scholarly journals Mechanical Vibration Mechanism Motion Simulation of Ultrasonic Composite Vibration Polishing Equipment

2018 ◽  
Vol 237 ◽  
pp. 01014
Author(s):  
Wan Hongqiang ◽  
Han Peiying ◽  
Ge Shuai ◽  
Fancong Li ◽  
Zhang Simiao
Keyword(s):  
Theoretical Analysis ◽  
Theoretical Basis ◽  
Mechanical Vibration ◽  
Motion Simulation ◽  
Connecting Rod ◽  
Adams Software ◽  
Piston Mechanism ◽  
Working Principle ◽  
Vibration Mechanism ◽  
Ansys Workbench

In order to design a kind of mechanical vibration part with stable motion in ultrasonic composite vibration polishing equipment. firstly, the main working principle of ultrasonic composite vibration polishing equipment is briefly introduced. Secondly, the mechanical vibration structure of the design is analyzed theoretically, again, using ADAMS software to simulate the crankshaft connecting rod piston mechanism. When the crankshaft speed is 750r/min, the stroke of the piston is 90mm, which is similar to the theoretical analysis value. Finally, using ANSYS Workbench software to analyze the crankshaft statics. The analysis shows that the design of the mechanical vibration structure is reasonable, which provides a theoretical basis for the study of the mechanical vibration structure of ultrasonic composite vibration polishing equipment.

Design of Walking Mechanism for All-Terrain Mobile Platform

2015 ◽  
Vol 798 ◽  
pp. 64-69
Author(s):  
Fa Liang Zhou ◽  
Xiao Jun Xu ◽  
Cun Yun Pan ◽  
Hai Jun Xu
Keyword(s):  
Theoretical Analysis ◽  
Theoretical Basis ◽  
Parametric Design ◽  
Human Mobility ◽  
The Self ◽  
Mobile Platform ◽  
Parameter Design ◽  
Working Principle ◽  
Walking Mechanism ◽  
Structure Environment

The new all-terrain mobile platform can improve the human mobility in non-structure environment, which is mainly determined by the walking mechanism quality. In this paper, the walking mechanism structure is designed, and its working principle is analyzed. Theoretical analysis and parameter optimization are completed during the parameter design of the tracked circle, which verifies the parameter rationality of the self-tension mechanism. Besides, the dynamic analysis of the multi-degree of freedom suspension system is accomplished. The results show that the structure and parameter design of the walking mechanism is available, which provides theoretical basis for the new mobile platform parametric design.

Research on Driving Mechanism and Movement Principle of Underwater Glider

2012 ◽  
Vol 433-440 ◽  
pp. 6825-6831
Author(s):  
Dong Hai Su ◽  
Yu Zhang ◽  
Ying Shi ◽  
Kuo Yang
Keyword(s):  
Theoretical Analysis ◽  
Theoretical Basis ◽  
Control Method ◽  
Movement Control ◽  
Organization Structure ◽  
Driving Mechanism ◽  
Underwater Glider ◽  
Underwater Gliders ◽  
Working Principle ◽  
Steady Rotation

In this paper, firstly, the organization structure and working principle of gliders are introduced. Secondly, the buoyancy driven principle of gliders as well as the composition of buoyancy drive system is given. Thirdly, the stationary movement state is analyzed and the law of motion about the steady gliding as well as steady spiral rotation in vertical space are given and the principles, control method of vertical steady glide as well as spiral steady rotation in space are also given, which provides an important theoretical basis with the movement control of underwater gliders. Finally, the vehicle’s underwater experiment was completed. The results of experiment proved that the theoretical analysis is correct and also verified that the design of vehicle is rational, which could meet the requirement of control.

Research and Development of CA6140 Virtual Assembly System

2014 ◽  
Vol 621 ◽  
pp. 558-563
Author(s):  
X.M. Li ◽  
Ya Lin Shen ◽  
L.H. Zhu
Keyword(s):  
Employee Training ◽  
Virtual Assembly ◽  
3D Models ◽  
Assembly System ◽  
Motion Simulation ◽  
Virtual Technology ◽  
Working Principle ◽  
Programming Software ◽  
Indispensable Tool ◽  
Visual Basic 6.0

On the basis of analyzing assembly process of main structural components in CA6140 lathe, 3D models for those components were established with CAD software UGNX6.0. Virtual assembly and motion simulation of the structure parts were performed with virtual technology. A set of virtual assembly system of CA6140 engine lathe was developed with programming software Visual Basic 6.0. It contains six main modules about spindle box, feed box, apron, tailstock, turret, etc. Dynamic simulation and motion simulation of the corresponding components in entity lathe can be realized, respectively. And also, mechanical structure, working principle, assembly relation between different components and motion transmission process of the lathe can be realistically reproduced with the system. This virtual assembly system not only can be used to analyze and transform old products, but also can be used in new products development, and to some extent, can be used to replace the prototype. It is an indispensable tool in the employee training and mechanical engineering activities.

