頁籤選單縮合
題名 | A Preliminary Prediction Model on Railway Noise for Western Railway in Taiwan=鐵路噪音之預估模式 |
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作者 | 陳國在; 陳永祥; 許志彰; | 書刊名 | 中華民國音響學刊 |
卷期 | 3:1 1995.05[民84.05] |
頁次 | 頁107-122 |
分類號 | 442.83 |
關鍵詞 | 鐵路噪音預測模式; 臺灣地區; |
語文 | 英文(English) |
中文摘要 | 本文探討鐵路噪音預測模式,係對臺灣地區的鐵路系統作其最大音量位準(Lmax) 預測,並以此最大音量的預模式,計算其相關的均能音量位準(Leq)。此模式的基本假設 為軌道狀況良好,且噪音的主要來源係由於輪軌互動效應,由此假設出發進行理論的推導 ,並藉實際量測的結果進行迴歸分析,得一半經驗之預測模式。 本文針對臺灣地區的鐵路系統,因列車種類的特性差異,考慮四種不同列車的預測模 式,即自強號、莒光號、復興號及普通車。此外由於地面效應的影響,各種列車又分遠軌 、近軌兩種不同的模式,因此即有八個不同的預測模式。經由實測值與預測值的比較結果 ,本文提供的預測模式,均能得到相當好的準確性。 |
英文摘要 | This paper is a preliminary study on the prediction model of railway noise for western railway of Taiwan. The content of this study includes the review on some foreign models to predict their corresponding high speed railway noises, the derivation on the model for the prediction of the maximum railway noise level (L )in Western Taiwan, the actual measurement of railway noises corresponding to the four conventional types of train traveling on western railway of Taiwan and their corresponding regression analysis to determine the required models. Meanwhile, three assumptions that railway is straight, is in its-best situation and the main acoustic source to produce the involved railway noise is the interac- tion of railway with wheel of train are also used in this study to simplify the procedure of determining the required models. Also, this study specially considers the corresponding prediction models of both the nearer and further railways from the receiver. And the comparison of the actual measurement with those of prediction clearly shows that the prediction model provided by this study can satisfactorily be used for the prediction on the railway noise in Western Taiwan. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。