随机路面下轮毂电机偏心对电动汽车平顺性影响

为了分析轮毂电机偏心对电动汽车平顺性的影响，建立了考虑轮毂电机质量和轮毂电机激励的电动汽车平面4自由度振动模型，推导出相应的状态方程和输出向量表示，确定了平顺性评价指标.采用滤波白噪声方法建立了随机路面前轮激励，将Laplace变换和4阶对称Pade逼近相结合获得了随机路面后轮激励与随机路面前轮激励的关系，给出了典型的四相8/6极开关磁阻电机整体垂向激励的表示.实现了随机路面激励和轮毂电机激励的仿真，在B级路面上进行了4种工况的随机路面平顺性仿真和比较.结果表明，轮毂电机偏心对随机路面下电动汽车平顺性有着不可忽视的影响，设计电动汽车时需要考虑轮毂电机偏心引入的负效应.     

人体热舒适的模糊综合评判

人的热舒适受多种因素的影响，是一种模糊的随机变量，因而对人体热舒适的评判本身就是一个模糊的概念，笔者分析了影响人体热舒适的因素，并对其进行了简化，在此基础上，应用模糊数学的基本理论，提出了人体热舒适模糊综合评判算法。模糊综合评判解决了评判标度的连续化问题，从而减小了常规评判方法的投标的不确定性，还对模拟仿真结果进行了分析比较，仿真结果表明数值实验结果同预测平均投标指标事较好，为客观评价人体热舒适提出了一种方法和思路。     

Indoor Thermal Environment of Korean Rural Housing Yanbian Region of China in Winter

For the rural housing in Yanbian region in winter,the indoor thermal environment is bad but the energy consumption is high.And in order to solve the problem,the life particularities of the local residents,such as the inhabitation custom and the different living ways,were analyzed.The comfortable temperature felt by the local residents was surveyed and summarized according to different age's stage.The subjective comfortable tem-perature was calculated by using the thermal comfort formula set up by D.A.Mcintyre.The result shows that the comfortable temperature between the survey and the calculation is different.After analyzing the survey and the resdt ealculatiom,the range of local indoor comfortable temperature was given,which provides a reference basis for calculating the thermal comfort and energy efficiency as well as designing green rural houses.     

Thermal Comfort in Waiting Room at Railway Station in Cold Region in China

A field study and analysis about the thermal comfort was carried out in the waiting room at Bei-jing West Rail Station in Chinese cold region.Passengers'TSV(thermal sense vote) was obtained using statisti-cal method on the basis of more than 1200 questionnaires.The linear regression between TSV and indoor tem-perature indicates that thermal neutral temperature is 25.2℃.According to the percentage of satisfaction a-mong all passengers under different indoor temperatures,the acceptable temperature range in the waiting room is 24.2～30.2℃.It is also found that passengers'temporary stay should be taken into consideration for the ther-mal comlort analysis.Passengers'TSV is not a constant value after they enter the waiting room.In fact,△TSV increases as passengers are waiting for the train.and the growing rate is dependent on indoor-outdoor tempera-ture difference.The greater the temperature difference,the faster △TSV increases.At last, a linear regressionbetween indoor comfortable temperature and outdoor temperature was generated as the adaptive comfort model.