Motion Simulation of Key Components in a Package Machine

2012 ◽  
Vol 557-559 ◽  
pp. 2303-2306
Author(s):  
Shu Bin Kan
Keyword(s):  
Structural Parameters ◽  
Center Of Mass ◽  
Motion Simulation ◽  
Software Environment ◽  
Optimization Result ◽  
Adams Software ◽  
Motion Characteristic ◽  
The Moment ◽  
Selection Of

The motion characteristic of key components is a decisional factor to the working reliability and stability of a package machine. In this paper, the motion simulation of a key component is carried out in the ADAMS software environment. By analysis of the force, variance of the center-of-mass and the moment of the component, the mutation point in the motion is found, and then the structure is optimized by selection of different structural parameters. The optimization result shows a significant improvement for the reliability and stability of the whole machine.

Theoretical basis of research of personal mediation of manipuiative tendencies

2021 ◽  
Vol 2021 (2) ◽  
pp. 25-34
Author(s):  
Yu. V. Borets ◽  
◽  
O. V. Palahniuk ◽  
Keyword(s):  
Theoretical Analysis ◽  
Key Words ◽  
Theoretical Basis ◽  
Scientific Literature ◽  
Use Of Force ◽  
Training Process ◽  
The Will ◽  
The Subject ◽  
The Right ◽  
Practical Implications

The purpose of the article. Theoretical analysis of personal mediation of manipuiative tendencies. Methodology. The basis of this study is a theoretical analysis, synthesis, generalization, systematization of available scientific literature on the subject. Results. Manipulation of consciousness is one of the ways to dominate and suppress the will of people by acting on them through the programming of their behavior. This action is aimed at the mental structures of man, which is carried out secretly and aims to change the thoughts, motivations and goals of people in the right direction for a certain group of people. In this case, the purpose of manipulation – hiding their true intentions, to encourage another person to take certain actions, change values, ideas and opinions, etc., while maintaining the illusion of independence in general and independence of decisions or actions. In other words, to motivate a person to what he does not want to do, to distract from what he aspires to, but at the same time to create in him the confidence that he is acting of his own free will. Practical implications. The need to study manipulative tendencies is to determine the main ways and methods of manipulation and ways to protect against manipulative action. To reveal the main features of the manipulator’s personality and the category of people who are most prone to manipulative action. Theoretical materials can be used in the training process of the courses “Psychology of personality”, “Age Psychology”, “Differential Psychology”, “Fundamentals psychological correction”. Originality/value. It was found that the criteria for manipulation are: the attitude of the manipulator to the objects of manipulation as a means to achieve their own goal, the desire to gain unilateral advantage, the hidden nature of influence, use of force, motivation, motivation and skill in the process of manipulative influence. Key words: manipulation, coercion, manipulation, subject of manipulation, projection, Machiavellianism, manipulative influence.

Dynamics Analysis of A Planetary Mechanism Soft Starter

2011 ◽  
Vol 86 ◽  
pp. 247-251
Author(s):  
Xue Jiang ◽  
Ji Hua Bao ◽  
Yuan Zhang ◽  
Yan Yu
Keyword(s):  
System Dynamics ◽  
Theoretical Basis ◽  
Constant Load ◽  
Disc Brake ◽  
Dynamics Analysis ◽  
Brake Torque ◽  
Uniform Acceleration ◽  
Soft Starter ◽  
Working Principle ◽  
Planetary Mechanism

For studying controlling tragedy of soft starter with disc brake, its working principle was analyzed, and system dynamics equation was established. Besides, the brake torque provided by the disc brake was counted. The analysis indicates that, for the constant load starting in uniform acceleration, the brake oil-pressure must keep invariable. The conclusions provide theoretical basis for the hydraulic and electrical controlling of soft starter.

Design and Tests of Audio Directional System

2012 ◽  
Vol 198-199 ◽  
pp. 1047-1052
Author(s):  
Yang Zhang ◽  
Li Min Tao
Keyword(s):  
Theoretical Analysis ◽  
Light Beam ◽  
Test Data ◽  
Harmonic Distortion ◽  
Experimental System ◽  
The Self ◽  
Far Field ◽  
Sound Beam ◽  
System Components ◽  
Working Principle

Audio directional system is a new-style loudspeaker, which can project the sound beam onto a given region as light beam. In this paper, the basic working principle and the system components of audio directional system are proposed. The total harmonic distortion of the self-demodulated signal is analyzed based on “Berktay far-field solution”. Besides, this paper has designed the audio directional experimental system whose performances have been tested. The shortcomings of the self-demodulation theory are pointed out after the comparison between the test data and the theoretical analysis results.

