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现有针对汽车乘坐舒适性评价的研究主要包括人体对振动的感受程度。人体对振动的感受程度受多种因素的影响,根据普通概率统计和简单二值逻辑原则给出的振动舒适性无法反映这些不确定因素。因此,采用人对振动主观反应的模糊随机评价模型,从心理物理学的角度对这些不确定性进行分析。对传统车辆振动时的乘坐舒适性评价方法进行讨论。提出一个以烦恼率为基础的模糊随机评价模型用于人体对振动的主观响应。借助于Matlab/Simulink软件,表述一个四自由度的受到不规则路面激励的半车模型。提出一种关于汽车乘坐舒适性的新的评价方法——烦恼率评价方法。采用遗传算法神经网络与神经网络控制算法对系统进行控制。分别基于ISO 2631/1(1982)、ISO 2631-1(1997)和所提烦恼率评价方法进行仿真模拟,包括控制前后人体对振动的反应对比、烦恼率随着振动频率与加权加速度均方根值的变化。模拟评价结果表明,所提出的主动悬架系统在振动控制方面是有效的,可以将人的生观反应由十分不舒适提升到略有不舒适,而且基于烦恼率的新评价方法可以进一步定量地估计由于振动感到不适的乘客人数。提山了一个关于汽车行驶平顺性的新的分析方法。
The existing studies on vehicle ride comfort mainly include how much the body feels about vibration. The extent to which the human body feels vibration is influenced by many factors, and the vibration comfort given by ordinary probability statistics and simple binary logic principles does not reflect these uncertainties. Therefore, using the fuzzy random evaluation model of human subjective response to vibration, these uncertainties are analyzed from the perspective of psychophysics. This paper discusses the evaluation method of ride comfort when traditional vehicles vibrate. A fuzzy random evaluation model based on annoyance rate is proposed for subjective human response to vibration. By means of Matlab / Simulink software, a four-degree-of-freedom half-car model inspired by irregular pavement is presented. This paper presents a new evaluation method for car ride comfort - annoyance rate evaluation method. Using genetic algorithm neural network and neural network control algorithm to control the system. The simulations were performed based on ISO 2631/1 (1982), ISO 2631-1 (1997) and the annoyance rating method, respectively, including the comparison of the responses of the human body before and after vibration to the vibration. The annoyance rate increases with the vibration frequency and the weighted root mean square Value changes. The simulation results show that the proposed active suspension system is effective in vibration control, which can elevate the human observational response from uncomfortable to slightly uncomfortable, and the new evaluation method based on the annoyance rate can be further quantitatively Estimate the number of passengers who feel uncomfortable due to vibration. Suggest a new analysis of the ride comfort of a car.