scholarly journals Research on the model of Human-Robot football professional skills competition

2018 ◽  
Vol 246 ◽  
pp. 03019
Author(s):  
Yong Ding ◽  
Jiefang Liu
Keyword(s):  
Mathematical Model ◽  
Humanoid Robot ◽  
Rotation Angle ◽  
Research Direction ◽  
Linear Motion ◽  
Professional Skill ◽  
Professional Skills ◽  
Robot Soccer ◽  
Door Frame ◽  
The Mathematical Model

In this paper, the robot (humanoid robot) soccer activity is decomposed according to the process of Human-Robot football professional skill competition. This paper analyzes the shooting problem of robot in the forward range and outside the range of the door frame, applies it to the rotation angle of robot foot, and gives the mathematical model of linear motion through the force of the center of the ball. Then, the further research direction are discussed.

Analysis of Polar Positioning System in Laser Device for Glass Engraving

2009 ◽  
Vol 147-149 ◽  
pp. 107-112 ◽  
Author(s):  
Roman Trochimczuk ◽  
Marek Gawrysiak
Keyword(s):  
Mathematical Model ◽  
Rotation Angle ◽  
Positioning System ◽  
Laser Device ◽  
Output Data ◽  
Cartesian Coordinates ◽  
Object Structure ◽  
Mechanical Parts ◽  
The Mathematical Model ◽  
Discretization Process

In the work the new concept of polar positioning system, alternative for Cartesian one, is presented. The mathematical model which allows calculation of the rotation angle of polar positioning system is considered. The Cartesian coordinates of formed points of object structure, received after discretization process of object are the inputs data to calculation. Output data however are rotation angles i.e. both working arm and rotation table angles. The influence of the stiffness of mechanical parts on the precision of instrument positioning and productivity of the presented polar device is defined.

Modeling and Simulation of Educational Linear Motion Module

2009 ◽  
Author(s):  
Dian-sheng Chen ◽  
Yu-xin Chen ◽  
Tian-miao Wang
Keyword(s):  
Mathematical Model ◽  
Dynamic Performance ◽  
Linear Motion ◽  
Motion Model ◽  
Load Case ◽  
Know How ◽  
Working Principle ◽  
And Control ◽  
The Mathematical Model ◽  
Control Accuracy

In order to let the student understand the linear motion module’ principles and know how to improve the dynamic performance and control accuracy, a mathematical model is established based on the analysis of the composition and working principle of linear motion module. On the load and unload conditions, we simulate and analyze the system respectively. In the load case, PID parameters are obtained after the PID regulation. The correction of establishing the mathematical model and simulating the system are verified so that the linear motion model’ precision is effectively enhanced.

scholarly journals The impact of speed as well as selected parameters of slot insulation on the distribution of temperature in linear motion converters

2016 ◽  
Vol 65 (4) ◽  
pp. 855-864 ◽  
Author(s):  
Jacek Mikołajewicz
Keyword(s):  
Mathematical Model ◽  
Temperature Distribution ◽  
Linear Motion ◽  
Thermal Phenomena ◽  
Heating Up ◽  
The Impact ◽  
The Mathematical Model

Abstract This paper presents and discusses the mathematical model of thermal phenomena occurring in axis-symmetric electromechanical linear motion converters. On the basis of the developed model, software to analyze the process of the heating up of this type of converters, was created. The effect of the thickness and type of material of the slot insulation, as well as the speed of the runner on the temperature distribution in the analyzed object was examined in-depth. Selected results of simulated calculations have been presented.