The Design of Yield Monitor Device of Tomato Harvester

2014 ◽  
Vol 602-605 ◽  
pp. 1782-1786
Author(s):  
Ming Chang Chen ◽  
Hong Wen Zhang
Keyword(s):  
Real Time ◽  
Theoretical Basis ◽  
Structural Characteristics ◽  
Three Dimensional ◽  
Working Environment ◽  
Yield Monitor ◽  
Technical Requirements ◽  
Working Principle ◽  
Monitor Device ◽  
Yield Monitoring

To solve the problem that yield monitoring cannot be done in real time during tomato harvesting in existing technology, a real-time yield monitor device on tomato harvester is designed by an three-dimensional software which is named Solidworks. This article describes the all structural characteristics and working principle of the device. Weighing belt, rollers and three kinds of sensors of the device are mainly designed and selected based on the working environment and technical requirements. The design of yield monitor device promotes popularization of the technology of tomato harvesting yield monitor on tomato harvesting machinery, makes the process of yield monitor in real time during tomato harvest realize automated, intelligently and informationized and provides a theoretical basis for the further study of tomato harvester monitoring technology.

Characteristic Research on Wireless Power Transfer Based on Magnetic Coupling Resonant

2014 ◽  
Vol 687-691 ◽  
pp. 3379-3382
Author(s):  
Shui Xiang Cui ◽  
Zhi Juan Zhang ◽  
Xue Mei Liang
Keyword(s):  
Theoretical Analysis ◽  
Power Transmission ◽  
Magnetic Coupling ◽  
Load Resistance ◽  
Transmission Efficiency ◽  
Wireless Power ◽  
Load Power ◽  
Transmission Distance ◽  
Working Principle ◽  
Coil Size

This paper analyses the working principle of magnetic coupling resonant wireless power transmission system based on mutual inductance coil model, and then gets the expressions of load power and transmission efficiency. By the theoretical analysis the relations between the various system parameters such as: coil size, transmission distance, load resistance, the resonant frequency and load power, transmission efficiency are obtained. According to the results of theoretical analysis, the system’s characteristics of load power and transmission efficiency with varying transmission distance are studied. Finally, simulations verify the accuracy of analysis by Matlab/Simulink.

Some Early Experiences of Mechanical Vibration in Marine Engine Systems

1970 ◽  
Vol 185 (1) ◽  
pp. 1023-1089 ◽  
Author(s):  
W. Ker Wilson
Keyword(s):  
Torsional Vibration ◽  
Mechanical Vibration ◽  
Viscous Friction ◽  
Vibration Absorbers ◽  
Connecting Rod ◽  
Helical Springs ◽  
Reciprocating Engine ◽  
Twin Screw ◽  
Mass Balancing ◽  
Vibration Tests

Everything which is struck rings; everything has a particular ring.—Pythagoras of Samos (582-507 B.C.) The lecture is divided into the following sections. Introduction. Early days. Camshaft drives. Camshaft drive at free end and after end of crankshaft; later developments. Mass balancing of internal-combusion engines. Single-piston assemblies; unbalanced centrifugal and inertia forces. Mass balancing opposed-piston engines. Ship vibration; scavenge-crank balance weights; scavenge-pump reciprocating parts; crankshaft-coupling-bolt failures; change of firing order; results and conclusions from vibration tests. Differential-stroke (mass-balanced) opposed-piston engines; first fully balanced opposed-piston engines; lever-driven scavenge pumps. Transverse (rolling) vibration of engine frame. Experimental determination of the natural frequency of transverse (rolling) vibration of opposed-piston engines; transverse vibration of engine frame in twin-screw ships and its control. Torsional vibration. Investigation of side-connecting-rod failures; investigation of torsional vibration; retiming the crankshaft system; general; marine steam reciprocating engine. Devices for controlling torsional vibration. Tuned and damped vibration absorbers; dynamic vibration absorbers in opposed-piston-engine propulsion systems; Bibby peripheral grid springs; vibration absorbers at free ends of crankshafts; experimental absorber with peripheral helical springs; Doxford-Bibby absorber. Later history. Large six-cylinder opposed-piston engines; alternative viscous-friction dampers; modified vibration absorber; stiffer crankshafts; P-type engines; J-type engines.

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