重型車輛懸吊系統配置型式對柔性鋪面平坦度影響

The Flexible Pavement Roughness influence by Heavy Vehicle Suspension system configuration

莊元拔(Yuan-Ba Chuang)

指導教授 ： 周家蓓

國立臺灣大學/工學院/土木工程學研究所/碩士(2012年)

https://doi.org/10.6342/NTU.2012.10720

摘要

自1998年起，臺灣因車輛法規的修訂，正式開放5軸以上的聯結車輛可於合法情況下載運更多的貨物噸數。因應法規的變動，部分的運輸業者開始針對現有車輛進行軸組配置型式的改造，特別是在尾車軸組前後加裝一組具有舉升能力的車軸，其目的為於空載時可舉升車軸，節省輪胎消耗。但礙於空氣懸吊系統及鋼板懸吊系統初置成本差異極大的影響，多數業者僅在舉升軸部分選用空氣懸吊系統，其他兩軸皆選用鋼板懸吊系統。但根據國外多年的研究結果，在單軸同載重噸數狀態下，氣懸系統對道路的動態荷載遠比鋼板系統減少10~20%的道路負載。因此本研究將利用卡車動態模擬軟體TruckSim8.0及道路鋪面殘值估算軟體MEPDG2002，探討國內在各式本土車型聯結組合條件下，在同一車輛裝設不同的懸吊系統，對同一柔性鋪面國際道路平坦度指標IRI 為3.19m/km 生命週期的影響，進而獲得在現行法規規定下，定義出對路面較友善及不友善的車種。

關鍵字

柔性鋪面 ； 道路平坦度 ； 國際路面糙度指標 ； 重型車輛 ； 空氣懸吊系統 ； 鋼板懸吊系統

並列摘要

Since 1998, Because of the revision of the Taiwan Vehicle Regulation, more than 5axle articulated vehicle that can formal load more goods ton under the legal situation. In conformity with the regulation change, someone cargo transporter starting re-build their current trailer, especially add a lift axle which behind of or in front of on current axle bogie. That can reduce tires wear when the axle lifted up for the trailer running with empty load situation. But Air Suspension system initial cost was most expensive than leaf spring suspension system, so most of Transporters only applied air suspension system on lift axle, other axles keep using original leaf spring suspension system. According to foreign countries study result of many years, if the single axle unit have same load state, using air suspension system will decrease 10~20% dynamic load on the road when it compare with leaf spring suspension system. For this reason, we will use Truck dynamic Simulate Software – TruckSim8.0 and Road Pavement surface value evaluation software- MEPDG 2002 that can study when the different Tractor types combined with different Trailer types in our local country, the trailer has assembly different type suspension system of the different axles, and running on a same road section that the International Roughness Index condition is limit on a 3.14m/km, which kind of assembly will cause reducing road surface life cycle. Following this result, we can try to definition Road-Friendliness Vehicle and Non Road-Friendliness Vehicle in our country.

並列關鍵字

Flexible Pavement ； Road Roughness ； International Roughness Index ； Heavy Vehicle ； Air Suspension ； Leaf spring Suspension

參考文獻

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31. 葛孝萱，鋪面績效整合與孔蓋平坦度特徵之研究，臺灣大學土木工程學研究所碩士論文，2009年

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