共查询到17条相似文献,搜索用时 62 毫秒
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分析了DF12型机车运行时的主要噪声源及布置情况,详细介绍了司机室吸声、隔声原理和采取的措施,以及进一步改进的措施。 相似文献
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指出为了司机工作方便、减轻其劳动强度及保障行车安全,需对机车司机室进行周密的设计。运用人机工程学原理深入探讨了机车司机室优化设计问题。 相似文献
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通过计算分析以前DF7型机车司机室通风系统存在的缺欠,提出了DF7G型机车司机室空调系统新的设计理念。通过改进风道设计等,使DF7G型机车司机室空调系统通风得到改善,实际运用表明效果良好。 相似文献
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CKD9B型机车是大连机车车辆有限公司为新西兰国家铁路(Kiwi Rail公司)开发研制的客、货运内燃机车,其车体为双司机室外走廊式底架承载。介绍了司机室钢结构的设计及有限元分析,同时对司机室相关结构和设备布置进行了人机工程分析。 相似文献
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以检验资料、使用情况为依据,详细介绍了KPB-3J憎水型轻质矿物棉复合板的容重、导热系数、释放气体分析及毒性、吸声性、防水性、工艺性、适用性等方面的良好性能特点,并与离心式超细玻璃棉板做了简要的对比,认为KPB-3J憎水型轻质矿物棉复合板值得在各型号机车、动车、城轨车辆等的司机室内推广使用。 相似文献
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在分析青藏铁路沿线气候的基础上,利用人-机-环境理论,研究青藏铁路(格拉段)机车司机室环控系统设计参数,包括新风量、供热量、供氧量,为设计机车司机室环控系统提供依据。 相似文献
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大功率内燃机车司机室内部装饰设计 总被引:1,自引:0,他引:1
介绍了大功率内燃机车司机室内部装饰的设计。该装饰采用PC板材料,达到了美观大方、易于维修调整、方便实用的功能,并提高了机车产品的市场竞争力。 相似文献
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1 问题的提出 我厂于2002年开始实施规范化司机操纵台设计,迄今为止,已完成DF11、DF8B、SS7E、SS3B等机车的规范化司机操纵台的设计及研制。实践证明,规范化后的司机操纵台在总体布置效果上较以前有很大的提高,整个司机操纵台显得简洁明了。但由于规范化司机操纵台的开发及 相似文献
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A first stage study of some factors which influence the thermal behaviour in an atrium for the summer comfort are carried out. These analysis help in the early design stage decision to authorise and optimisation of the design parameters of a bioclimatic atrium and to find how good balance between energy saving and comfort conditions 相似文献
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教室内的温度、相对湿度和空气流速对学生的健康和学习起着至关重要的作用,在2019年的夏季采用主观问卷调查对上海某高校教室内的操作温度、相对湿度与空气流速舒适感进行评价,并提出了综合舒适评价指标。建立了单个物理参数的无量纲函数,并利用向量相似度法计算出操作温度、相对湿度与空气流速对综合舒适评价指标的影响权重分别为0.462,0.291,0.247,通过代换合成法建立了基于操作温度、相对湿度和空气流速的人体综合舒适评价模型。利用控制变量法将三种评价指标两两组合,验证各评价指标对综合舒适评价指标的影响程度,得出操作温度偏离其所在舒适区时,引起的综合舒适度评价值变化量越最大,既而成为影响综合舒适评价指标的主导因素。结合了向量相似度法和代换合成法的综合舒适度评价模型,完全基于数据驱动,摆脱了传统热舒适模型的框架,更能体现出受试者的实际舒适感。这可为制定教室环境综合舒适度定义及相关标准的修订提供参考,同时可为教室热环境的热环境设计参数、评价与设计提供合理依据,减少能源浪费。 相似文献
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The present paper focuses on the issue of thermal comfort adaptive criteria and its relevance to the implementation of passive design strategies, in the context of a field work carried out in Portugal. This field work involved monitoring and questionnaires in office buildings existing in Lisbon, as well as other types of buildings, such as homes for the elderly and educational buildings, during summer, winter and mid-season. 相似文献
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《Applied Thermal Engineering》2001,21(9):899-915
In this paper, a mathematical model for a counterflow wet cooling tower is derived, which is based on one-dimensional heat and mass balance equations using the measured heat transfer coefficient. The balance equations are solved numerically to predict the temperature change of air and water, as well as the humidity as a function of the cooling tower high. Experimental measurements on two pilot-scale cooling towers were carried out in order to analyze the performance of different cooling tower filling materials. Also, the performance of other cooling tower elements, such as droplet separators and water spray nozzles, was investigated in the pilot experiments. The flow distribution, i.e. the velocity field, upstream to the filling material was predicted using the three-dimensional version of the computational fluid dynamics (CFD) code Fluent/uns, version 4.2. The calculated flow fields are presented for different distances between the inlet of the air and the filling material. In addition, the two-dimensional version of the CFD code Fluent/uns, version 4.2, was applied to predict the external airflow around the cooling tower and the backflow in different weather conditions in summer and winter. The research project was carried out in connection to an industrial cooling tower installation. 相似文献