为了满足市场对占地面积小,能源利用效率高,一机多用的需求,设计一种智能模块式农作物干燥装置.本装置采用模块化设计,可以使其因地制宜的拼接多组模块,既可满足普通农民的基本需求,也适用于大型仓库的干燥与存储.此款智能农作物干燥装置既可以干燥农作物,也可以储存农作物,减少了转移至粮仓的过程,降低了成本,保证了农作物的安全储藏.

大数据时代,给高校教育工作者带来了新的机遇和挑战.在分析大数据对高校创新教育影响的基础上,阐述了大数据时代教育方式、方法的改变,并指出当代的教育方法和教学模式应紧跟时代步伐,利用大数据的分析结果结合实际合理转变教育模式.

针对地方应用型高校工科专业创新创业教育资源不足、创新创业教育难落到实处、学生创新创业能力亟待提升的现状,从强化创新创业教育理念、构建教育体系、优化实践教学体系、改革教学方式、搭建产学研协同创新创业教育平台、加强师资队伍建设、建设支撑体系等方面提出了具体措施和建议.

Based on the analysis of the control strategy of the hydraulic motor driving load tracking servo motor system, the mathematical model of the control relationship of the hydraulic motor tracking servo motor is established, and the PID parameter setting combined control algorithm is adopted. The tracking control strategy driver is simulated based on the mathematical model. The results show that the main synchronous performance parameters of the hydraulic motor tracking servo motor compound drive control system are in good condition, which provides a basis for the design of the test system of feedback tracking control.

工程能力培养不足造成"学用落差""人才供需失衡"问题突出,如何提升课程品质,达成培养目标,满足企业需求,一直是各高校深切关注的问题.以成果导向教育理念和CDIO教学模式为指导,以"知识、能力、素质"一体化培养为目标,针对地方院校机械"卓越工程师"培养要求,重构培养目标、培养标准,构建"以项目实施为主线、课程群为支撑、实习及实训"有机融合的三级项目式课程体系.实践表明,该体系有利于培养学生的工程能力,提升培养质量,实现"学用合一",促进教学与就业双贏.

机床导轨是机床各主要运动部件的基准,它的动态特性将直接影响到机床的加工精度,以某型号高精密、大阻尼导轨为研究对象,采用垂直悬挂激振器的方法对该导轨进行动刚度/动柔度进行测试,得到其动态特性相关曲线,结果表明减振效果显著,为该型号的数控机床导轨的评价、设计与改进,提供强有力的数据支撑.

Artificial Intelligence Science and Technology, pp. 792-798 (2017) No AccessModeling and Simulation of the Compound Servo System with Servo Motor and Hydraulic MotorZe-Ming LONG, Bao-Jin GUAN, Guang-Jun CHEN, Hao-Yu LI, and Shi-Qing GUOZe-Ming LONGCollege of Mechanical Engineering, Jiamusi University, Jiamusi Jiamusi, Heilongjiang province, China, Bao-Jin GUANCollege of Mechanical Engineering, Jiamusi University, Jiamusi Jiamusi, Heilongjiang province, China, Guang-Jun CHENCollege of Mechanical Engineering, Jiamusi University, Jiamusi Jiamusi, Heilongjiang province, China, Hao-Yu LICollege of Mechanical Engineering, Jiamusi University, Jiamusi Jiamusi, Heilongjiang province, China, and Shi-Qing GUOCollege of Mechanical Engineering, Jiamusi University, Jiamusi Jiamusi, Heilongjiang province, Chinahttps://doi.org/10.1142/9789813206823_0099Cited by:0 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail Abstract: The control strategies of electric-hydraulic servo drive control system was study in this paper by the analysis of hydraulic motor tracing and unloading AC servo motor load characteristics. In addiction, the method of PID control algorithms and PID parameter tuning combination was used to establish the mathematical models which meets the unloading track drive control relationships. And Matlab software was used to carry out the simulation. Simulation results showed that compound servo drive control system of the performance parameters of the bearing and synchronicity was in a good condition, and the results provide the basis for control design of the large load servo drive equipment. Keywords: Compound Servo DrivePID Control AlgorithmMathematical ModelingSimulation FiguresReferencesRelatedDetails Artificial Intelligence Science and TechnologyMetrics History KeywordsCompound Servo DrivePID Control AlgorithmMathematical ModelingSimulationPDF download

针对如何培养学生综合实践能力与创新能力这一课题,结合专业特点,从课程实验、专业设计和实习实训创新设计三个环节构建了机电专业实践教学体系;并从师资建设、教学平台建设、规划监督和评估体系几方面提出了实践教学的保证体系。通过实践教学体系的实施,提高了学生实践能力和创新设计能力。

介绍了一种新型的基于单片机控制的复合驱动系统.该系统控制器利用51单片机和AD、DA以及串行口较少的外围硬件连接电路和优化的软件设计,对传感器输出的电压信号进行数模转换,应用并且实现了重载机器人关节臂复合驱动中伺服电机扭矩的测量、转换输出以及实时监测.

