Substantiation for allocation of means for thermal control of axle boxes within the non-stop trains movement sections

Mironov, A. I.; Obraztsov, Valentin Leonidovich; Saltykov, Dmitriy Nikolayevich; Pavlyukov, Alexander Eduardovich

doi:10.20291/1815-9400-2016-2-55-61

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2018

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“…In case of long-term braking more homogenous heating of the wheel with significant growth of the rim temperature up to 305°С is observed when using composite brake shoes. The obtained results correlate well with the known studies [11,12]. It is obvious that the most informative thermal control zone for HCS application is the zone of wheel profile.…”

Section: Resultssupporting

confidence: 89%

Simulation of wheel heating when drum braking

Mironov¹,

Shalupina

Pavlyukov

et al. 2018

MATEC Web Conf.

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Application of heating control systems is rational for effective prevention of thermal-mechanical damages of the wheels and brake shoes of rolling stock. These systems enable to perform diagnosis of brake equipment elements and to evaluate the effectiveness of drum braking process in terms of wheel heating. The present study aims to assess wheel heating when drum braking and to define the most informative zones and threshold control values for heating control systems. Heating evaluation is conducted using finite element method under different braking modes. Research results are given as heating patterns in solid-rolled wheel of freight car; the influence of the air distributor mode on the wheel heating is considered, the most informative zones for heating control are identified.

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Section: Resultssupporting

confidence: 89%