用于铁路油脂润滑部件状态监测的湿度传感器系统的实验室稳健性验证

IF 0.8 Q4 INSTRUMENTS & INSTRUMENTATION Journal of Sensors and Sensor Systems Pub Date : 2024-02-14 DOI:10.5194/jsss-13-9-2024
K. Dubek, C. Schneidhofer, Nicole Dörr, U. Schmid
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引用次数: 0

摘要

摘要轴箱轴承所用润滑脂的健康状况监测可通过应用成熟的电气或光学测量原理来实现。此外,还报道了一些利用湿度传感器或介电热镜的新方法。最重要的润滑脂状态参数之一是润滑脂的含水量,因为水会使润滑脂变质,使其无法再提供适当的润滑,而且还会因腐蚀和气蚀而损坏轴承。在本研究中,介绍了一种基于市售湿度传感器的新方法,用于检测润滑车厢部件中的水分。该传感器系统的核心部件是一个安装在润滑脂润滑的货车车轴轴承周围环境中的坚固湿度传感器。在进水的情况下,油脂上方气体环境的湿度会增加,可通过定制的传感器概念轮轴轴承湿度传感器(HSAB)进行检测。由于该传感器系统必须足够坚固,因此必须能够承受环境影响因素。这些因素中最重要的是温度、相对湿度和机械负荷,如振动和冲击,具体取决于相关的铁路应用。为了在受控实验室条件下模拟这些现场影响,我们建立并采用了 "实验室到现场 "的方法。最重要的是为传感器安装开发环境,以便将实验室结果转移到相应的铁路现场应用中。因此,HSAB 系统有望提高铁路货车的可靠性,降低维护成本,从而显著减少铁路货车的停运时间。
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Laboratory robustness validation of a humidity sensor system for the condition monitoring of grease-lubricated components for railway applications
Abstract. The condition monitoring of the health status of lubricating greases used in axle box bearings can be realized by applying well-established electrical or optical measurement principles. Furthermore, some novel methods have been reported that make use of humidity sensors or of dielectric thermoscopy. One of the most important grease condition parameters is the water content of the lubricating grease, as water can degrade grease to the point that it is no longer able to provide suitable lubrication and can also damage the bearing due to corrosion and cavitation. In this study, a new approach for water detection in lubricated wagon components is presented that is based on commercially available humidity sensors. The core element of this sensor system is a robust humidity sensor mounted in the immediate atmosphere of the grease-lubricated wagon axle bearing. In the case of water intake, the humidity of the gaseous atmosphere above the grease increases and can be detected by the customized sensor concept Humidity Sensor in Axle Bearings (HSAB). As this sensor system has to be sufficiently robust, it must be able to withstand environmental impact factors. The most important of these factors are temperature, relative humidity, and mechanical load, like vibrations and shocks, depending on the relevant railway application. To mimic these field effects under controlled laboratory conditions, the “lab-to-field” approach was set up and employed. Of the utmost importance was the installation of a development environment for the sensors that enabled the transfer of laboratory results to the respective rail field application. As a result, the HSAB system shows promise with respect to enhancing the reliability of railway wagons and decreasing maintenance costs, thereby reducing the downtime of railway wagons significantly.
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来源期刊
Journal of Sensors and Sensor Systems
Journal of Sensors and Sensor Systems INSTRUMENTS & INSTRUMENTATION-
CiteScore
2.30
自引率
10.00%
发文量
26
审稿时长
23 weeks
期刊介绍: Journal of Sensors and Sensor Systems (JSSS) is an international open-access journal dedicated to science, application, and advancement of sensors and sensors as part of measurement systems. The emphasis is on sensor principles and phenomena, measuring systems, sensor technologies, and applications. The goal of JSSS is to provide a platform for scientists and professionals in academia – as well as for developers, engineers, and users – to discuss new developments and advancements in sensors and sensor systems.
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