路面铣刨机深度控制系统应用技术

通过分析铣刨机深度控制的必要性，介绍了铣刨机深度控制系统的组成及工作原理，并提出了使用深度控制系统时的注意事项。     

装载机转向液压系统故障诊断与排除

由于液压系统问题导致转向系统发生故障是装载机使用中的常见现象。介绍了装载机的五种常见故障，详细分析了故障的产生原因，并提出了问题的解决办法。     

The Trends and Tasks of Modeling and Simulation for Reduction of Heat Treatment Distortion

IntroductionTherearemanyfacorswhichinfluencethedistortonofworkpieceandeveryheattreatInentengineerssWandtrytofindordevelopmodelsandsimulationmethodstoestimateandreducedistortonorwarpage.VariousmodelshavebeenandbeinginvestigatOdtoestimatetheinduenceoffacorsontfansformahonkinetics,hardness,residualstressanddistOrtionarerCPortCdatmanyconferences,.HowevefHEARTS[l]andafewofothermodelshavebeendeveloPedandcontrthutingtounderstandandPredicttheialluenceofrelatngfacors[2-1o].EVenstillmanyhazardous…     

王冠盖PVC内衬垫材料与设备适应性改进

针对大连制盖厂１９９１年引进设备－－ＩＮＰ胶体热模塑衬垫机的模压头与原引进生产线的自动冲床的冲头不配套，导致注衬垫时内衬垫材料外溢，影响瓶盖的密封性能这一问题，通过改进内衬材料配方和高速模塑压头，成功地解决了这一问题。     

Development and performance analysis of an automotive power seat for disabled persons

As the number of disabled people grows, independence and mobility become a priority for those individuals. To achieve this goal, a ‘Turny-type power seat’ was developed in this study to assist a disabled person rise from a vehicle without trouble. The design and modeling of the power seat were performed using AutoCAD and CATIA software. The major motions of the power seat system are swiveling, sliding, and extending, which are accomplished primarily by DC motors, chains, and gears. Most of the power seat parts were made from mild steel. Welding technology was used throughout the frame fabrication. To ensure the safety and stability of the power seat, various tests were performed, and the results analyzed. The static analysis of the power seat was carried out by ANSYS 11.0. The results showed that the power seat conformed to the Americans with Disabilities Act (ADA) standards. The durability test was performed by repeatedly rotating and sliding the power seat under loading conditions. Dynamic crash simulation was carried out using the LS-DYNA software. The durability test ensured a longer life of the power seat, while the crash analysis showed a small rotational distortion that was not harmful to passengers. However, the front seat had a slightly larger forward displacement, which was not comfortable for passengers. Therefore, further modifications of the power seat should be done to improve the performance, with attention given to the reduction of the forward displacement in the event of a crash.     

基于卡尔曼滤波的机械振动信号建模和预测

机械设备的振动信号包含了其运行状态的许多宝贵特征。现利用卡尔曼滤波技术来研究振动信号的预测问题，详细阐述了卡尔曼滤波预测模型和具体递推算法。并利用建立的卡尔曼振动预测模型对某实测振动信号通过Matlab编程进行预测仿真。仿真结果表明：使用卡尔曼滤波对振动信号进行建模预测可以获得较高的精度，同时兼有良好的实时性。     

吊盖式活顶棚车的研制

介绍了吊盖式活顶棚车的研制过程，主要技术参数、结构性能及试验情况。