Optimization Design of Pumping Unit Reversing Mechanism based on Output Swing Angle Analysis by Liu Yongping Li Dawei Dong Changbin

“…Analysis results show that， compared with the original elliptical gear planetary gear train reversing mechanism, the swing angle of the output is increased, so that the stroke of the pumping unit can be increased.…”
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Application and Kinematics Analysis of Noncircular Gear Swinging Guide Bar mechanism by Cai Jun

“…In order to satisfy the specific engineering application requirements of swinging guide bar mechanism,the swing guide bar mechanism can be driven by motor output one-way variable motion under the conditions of each bar length is determined,the output motion characteristic of the swing guide bar mechanism is optimized and the comprehensive performance is improved.Considering the non-circular gear transmission characteristic,by using uniform motor driven non-circular gear for one-way variable motion function,which can also achieve the same movement request.The movement diversity and applicationof the mechanism is verified,at the same time,a reliable research method of the series assembly mechanism,reverse design of non-circular gear and optimization design is provided.…”
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ANALYSIS OF TRANSIENT CLOSING PROCESS AND COLLISION RESPONSE OF SWING CHECK VALVE by ZHANG XiHeng, ZHANG SunLi, BAI YaZhou, ZHANG XiaoKang

“…Through analysis,it was shown that the fluid backflow has a hysteresis,the movement speed of the valve flap shows a parabolic rise,and the dynamic torque presents a process of slowly decreasing to suddenly increasing in the reverse direction when the valve is closing. Vortex phenomenon obvious occurs at the bottom of the valve flap,and there is a time difference in the change of fluid flow direction on the center line of the flow channel; In the process of collision and rebound,the peak stress appeared at the rounded corners of the back of the flap and the rocker rib,and the valve flap swings slightly and collides with the valve seat many times in a short time. …”
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Design and Analysis of the Tooth Profile of Double Generating-wave Swing-rod Movable Tooth Drive by Yi Yali, Shao Cang, Jin Herong, An Zijun

“…To realize the controllable of the motion state of double generating- wave swing- rod movable tooth drive,the reverse design of wave generator tooth profile is carried out by using the complex number vector method based on the given motion law of the swing- rod. …”
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REVERSE REALIZATION OF PITCH CURVE ON CONJUGATE CAM WITH HIGH SPEED BEATING-UP by QIU HaiFei

“…Besides,shape change of the pitch curve is analyzed by combining swing arm angle Φand center distance L. The results of reverse design show that pressure angle α at each point on the curve can meet requirements of mechanical transmission characteristics. …”
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VECTOR BOND GRAPH METHOD FOR UNIFIED MODELING AND SIMULATION OF JAW CRUSHER SYSTEM DYNAMICS by WANG ZhongShuang, ZHOU QianBin, SHI YongZhen

“…Aiming at the problem of unified modeling and simulation of system dynamics of simple swing jaw crusher driven by electric motor, the corresponding vector bond graph method was proposed. …”
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Research on Design and Rehabilitative Action Planning of Pneumatic Driven Exoskeleton Robots for the Shoulder Joint Rehabilitation by Lu Zeyu, Guo Bingjing, Han Jianhai, Li Xiangpan, Li Zhenzhu, Dong Yingming

“…The structure and range of motion of the robot shoulder joint were determined by combining the clinical treatment method of shoulder joint injury rehabilitation training with the principle of ergonomics. A pneumatic swing cylinder drive system was designed to provide reverse driving characteristics of robot joints and improve the passive compliance in the rehabilitation training. …”
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Innovative design and experimental verification of cam shedding for high-speed looms by Haifei Qiu, Ming Chen, Feiyang Li, Yifan Zhang

“…The simulation results of considering yarn tension exhibited highly consistent swing arm and heald frame motion curves with numerical calculations, and the dynamic performance of the shedding system is affected by yarn tension, which leads to an increase in motor torque and acceleration oscillation in the low-frequency domain. …”
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Workspace Analysis of Auxiliary Slag Cleaning Device of TBM based on Monte Carlo Method by Jia Liangfei, Ma Chaofeng, Liu Kai

“…Aiming at the current rock burst problems encountered in hard rock excavation construction，a set of six-degree-of-freedom automatic excavation equipment which can replace the current artificial slag and can work well in a narrow working space is designed.The specific design is on the basis of the traditional excavating machine，two telescopic arm structures and a swing arm structure are added，and each rod length and each joint variable are set by kinematically modeling the mechanical arm.The design overcomes the problem of the small amount of operable space and the protection of the supporting I-beam for the pre-supported tunnel，and expands the working space of the conventional excavation equipment in a narrow space.The overall structure of the excavation equipment and the kinematics modeling process are expounded.By using the characteristics of Monte Carlo method in random number application，the workspace of this device is simulated.At the same time，the joint parameters are reversed and verified.The results are in line with the expected joint operating range.The slag cleaning device can improve the working efficiency of cleaning the gravel caused by rock burst，and can reduce the construction cost of the hard rock tunneling.…”
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Multidimensional library for the improved identification of per- and polyfluoroalkyl substances (PFAS) by Kara M. Joseph, Anna K. Boatman, James N. Dodds, Kaylie I. Kirkwood-Donelson, Jack P. Ryan, Jian Zhang, Paul A. Thiessen, Evan E. Bolton, Alan Valdiviezo, Yelena Sapozhnikova, Ivan Rusyn, Emma L. Schymanski, Erin S. Baker

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