Life Cycle Assessment of Motor Bike and Electric Bike in Urban Areas of China

Motor bikes （m-bike） and electric bikes （e-bike） are widely used in urban areas of China. Life cycle assessment of m-bike and e-bike are presented to compare their energy use and environmental emission in a life cycle span. An m-bike and an e-bike are disassembled to collect material composition data for the life cycle assessment. The results show that e-bike consumes less energy and has less global warming potential （GWP）, biochemical oxygen demand （BOD）, chemical oxygen demand （COD）, suspended solids （SS）, dissolved solids （DS）, hydrocarbons （HC） than m-bike during life cycle. But e-bike generates more solid wastes, and more acidification potential （AP）, heavy metal （HM） than m-bike. Advanced batteries and clean coal fired power plant technologies are recommended to promote e-bike use in urban area.     

摩托车架的结构优化设计

通过对某两轮摩托性能特点的分析、提出了摩托车架结构优化设计的数学模型。这是一个有尺寸上下限、应力、位移及频率约束的动力优化问题。采用了基于库恩—塔克最优性准则的迭代法求解。数值例子表明,结果令人满意。     

摩托车配件智能销售系统的设计与实现

利用BDE引擎、C builder、C＋＋、SQL编程语言在Windows98SE平台上开发出一套以导航窗、模拟购物为核心的智能化摩托车配件销售系统。该系统主要功能由销售区域、客户区域、货物查询、购物车、统计图观看器组成。     

摩托车性能测试线的计算机自动监测系统

以工业控制计算机为核心,设计了摩托车性能测试线的自动监测系统.通过检测系统的硬件接口电路设计以及数据采集、检测控制、性能分析和结果判断软件的设计,实现对车辆废气排放量测试、前后轮轮偏和刹车制动测试、车灯亮度和灯偏测试、车速测试和喇叭音量测试各子系统的监控,以及对实时数据和检测数据库的管理.