Design a New Worm-Type Mechanism of Mobile Robot Applicable in Colonoscopy

2015 ◽  
Vol 799-800 ◽  
pp. 1011-1015
Author(s):  
Jae Hyun Park ◽  
In Ho Kim ◽  
Woong Hee Cho ◽  
Jung Wan Park ◽  
Hyun Seok Yang
Keyword(s):  
Mathematical Model ◽  
Mobile Robot ◽  
Mechanical Design ◽  
Human Colon ◽  
Experimental Result ◽  
Linear Motion ◽  
Wide Diameter ◽  
The Mathematical Model ◽  
Varying Environment ◽  
Diameter Change

This paper presents a new mechanical design of mobile robot which can travel in the condition of continuous varying environment, such as colon of human body. Especially, the human colon environment contains an intense diameter change. The suggested mechanical design is capable to adapt in wide diameter changing system by generating two basic motions, rotational and linear motion, with a single actuator. Prototypes is fabricated, and tested result is presented in this paper. Also, experimental result is compared with the mathematical model of the mechanism to verify the feasibility of the proposed mechanism.

Mathematical Modeling and Modifying of Turntable’s Angle for 5/12 Automatic Numerical Controlling Bending Hoop Machine

2011 ◽  
Vol 189-193 ◽  
pp. 1955-1959
Author(s):  
Xiao Hong Zhang ◽  
Guo Fu Yin
Keyword(s):  
Mathematical Model ◽  
Rotation Angle ◽  
Bending Moment ◽  
Numerical Control ◽  
Bending Test ◽  
Spring Back ◽  
Plastic Bending ◽  
Elastic Plastic ◽  
The Mathematical Model ◽  
Nc Bending

Aiming at 5/12 full-automatic numerical control (NC) bending hoop machine, the paper analyzed the elastic-plastic bending deformation with the knowledge of elastic-plastic bending principle, theoretically mechanics and spring-back, and deduced the relationship of bending moment and curvature ratio, and built the mathematical model between bending hoop turntable’s rotation angle and stirrups angle considering the spring-back deformation. Then the different spring-back angles under two types of stirrups diameter, Φ=8 mm and Φ=10 mm, are measured. The mathematical model of turntable’s rotation angle and stirrup’s angle for 5/12 automatic NC bending hoop machine is modified according to the analysis of bending test data.

Control of Magnetic Suspension Linear Feed System

2012 ◽  
Vol 616-618 ◽  
pp. 1918-1921
Author(s):  
De Jun Liu ◽  
Hui Da Duan ◽  
Zhen Xiong Zhou
Keyword(s):  
Mathematical Model ◽  
Strong Coupling ◽  
Disturbance Rejection ◽  
Suspension System ◽  
Magnetic Suspension ◽  
Linear Motion ◽  
Coupling System ◽  
Suspension Control ◽  
The Mathematical Model ◽  
Feed Device

A magnetic suspension linear feed device has been introduced in this paper, it is consist of linear motion and suspension parts. The mathematical model of suspension system is modeled. Aiming at the suspension part which is an nonlinear and strong coupling system, the auto-disturbance rejection controller (ADRC) is used. The inner disturbance and outside disturbance is observed and compensated, the result of simulation indicates the suspension control A magnetic suspension linear feed device has been introduced in this paper, it is consist of linear motion and suspension parts. The mathematical model of suspension system is modeled. Aiming at the suspension part which is an nonlinear and strong coupling system, the auto-disturbance rejection controller (ADRC) is used. The inner disturbance and outside disturbance is observed and compensated, the result of simulation indicates the suspension control has better dynamic, static and robust characters by using the auto-disturbance rejection controller.

Study of a Four Rotor Aircraft Modeling

2014 ◽  
Vol 494-495 ◽  
pp. 293-296
Author(s):  
Yang Jin Xian ◽  
Li Zhi Peng ◽  
Chen Chao
Keyword(s):  
Mathematical Model ◽  
Attitude Control ◽  
Controller Design ◽  
Simplified Model ◽  
Linear Motion ◽  
Motion Model ◽  
Nonlinear Mathematical Model ◽  
Attitude Control System ◽  
Linearization Principle ◽  
The Mathematical Model

In order to design the four rotor aircraft attitude control system, take the hover state or low speed flight state as a benchmark, firstly, divide the aircraft model into linear motion model and the angular motion model and model it separately, the nonlinear mathematical model of aircraft can be obtained. And then use the small disturbance linearization principle to linear mathematical model for a simplified model. After substituting into the previous experimental data, the mathematical model which controller design needs is got.

