Applied Mechanics and Materials Vols. 701-702

Abstract: The roadheader remote control system is proposed to protect operator away from the dust and the danger on working site, improve the operator's labor environment, reduce personal injury accidents, and enhance the security of mining operations. The cutting head and spade board position of transverse boom-type roadheader were analyzed. The mathematical models of cutting head vertical swing, cutting head gyration swing and spade board vertical swing were established. Geometric relationship between the angle and the stroke of hydraulic cylinder of cutting head and spade board were calculated. Finally, based on programmable logic controller (PLC) and industrial personal computer (IPC), the remote control system was designed and the automatic cutting method was proposed. The roadheader remote control system had been applied successfully in EBH132 roadheader. The system significantly enhances the efficiency and security of the main production.

Abstract: A new design of automated guided vehicles control system is presented, which applies wireless sensor network (WSN) communication technology to make vehicles work as mobile robots with distributed sensing ability, meanwhile uses swarm intelligence algorithms to coordinate the vehicles. Compared to the traditonal system, this system is more flexible because that it is an infrastructure-free system with WSN to assist locating and navigating, and it is suitable for the dynamic industrial applications with self-organization network communication and swarm intelligence control.

Abstract: With wheeled amphibious robot as the research object, for the adaptability of amphibious robot to amphibious environment such as sandy, muddy, or rocky land, we have proposed a new wheel-paddle integrated propeller based on moving webbed paddle wheels. This propeller made the robot functional well in the water and on land, and made it a good adaptability to amphibious environment. Considering the specific situations of the amphibious robot, the design process was proposed to design this integrated wheel-paddle integrated propeller. The angles of the paddles in water were analyzed for stability through simulations. Finally, a wheel-paddle integrated propeller based on moving webbed paddle wheels was made according to virtual model. To test the prototype propeller’s performance on speed, turning and switching ability both on land and in water, several experiments were carried out. Results showed that the prototype propeller achieved the desired design specifications.

Abstract: Aiming at the current energy efficiency of washing machine is not high. The smart inverter washing machine based on fuzzy control technology is designed. Drum washing machine including a content body structure design, programmable controller and the overall program and frequency control module is highlighted. And the generation and fuzzy reasoning process SPWM signals and other issues are discussed in detail. The results show that the use of fuzzy control technology frequency control can not only save water and energy, but also meet the modern requirements of a variety of special laundry, in line with the development trend of the washing machine technology.

Abstract: This paper introduces the implementation of intelligent motion control and planning for autonomous underwater vehicle (AUV). Previously developed control system features intelligent motion control and planning subsystem, based on artificial neural networks. It allows detecting and avoiding moving obstacles in front of the AUV. The motion control subsystem uses position-trajectory control method to position AUV, move from point to point and along given path with given speed. Control system was tested in the multi-module simulation complex. Simulation showed good results – AUV successfully achieved given goals avoiding collisions not only with static obstacles, but also with mobile ones. That allows using the proposed control system for the groups of vehicles. Besides simulation, control system was implemented in hardware. AUV prototype passed tests in Azov Sea and proved its efficiency.

Abstract: In order to solve the deficiency of existing rehabilitation robot a novel upper limb rehabilitation robot structure is designed. Kinematics model is established by the method of Denavit-Hartenberg. The robot is driven by pneumatic muscle. Simulation on the robot movement is carried out by the simmechanics of matlab. When the joint is driven, the angle、angular velocity and working space of robot are all obtained. Feasibility of the robot design is confirmed by the simulation results.

Abstract: According to the proposed design scheme of the overhead crane, with the use of blocks package SimMechanics Second Generation of MATLAB, a conceptual block diagram of connections was developed, according to which the was created Simulink-model of the mechanical system of the bridge crane with PID regulator. Simulink-model allows us to study the operating modes of the overhead crane on the its design stage.

Abstract: Combined with powerful mathematical capability of MATLAB and the excellent interfacial design function of GUIDE, a lifting optimization decision system for multiple-lifts-single-crane is proposed which is feasible in electrical equipment lifting tasks. Based on existing approaches, a novel algorithm is proposed for selecting appropriate cranes and determining their corresponding optimum locations, resulting a lifting optimization system. This system can minimize the number of crane locations on the premise of avoiding potential spatial conflicts. To investigate its performance, a case example is conducted. It is demonstrated that the utility of this system for multiple-lifts-single-crane lifting tasks which also allow users have a deeper intuitive judgment to the lifting process.

Abstract: Power line inspection especially the super-high voltage four splitting transmission line inspection is of the utmost importance for the reliability and stability of electric power system. Making use of the robot technology to inspect has been a research hotspot in recent years due to its complicated geographical distribution environment. According to the characteristics of the transmission lines and inspection requirements, mechanical structure composition of a new inspection robot with four arms was firstly introduced in this paper. Based on this, the kinematics simulation and movement of the obstacle-navigation process was analyzed by ADAMS. The experiments about obstacle-navigation and climbing ability had also been conducted. Through repeated simulation and experiments, it has been verified that the robot proposed can cross obstacles smoothly, and have the advantages of high efficiency and strong climbing ability, which has great development and application potential.

Abstract: This paper mainly discusses the dynamic distribution of regenerative braking system and conventional friction braking system of EV.In order to meet the requirements of vehicle braking stability and recycle the braking energy whenever possible, the paper proposes a control strategy which based on ECE regulation and I curve.Then the proposed control strategy is embedded into the simulation software ADVISOR.The result shows that the control strategy of regenerative braking the paper presented is better than ADVISOR’s own on braking energy recovery, and is especially suitable for frequent braking city conditions.