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风电机组偏航异响机理及相应处理方法的研究 被引量:1
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作者 张永婷 《装备制造技术》 2022年第4期31-33,共3页
随着风电设备机组制造的高速发展,在运营过程中出现了很多质量问题。其中偏航系统的异响振动问题尤为显著,严重的需要将风机机组设备从塔架上吊下来维修,不仅增加了维修成本,也给风机机组以后正常运行及维护带来了很大困扰;并且,偏航系... 随着风电设备机组制造的高速发展,在运营过程中出现了很多质量问题。其中偏航系统的异响振动问题尤为显著,严重的需要将风机机组设备从塔架上吊下来维修,不仅增加了维修成本,也给风机机组以后正常运行及维护带来了很大困扰;并且,偏航系统造成的振动噪声,不仅危害了风电场周围生态环境也对附近村庄居民生活有影响。因此,为了风电后续长远发展,也为了不影响风电输出电能的质量和效率,以及机组的正常运行和维护,亟待找出相应措施解决偏航系统异响振动的问题。本研究以偏航系统组成及偏航过程工作原理为基础,将偏航原理以偏航过程数学表述方法进行了表示。通过数学表述分析了影响偏航过程的因素;以影响偏航过程因素为角度,详细分析并阐述了造成偏航系统异响的机理,并对各个机理给出了相应的处理方法。以影响偏航过程的因素为角度浅析并汇总了偏航系统异响机理及相应处理方法,为风机整机制造检测及风场运维人员提供了一种有效改善偏航系统异响的方法,也在一定程度上提高了风电输出电能的质量和效率。 展开更多
关键词 风力发电 偏航数学表述 偏航异响机理 处理方法
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汽车转向粘滞异响机理分析及控制研究
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作者 梁阿南 彭锋 +2 位作者 岳法 丁宁 王丽永 《汽车与驾驶维修》 2020年第11期48-50,共3页
本论文以汽车转向系统出现的转向粘滞异响为重点,进行深入研究。针对粘滞异响的模式、机理和控制方法等方面进行剖析,提出管控策略。为新车型研发提供参考,减少客户抱怨,降低转向系统出现粘滞异响的风险。
关键词 车辆 转向系统 异响机理 控制方法 粘滞异响
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驱动轴起步倒车异响问题机理及解决措施 被引量:4
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作者 王少璋 肖俊华 +2 位作者 钱建功 蔡志林 孙利飞 《时代汽车》 2017年第9期111-112,共2页
小型乘用车在起步、倒车工况时,由于驱动轮承受冲击扭矩作用,故可能导致等速节驱动轴与轮毂轴承配合端面发生粘滑,进而发出异响。该异响与驱动轴和轮毂轴承的花键配合间隙、配合端面摩擦系数、锁紧螺母力矩等问题有关,通过优化上述因素... 小型乘用车在起步、倒车工况时,由于驱动轮承受冲击扭矩作用,故可能导致等速节驱动轴与轮毂轴承配合端面发生粘滑,进而发出异响。该异响与驱动轴和轮毂轴承的花键配合间隙、配合端面摩擦系数、锁紧螺母力矩等问题有关,通过优化上述因素,可有效消除异响。 展开更多
关键词 汽车底盘 起步倒车 异响机理 等速节驱动轴 轮毂轴承
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基于NVH测试技术的减振器咕噜声异响问题排查与机理分析 被引量:2
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作者 王大娃 丁良奇 王义领 《北京汽车》 2022年第4期26-30,共5页
结合具体案例,利用NVH测试技术对减振器咕噜声问题进行排查分析,将样件与台架测试结果以及实车验证进行比对,形成验证闭环;探索一种具有实际指导意义的减振器异响问题排查思路,并对异响机理进行分析。
关键词 减振器咕噜声异响 NVH测试 台架测试 异响机理
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Spatial Differentiation Pattern of Habitat Quality and Mechanism of Factors Influencing in Resource-based Cities:A Case Study of Tangshan City,China 被引量:6
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作者 CHENG Peng MIN Min +1 位作者 ZHAO Wei ZHAO Ke 《Journal of Resources and Ecology》 CSCD 2021年第5期636-649,共14页
The degradation of the eco-environment has been a challenge for sustainability in resource-based cities around the world.Although much attention has been drawn to this issue,few insights have been acquired regarding t... The degradation of the eco-environment has been a challenge for sustainability in resource-based cities around the world.Although much attention has been drawn to this issue,few insights have been acquired regarding the spatial differentiation and mechanism of the factors influencing habitat quality in resource-based cities from the perspective of the interactions of natural and human factors.Using Tangshan City as a case study,this paper evaluates habitat quality by integrating Ecosystem Service Value Assessment and the InVEST-HQ model,identifies the spatial distribution of Tangshan’s habitat quality with spatial auto-correlation,and explores the influencing factors and their mechanism of influence on the spatial differentiation with the geographical detector model and Space production theory.The results show that:(1)The total value of the habitat quality in Tangshan City in 2019 was 3.45×10^(10) yuan,and the habitat quality value was 24435.05 yuan ha-1.The habitat quality value presents a clustered distribution pattern of"hot in the north and the south,cold from the center to the west".(2)On the county scale,Qianxi County had the best habitat quality and Lubei District had the worst habitat quality;Shangying Township had the highest average habitat quality and Kaiping Street had the lowest average habitat quality in the township unit.(3)The results of geographical detectors show that natural environmental conditions are the important basic factors affecting the spatial differentiation of habitat quality in Tangshan City,while urbanization and industrialization factors are the most important external forces driving the spatial differentiation of habitat quality.The contributions of average elevation,average slope,raw material industrial density,and population density to the spatial differentiation of habitat quality are all above 0.40.The interactions of any two factors on habitat quality are enhanced.Areas with concentrated populations,rich industrial resources,and convenient transportation become low-value habitat quality areas;while areas with beautiful landscape patterns,abundant precipitation,and a comfortable climate become high-value habitat quality areas.Space production theory can be used to explain the mechanism of the formation of the spatial differentiation of habitat quality. 展开更多
关键词 habitat quality spatial differentiation pattern mechanism of influence geographical detector resource-based city
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