A Laser Projection Device for Locating Points on the Plane Object

2012 ◽  
Vol 190-191 ◽  
pp. 1094-1098
Author(s):  
He Ding ◽  
Jian Fei Ouyang ◽  
Xiang Ma ◽  
Yong Gang Yan
Keyword(s):  
Mathematical Model ◽  
Image Processing ◽  
Digital Image Processing ◽  
Rotation Angle ◽  
Control Unit ◽  
Stepper Motor ◽  
Two Dimensional ◽  
Laser Pointer ◽  
Projection Device ◽  
The Mathematical Model

Digital image processing technology can extract the main feature of an image. In order to achieve the interaction between virtual points and plane objects, we propose the equipment for indicating points on the plane object using laser projection. We designed the equipment with a bracket, stepper motor, two-dimensional turntable, PC control unit, and a laser pointer. Next, we analyzed the mathematical model of the equipment and developed an algorithm for solving the motor rotation angle. Finally, we verified our design with an image. Here, we develop a system that can control a laser projection to a specified location by adjusting coordinates of virtual points on a computer.

scholarly journals Mathematical modeling of the grain trajectory in the workspace of the sheller with rotating decks

2020 ◽  
Vol 17 ◽  
pp. 00093 ◽  
Author(s):  
Ravil Ibyatov ◽  
Andrey Dmitriev ◽  
Bulat Ziganshin ◽  
Damir Khaliullin ◽  
Alsu Zinnatullina
Keyword(s):  
Mathematical Model ◽  
Rotation Angle ◽  
Angular Rotation ◽  
Disk Rotation ◽  
Working Space ◽  
Cereal Grain ◽  
The Moment ◽  
The Right ◽  
The Impact ◽  
The Mathematical Model

The purpose of the work is to determine the possibility of controlling the operation of cereal grain husks by changing the angular rotation speed of the disk (rotor) and deck to provide optimal conditions for peeling (removal of the flower shell from the grain). For this purpose, the movement of grain in the working space of the husk between the disk and the rotating deck is considered. The mathematical model of grain movement in the working space of the husk, taking into account the real aerodynamics of the rotating air flow, where the efficiency of peeling is determined by the speed and direction of the grain flight, is presented. To study the nature of the influence of structural and regime parameters of the desiccant on the efficiency of work, on the basis of the obtained mathematical model, numerical calculations and graphical dependences are made. On the basis of the analysis of the received graphs it is revealed that the direction of the grain impact on the deck is strongly influenced by the direction of the grain velocity vector at the moment of its tearing from the disk edge and the deck rotation angle speed. At the same time, the right angle impact of the grain can be achieved at low speeds of the deck rotation, and the speed of the grain during the impact is mainly determined by the speed of the disk rotation and practically does not depend on the speed of the deck rotation.

Experimental Validation of a Walking Model for Planar Bipeds With Curved Feet

2011 ◽  
Author(s):  
Anne E. Martin ◽  
James P. Schmiedeler
Keyword(s):  
Mathematical Model ◽  
Humanoid Robot ◽  
Experimental Validation ◽  
Equations Of Motion ◽  
Experimental Results ◽  
Bipedal Walking ◽  
Human Gait ◽  
Bipedal Robots ◽  
Simplifying Assumptions ◽  
The Mathematical Model

Bipeds with curved feet typically require less energy for walking than do point- or flat-footed bipeds, and they tend to mimic human gait more closely. Thus, understanding the effects of curved feet on bipedal walking gaits has the potential to improve both humanoid robot efficiency and human rehabilitation. This paper derives the equations of motion for planar bipeds with curved feet under the assumption, among others, of instantaneous transfer of support between the legs. The paper then verifies the mathematical model by comparing the results of simulation to previous experimental results for two very different bipedal robots — McGeer’s two-link, passive dynamic walker traversing a decline and the five-link, actuated biped ERNIE walking on a treadmill with a supporting boom. In both cases, the results from simulation match the experimental results very well despite the simplifying assumptions, indicating that the mathematical model captures the dominate dynamics of bipedal robots with curved feet.

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