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在生产中大型制件胀形模,由于材料拉伸变形较大,往往导致制件开裂、起皱等问题.小型制件采用聚氨酯橡胶制造胀形模已得到了应用,以此为基础,对摩托车油箱这种较大零件的胀形模进行改进,用聚氨酯橡胶代替原钢制凸模,很好地解决了零件出现的缺陷,在生产中已获得了成功并投入使用. 相似文献
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Takes the motorcycle system design as the target , and researched motorcycle total scheme design and total layout design and kinetics matching optimization to design, KBE's technique , CAX's technique , PDM's technique and to target and so on technique is used in the synthesis , and intelligent CAD/CAE's system of the motorcycle system design work distance traveled by a stream of water and the architectural structure and integrated technique of every application sub system meritorous service capacity composition and CAD/CAE/CAT has been underway research, Open up a model system , and still unite the fund motorcycle produce development , and verifies. 相似文献
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An original variable valve timing mechanism with two-mode intake timing was developed according to the structural characteristics of small medium displacement motorcycle engine. Based on cycle simulation, the effects of the VVT mechanism structural parameters, control parameters and operational parameters on the engine performance were analyzed by embedding the VVT mechanism operational mode and control strategies in the engine cycle simulation. Optimum design for the late intake valve closing, the valve lift, as well as the switching speed of the VVT system was carried out. It has been proved that power and torque of the JH125 motorcycle engine can be effectively improved by loading the new type VVT system. 相似文献
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According to the urgent need for motorcycle parts enterprise to improve the ability of information exchange and business collaboration between the production process and other links such as the marketing, design, production planning, outsourcing, purchasing and delivering, an integration framework of the intergraded workshop production management system for motorcycle parts enterprise is presented. It can be integrated with the designing and production planning management systems upwards, the workshop equipments and workers downwards, and the subcontract production and supply chain management systems outwards. Then, some key technologies are studied, such as the realization scheme of system integration based on Service Oriented Architecture (SOA), the data integration and sharing mechanism of heterogeneous information system based on eXtensible Markup Language (XML), and the real-time interaction technology of workshop information based on the multi-functional interactive information terminals, etc. Finally, the system is developed and successfully applied in a motorcycle parts enterprise, and good results are obtained. 相似文献
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设计的摩托车防盗点火系统由遥控器、主控制器、传感器和报警器组成。主控制器将防盗与发动机点火融合在一起,用一块单片机进行集中控制,使用软件进行密码识别和发动机的点火控制。单片机控制发动机点火时,利用硬件将点火触发信号比传统CDI点火触发信号提前30～50°CA,然后再用软件将点火时间修正到正确的点火时刻。经试验结果表明,该防盗点火系统运行可靠,系统抗干扰能力强,防盗效果好。 相似文献
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Sensitivity analysis of motorcycle frames is useful for improving the design success rate. Based on sensitivity analysis theory and using the Monte Carlo and numerical simulation methods, a new 250 type integral motorcycle model was built and dynamic sensitivity analysis conducted. Sensitive design parameters that have great influence on frame vibration were discovered. By modifying the values of sensitive design parameters, the vibration of some measuring points was reduced. This reduction shows that the sensitivity analysis method is reliable and practical, and it can be used in sensitivity analyses of other complicated structures. 相似文献
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The authors summarize the emerging backgroun technology, development trend of green remanufacture. The d, definition, current situation in China and aboard, key signification to establish industrialization integration-base of automobile and motorcycle of Chongqing. According as current scale, technological level, development trend of automobile and motorcycle industry of Chongqing, the feasibility to establish industrialization remanufacture-base of automobile and motorcycle of Chongqing is analyzed. 相似文献
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An original variable valve timing mechanism with two-mode intake timing parameters is developed according to the structural characteristics of small-medium displacement motorcycle engine. Based on cycle simulation, a cycle simulation model of VVT mechanism for motorcycle engine is created. The control strategy of variable valve timing and lifting running-model are carried out at idle speed low negative load, middle negative load, low speed high negative load and high speed high negative load. It has been proved that the performance of JH125 motorcycle engine can be effectively improved by loading the new type VVT system. 相似文献