車輛設 備採用降低噪音之設計,包括彈性鋼軌、道旁潤滑器、浮動道床及車輪減振設計(如減振 環、彈性車輪、吸振器或其他減振技術)來降低輪軌噪音源。由於國內並未有使用相關車 輪減振設計之經驗,因此,本局曾於99年9月參訪日本、德國及義大利之車輪製造商與國 外捷運系統,以了解採用減振輪軌設計之情形與降低噪音之成效,並參加柏林Innotrans國 際大眾交通運輸專業展,蒐集國外針對降低捷運噪音技術之方式及相關資料。本文謹就減 噪車輪及相關技術作一介紹。 |
| 英文摘要 | The Circular line, currently under construction, will be a rapid transit system with steel wheel trains running on steel rails with small radius curves. The route will pass through heavily populated urban areas, so noise will surely pose an environmental problem in the near future when the line opens for service and countermeasures should be put forward early in the planning stage so as to reduce complaints from the general public. In particular, a new noise control standard enacted by the EPA on January 21, 2010 stipulates that not only original average noise (Leq) limits but also an Lmax noise limit that should be followed simultaneously. For an MRT system with traditional steel wheel trains running on steel rails, the main sources of noise are the construction structure, wheel-rail, motor, gear box, power pack, air compressors, air conditioning equipment, etc. For trains running at speeds form 50km/hr to 120km/hr, the main noise source arises from wheel-rail contact that generates vibrations from wheels, tracks, sleepers, and rail fasteners, especially high frequency squeal sounds that arise in narrow curve areas. It is difficult for conventional steel wheel designs to meet new noise control standards. Therefore, when thinking about noise reduction, manufacturers must take both track and vehicle equipment into consideration. Potential designs include damped rail, trackside lubricator, floating slab track, damped wheel, vibration absorber, and other technologies. Being short of experience in wheel noise reduction design, a group from DORTS visited wheel manufacturers and rapid transit systems in Japan, Germany and Italy in September 2010 to further know about noise reduction design and the effectiveness of damped wheels. They also made a detour to attend the Innotrans exhibition held in Berlin to look at noise absorption and reduction technologies, and collect relevant information. This article gives an overall introduction of the trip with the hope of helping readers to better understand noise reduction design technology. |
本系統中英文摘要資訊取自各篇刊載內容。