固定在教室墙上的普通黑板，高度不可调整，需人工擦净，且粉尘飞扬，危害师生身心健康。针对以上问题，设计丝杠控制高度的黑板，使其可以上下移动；设计了二自由度的电动黑板擦除机构，可完成黑板自清洁功能；设计了封闭的粉笔迹擦除空间，可避免教室内粉尘飞扬。整体结构简单，运行平稳，可减轻老师劳动强度，减轻粉尘的污染和危害。

A kind of compound servo drive system is designed using the characteristics of hydraulic motor large torque and servo motor high accuracy positioning. Proportional pressure valve, proportional flow valve and electromagnetic directional valve was used to control hydraulic motor for tracking servo motor drive control and to achieve servo motor control for weight load of large torque and high accuracy positioning. Pressure, speed control strategy of using PID control is proposed based on the above hydraulic tracking drive system, achieve precise control for trajectory of robot articulated arm under heavy load conditions. And according to the requirements of the pressure, flow rate and reversing in the process of compound servo drive, a torque, speed and direction of the switching control strategy is put forward. Mathematical model is established and simulated based on tracking control system. The experiments indicate: under heavy load conditions, response speed, torque and angle control accuracy of hydraulic hybrid drive system meet the requirements with this control method and torque, speed switching control strategy.

党的十七大提出“提高自主创新能力，建设创新型国家”和“促进以创业带动就业”的发展战略。大学生是最具创新、创业潜力的群体之一，因此在高等学校开展创新创业教育，积极鼓励高校学生自主创业，是教育系统深入学习实践科学发展观，服务于创新型国家建设的重大战略举措；是深化高等教育教学改革，培养学生创新精神和实践能力的重要途径；是落实以创业带动就业，促进高校毕业生充分就业的重要措施。

设计了一种液压伺服系统,并对此系统进行了AMESim仿真,分析仿真结果,得出该液压系统的性能指标,为伺服液压系统的深入研究做了铺垫.

Sympathetic vibration is one of main harms cause shorten the structure life .Designed structure can be model analysis using Finite element analysis , and the results will effectively estimate vibration specific of structure in order to optimize structure design .The model analysis about principal axis of milling cutter is shown as an example to demonstrate the use of the FEM codes , and the calculating results are given .

结合佳木斯大学机械工程全日制专业学位硕士研究生的培养现状，对校企联合培养、双导师制实施及实践教学基地建设等方面问题进行了探讨。通过高校、企业和学生之间的良性互动深化学生的理论学习，提高实践创新能力，探索出适应经济社会发展的高层次应用型人才培养的新路子。

提出了一种基于PWM控制的电液比例控制系统的设计方案，分析了PWM的控制原理及其数学模型，详细介绍了系统控制电路的设计及在Keil uVision4环境下采用STM32的TIM实现的PWM控制算法。实际应用表明，采用PWM对电液比例阀的流量和压力进行控制具有价格低廉、可控性强、重复性好等优点。

介绍了HZY-18新型环保全自动液压制砖机的结构组成、工作原理和性能指标;介绍了该机产品尾矿砂混凝土多孔砖的主要性能指标和特点,通过分析可以看出该产品与传统红砖比较的优势和市场潜力.

In this paper,according to the course of electricity specialties have strong theories,experiment and practice have more features,it presented that we should base on the virtual instrument technology in experiment and practice teaching." Signal and System " course is an example of the application of virtual instrument in teaching.The virtual experimental technology has been used in teaching from theoretical research to practical applications.It has entered a new stage.

A new style of heavy compound servo drive system is simulated.A mathematical model is set up for the system.Based on the MATLAB software Platform,numerical simulation and PID optimization are carried out.The simulation shows that the system with servo drive can realize the fast provided the high precision.