Automatic parking trajectory planning in narrow spaces based on Hybrid A* and NMPC by Pei Zhang, SiLong Zhou, Jie Hu, WenLong Zhao, Jiachen Zheng, Zhiling Zhang, Chongzhi Gao

“…This study initially employs a hybrid A* algorithm to generate a preliminary path, then fits the velocity and acceleration based on a cubic polynomial. The kinematic constraints of the vehicle and obstacle avoidance constraints are then meticulously defined, and a coupled nonlinear model predictive control (NMPC) method is employed to optimize the trajectory. …”
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Study on the Structural Design and Obstacle Barrier Performance of Double Pendulum Arms Crawler Deformable Robot by Guangyao Meng, Zhenhua Wang, Juxin Huang, Bin Guo, Hongjie Sun

“…The gait planning and motion mechanism analysis of robot overcoming obstacles are established. The kinematics and dynamics models of robot obstacles are established, and the critical conditions for robots to overcome various obstacles are analyzed. …”
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On the Frequency Distribution of Neutral Particles from Low-Energy Strong Interactions by Federico Colecchia, Akram Khan

“…While conventional techniques in the field usually concentrate on probability distributions, our study is, to our knowledge, the first attempt at estimating the frequency distribution of background particles across the kinematic space inside individual collision events. …”
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Random Target Localization for an Upper Limb Prosthesis by Xinglei Zhang, Binghui Fan, Chuanjiang Wang, Xiaolin Cheng, Hongguang Feng, Zhaohui Tian

“…Finally, the proposed algorithm is applied to the 5-DOF upper limb prosthesis, and the simulations and experiments are proved to demonstrate the validity of the proposed localization algorithm and inverse kinematics (IK) algorithm.…”
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Joint Simulation of a Marine High Power Hydraulic Control Clutch Transmission System by Wang Xuezhi, Yan Ze, Feng Liju, Chen Kexin, Wang Yongfan, Zhan Qingxin, Li Chao, Qu Dongyue

“…In this study, the joint simulation flow of Adams and AMESim on the kinematics and contact dynamics of the marine high-power hydraulic drive gear clutch is studied, and the joint simulation interactive operation interface is developed. …”
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Suboptimal Midcourse Guidance with Terminal-Angle Constraint for Hypersonic Target Interception by Shizheng Wan, Xiaofei Chang, Quancheng Li, Jie Yan

“…The requirements of midcourse guidance for interceptors are provided additionally. The kinematics model of adversaries is established concerning line-of-sight coupling in longitudinal and lateral planes. …”
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Research of the Method of Parameter Identification and Error Compensation of Industrial Robot by Qi Fei, Ping Xueliang, Liu Jie, Jiang Yi

“…Aiming at the lower absolute positioning accuracy of robot,the compensation method of establishing the robot kinematics error model through D- H method is put forward. …”
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Performance Analysis and Optimization of a 6-DOF Robotic Crusher by Guoguang Li, Boqiang Shi, Ruiyue Liu, Jie Gu

“…Then, based on the Jacobian matrix, the equation of condition number is constructed which provides a criterion for evaluating kinematic accuracy. Finally, the workspace and singularity of the 6-DOF robotic crusher are analyzed to verify the rationality of the optimized variables. …”
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Light-cone actions and correlators of self-dual theories in AdS4 by Chandramouli Chowdhury, George Doran, Arthur Lipstein, Ricardo Monteiro, Silvia Nagy, Kajal Singh

“…Abstract Self-dual Yang-Mills and Einstein gravity in Euclidean AdS4 are useful toy models because they can be described by simple scalar Lagrangians exhibiting a new manifestation of the colour/kinematics duality, as recently shown by two of the authors. …”
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Trajectory Synthesis of Aircraft Cabin Door Lifting Mechanism Based on the Homotopy Continuation Method by Peng Jiyou, Hang Lubin, Liu Anxin, Wu Borui, Huang Xiaobo, Wu Yang

“…Based on the ordered single open chain method, the trajectory synthesis kinematic equations of two single open chain units of the lifting mechanism are established; the variables of the equations are grouped into homogeneous groups and the Bezout number is only 320, which reduce the homotopy tracking path; by constructing the initial equations and solving the homotopy equations, six sets of non-negative real number configuration solutions of rod length are obtained, and the corresponding configuration of single open chain element combination is drawn. …”
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Automatic 4-mirrors system for alignment of high-power laser radiation by V.V. Toporovsky, A.G. Alexandrov, I.V. Galaktionov, A.L. Rukosuev, A.V. Kudryashov

