接触网锚段关节线形分析与计算

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Abstract Research purposes: The installation and adjustment methods and the technology level of the anchor segment joint of catenary in construction of passenger dedicated line are crucial to the operation quality of the pantograph and catenary． The installation and adjustment of the anchor segment joint are always the difficult points in construction due to its complex structure and being in the key location． At present，the manually simulation adjustment is commonly used for it in China． In this way，it takes long time，it is very difficult to ensure the quality and it is unavailable for the technical requirements of the railway development in China． Research conclusions: According to the actual working state of the catenary suspension after the installation，the optional schemes are proposed for adjustment linear of the anchor joint suspension of the catenary． From the analysis of the loading in the micro － segment of the contact wire，it is believed using the secondary parabola for transition is an ideal choice，and based on it the computating model is established． The applications of it in construction of Wuhan － Guangzhou and Beijing － Shanghai passenger dedicated lines shows with this method the accuracy of the dropper is excellent without adjustment after installation，and the test results can meet the track test requirements and the operational requirements．

Key words： catenary linear analysis dropper calculation mathematical model

Received: 22 August 2011

PACS:

U227． 3

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2012/V29/I5/49