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利用SVM的汽车复合制动舒适性分类模型
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作者 马文斌 陈庆樟 刘忠 《现代制造工程》 CSCD 北大核心 2013年第11期43-46,共4页
为了描述汽车复合制动(电动机制动与液压制动复合)在制动模式切换时对驾乘人员舒适性的影响,提出了一种制动舒适性建模方法,利用主成分分析提取采集数据中对舒适性贡献率较大的因子组成特征向量,利用支持向量机(SVM)建立汽车复合制动舒... 为了描述汽车复合制动(电动机制动与液压制动复合)在制动模式切换时对驾乘人员舒适性的影响,提出了一种制动舒适性建模方法,利用主成分分析提取采集数据中对舒适性贡献率较大的因子组成特征向量,利用支持向量机(SVM)建立汽车复合制动舒适性分类回归模型,在参数匹配的情况下,使用不同的核函数对复合制动的舒适性分类均取得了较好的分类结果,由于SVM的小样本泛化能力,其最低正确率仍然较高,据此认为利用支持向量机建立汽车复合制动舒适性分类回归模型是可行的,对汽车研发过程中参数校调具有实际的意义。 展开更多
关键词 复合制动 舒适性建模 支持向量机
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汽车复合制动舒适性模型问题的研究
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作者 马文斌 陈庆樟 刘忠 《制造业自动化》 北大核心 2013年第7期82-85,共4页
为了描述汽车复合制动(电机制动与液压制动复合)在制动模式切换时对驾乘人员舒适性的影响,提出了一种制动舒适性建模方法,利用主成分分析提取采集数据中对舒适性贡献率较大的因子组成特征向量,基于叶斯正则化BP网络建立复合制动舒适性模... 为了描述汽车复合制动(电机制动与液压制动复合)在制动模式切换时对驾乘人员舒适性的影响,提出了一种制动舒适性建模方法,利用主成分分析提取采集数据中对舒适性贡献率较大的因子组成特征向量,基于叶斯正则化BP网络建立复合制动舒适性模型,用于汽车复合制动参数验证性校调。回归分析表明,相对传统的梯度下降法BP网络,贝叶斯正则化模型收敛速度较快,预测精度较高,具有较大的推广价值。 展开更多
关键词 复合制动 舒适性建模 贝叶斯正则化
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Effects of personal heating on thermal comfort:A review 被引量:1
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作者 TIAN Xiao-yu LIU Wei-wei +2 位作者 LIU Jia-wei YU Bo ZHANG Jian 《Journal of Central South University》 SCIE EI CAS CSCD 2022年第7期2279-2300,共22页
Personal conditioning system(PCS)is receiving considerable attention due to its energy-saving potential and the ability to satisfy individual comfort requirements.As a part of PCS,personal heating systems can maintain... Personal conditioning system(PCS)is receiving considerable attention due to its energy-saving potential and the ability to satisfy individual comfort requirements.As a part of PCS,personal heating systems can maintain human thermal comfort in cold environments,which leads to their potential role of important heating mode in cold winter,especially in the Hot Summer and Cold Winter regions of China.In order to better promote the development and application of personal heating systems,this paper reviews the published studies.Personal heating systems can be divided into four types based on the mode of heat transfer:conductive,convective,radiative and combinative type.Characteristics of each category and respective devices are introduced.Furthermore,identifying the effects of personal heating on thermal comfort and the models for predicting or evaluating thermal comfort during local heating.This paper would provide users with a guideline for choosing suitable heating equipment during winter. 展开更多
关键词 personal conditioning system personal heating thermal comfort evaluation models built environment
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Evaluation on Pipao' s Construction Comfort by Fuzzy Theory
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作者 WU Ningning CONG Shan 《International English Education Research》 2016年第2期40-42,共3页
Comfort is one of the most important attributes demanded by bra consumers. It reflects the psychological feeling of a wearer.Different kinds of knitted fabric are chosen as bra samples in this paper. This subject stud... Comfort is one of the most important attributes demanded by bra consumers. It reflects the psychological feeling of a wearer.Different kinds of knitted fabric are chosen as bra samples in this paper. This subject studied the bra's comfort sensations by carrying out a series of subjective wear at temperature at 21± 2℃ and humidity of 65±3%. By exploratory analysis of the subjective ratings on 3 mainly sensory factors (thermal, moisture and tightness), the relationships between 3 factors are studied under three conditions, before, during and after movement. This study is focused on subjective evaluation ofbra' s comfort sensations of made of different knitted fabrics. Finally, based on fuzzy theory, the comprehensive comfort sensations of these fabrics in different wear conditions are analyzed and evaluated. 展开更多
关键词 Bra' s Comfort Sensations Fuzzy theory Subjective evaluation Knitted fabrics
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