“…This paper presents the automated system for minimizing the deviation of the path of passage and the divergence of a secondary radiation source with parameters similar to ones of the main beam of a high-power Ti:Sa laser using mirrors in kinematic mounts on the motorized stages. As an alignment laser, the diode laser with a fiber output was used with radiation characteristics coinciding with the parameters of the main beam (wavelength, beam diameter). …”
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A Normative Modeling Method for Complex Gear Coupled Rotor-bearing System Dynamics by Xia Boqian, Jiang Xi, Zhang Zebin

“…Based on the basic principle of gear meshing, this study establishes the geometric coupling model (or called kinematic coupling model) of the spur gear pair, helical gear pair, spur bevel gear pair and spiral bevel gear pair; and by using the transformation matrix of the coupling model, a unified, convenient and normative modeling method for the dynamic study of arbitrary complex gear-rotor-bearing coupled system including the above four kinds of gear pairs is given, which provides convenience for the dynamic study of complex gear shafting.…”
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United Dynamics Simulation of Driving Axle Under Typical Working Condition by Mingrui Yin, Xuewei Li, Chen Jing, Zenghua Fan

“…Reliable basis for the further research on kinematics and dynamics characteristics of driving axle main reducer and differential transmission gear is provided and technical support to reduce the vibration of the drive axle main reducer and differential transmission and optimize its performance characteristic is provided.…”
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Predictions for the Isolated Prompt Photon Production at the LHC at s = 13 TeV by Muhammad Goharipour, Hossein Mehraban

“…The calculations are presented as a function of both photon transverse energy ETγ and pseudorapidity ηγ for the ATLAS kinematic coverage. We also study in detail the theoretical uncertainty in the cross sections due to the variation of the renormalization, factorization, and fragmentation scales. …”
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Comparative Estimation of Maneuverability of the Multi-Track Road Trains of Different Layout Schemes by Volodymyr Sakhno, Igor Murovanyi, Oleksandr Razboinikov, Olekcii Palamarchyk, Valerii Dembitskyi

“…Previously conducted studies established that the maneuverability indicators of the road trains can be determined on wheels rigid in the lateral direction, that is, according to kinematic models, which are based on the angles of assembly of the road train links. …”
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Effects of X-ray and electron beam irradiation on wine quality: Emphasizing phenolic compounds and aroma profiles by Weikang Ding, Qian Tu, Xuexue Xi, Xiaojie Wu, Junqing Bai, Shuang Liu, Junjun Li, Chunlong Yuan

“…This study used X-rays (ionizing radiation) and electron beams (particle radiation) at 0.5, 2, and 7 kGy for grape pre-treatment before winemaking. Scanning electron microscopy showed varying degrees of grape skin damage. …”
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The pattern of brittle deformation in Central America for an assessment of the seismo-tectonic framework by Mauro Agate, Francesco Caldareri, Luis Castillo, Amalia Garcia, Giuseppe Giunta, Luis Mixco, Jaime Requena, Carlos Rubi Tellez, Maynor Ruiz, Attilio Sulli, Abel Alexei Argueta-Platero, Heyddy Calderon, Julio Luna, Lidia Elizabeth Torres Bernhard

“…This map is presented alongside an informative dataset wherein fault trace locations, geometry and kinematics descriptors and other available metadata have been stored. …”
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Trajectory Planning of Manipulators Based on Artificial Immune-improved Particle Swarm Optimization Algorithm by Guo Xin, Li Lijun

“…Based on the path constraints and operational requirements of industrial robots, three kinematic indicators of time, energy consumption, and jump are selected as the objective optimization functions, and artificial immune bimodal particle swarm is used for trajectory optimization. …”
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Analysis of Stiffness Characteristic of Five-degree-of-freedom Hammer Riveting Robot based on Spiral Theory by Chunying Jiang, Xiangchen Liu, Changlong Ye, Huan Zhou, Xu Guan

“…In view of the characteristics of the 5-DOF hammer riveting robot， combining Lie group Lie algebra and spiral theory， its kinematics model is established and solved； use the exponential product formula to derive the Jacobian matrix of the robot，and use the stiffness mapping theory to solve the stiffness matrix of the robot； the finite element and Matlab simulation software are used to simulate and verify the end deformation under the general pose and the extreme pose，and the stiffness distribution map of the robot in the task space varying with the change of pose is given；the simulation result is compared with the theoretical calculation value and the error is not more than 10%，which verify the correctness and effectiveness of the established stiffness model and provide important reference for optimization of subsequent work path.…”
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Analysis of Kinetic Positional Solution and Workspace of Pure Translational 3-UPU Parallel Mechanism based on Matlab by Zhiqiang Zhu, Yanhong Xiong

“…This method provides feasible and practical reference significance to solve and analyze the kinematics problem of multiple degrees of freedom parallel mechanism.…”
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