Structural Design and FEA of a New Type of Multi-DOF Spherical Induction Motor without Output Shaft

2019 ◽  
Author(s):  
Hengyu Zhou ◽  
Youtong Fang ◽  
Jien Ma
Keyword(s):  
Induction Motor ◽  
Structural Design ◽  
Output Shaft ◽  
New Type

Kinematic Analysis and Design of Eccentric Rolling Transmission

2017 ◽  
Author(s):  
Stanislaw Pabiszczak ◽  
Adam Myszkowski ◽  
Roman Staniek ◽  
Lukasz Macyszyn
Keyword(s):  
Kinematic Analysis ◽  
Design Procedure ◽  
Gear Ratio ◽  
Output Shaft ◽  
Cad Model ◽  
The Novel ◽  
Rolling Bearings ◽  
Analysis And Design ◽  
Input Shaft ◽  
New Type

The paper shows an idea of a new type of mechanical gear — the eccentric rolling transmission. The main parts of that transmission are rolling bearings, mounted eccentrically on the input shaft which cooperate with the special-shaped cam wheels mounted on the output shaft. The number of rolling bearings is equal to the number of cam wheels. On the basis of kinematic analysis equations of the curve which describe a shape of cam wheels were determined for two different cases: in the first one the directions of shafts rotations were opposite, and in the second they were the same. Kinematic analysis of the novel transmission was carried out to determine maximum gear ratio depending on the adopted input parameters. As a result of analyses a design procedure of the eccentric rolling transmission and CAD model were prepared.

Calculation and Analysis of 2-D Thermal Stress Field in Induction Motor with Compound Cage Rotor under Different Load

2011 ◽  
Vol 117-119 ◽  
pp. 97-100
Author(s):  
Jun Ci Cao ◽  
Rong Chao Qian ◽  
Wei Li Li
Keyword(s):  
Finite Element ◽  
Thermal Stress ◽  
Stress Field ◽  
Induction Motor ◽  
Reference Value ◽  
Single Site ◽  
Compound Material ◽  
Thermal Stress Field ◽  
New Type ◽  
Cage Rotor

3kW two poles induction motor with compound cage rotor is illustrated in this paper, and 2-D thermal stress field of induction motor rotor is calculated and analyzed by finite element. Contrasting with common induction motor, induction motor with compound cage rotor has specific rotor shot shape and the bar is comprised of the upper compound material and the lower cast aluminium, which cause distribution of thermal stress is special. The motor with the rotor shot of compound material laid at single site is chosen to analyzing. The maximum thermal stress in the bar is calculated at different load, and the distribution of thermal stress in the bar is analyzed at rate load. The law of distribution of thermal stress in the bar has same reference value for designing new type of induction motor.

Influence of Carbon Content on Fe-Cu Alloy Material Performance in Induction Motor with Compound Cage Rotor

2011 ◽  
Vol 117-119 ◽  
pp. 1223-1226
Author(s):  
Wei Li Li ◽  
Xiao Chen Liu ◽  
Jun Ci Cao
Keyword(s):  
Carbon Content ◽  
Induction Motor ◽  
Bridge Circuit ◽  
Testing Device ◽  
Cu Alloy ◽  
Alloy Material ◽  
New Type ◽  
And Performance ◽  
Cage Rotor ◽  
Microstructure And Performance

New type Fe-Cu alloy is used in the bar of induction motor with compound cage rotor(IMCCR). In this paper, the preparation of three kinds of Fe-Cu alloy is introduced. The influence of its microstructures, hardness and impact toughness is studied by using metalloscope and scanning electron microscope. Meanwhile, physical propertie such as resistivity, and B-H curve is tested by using magnetic testing device and bridge circuit. The influence of carbon content changing on microstructure and performance of Fe-Cu alloy is analysised, which has positive significance to the new type material using in motor.

Mechanism-Based Evaluation of Thermal Ratcheting due to Traveling Temperature Distribution

2000 ◽  
Vol 122 (2) ◽  
pp. 130-138 ◽  
Author(s):  
Toshihide Igari ◽  
Hiroshi Wada ◽  
Masahiro Ueta
Keyword(s):  
Temperature Distribution ◽  
Structural Design ◽  
Evaluation Method ◽  
Stress Condition ◽  
Membrane Stress ◽  
Primary Stress ◽  
Ratcheting Strain ◽  
Axial Temperature ◽  
Thermal Ratcheting ◽  
New Type

Recently, structural design against a new type of thermal ratcheting under a null-primary-stress condition has been required. The representative case is the thermal ratcheting of a hollow cylinder caused by a traveling temperature distribution. In this paper, the mechanism of this ratcheting is proposed, and the evaluation method of ratcheting strain is shown based on this mechanism. The proposed evaluation method is basically based on the hoop-membrane stress due to the axial temperature distribution, and considers the influence of axial bending stress and traveling distance of temperature distribution. Predicted results by this method correspond to numerical results by FEM and can conservatively estimate the experimental results with several kinds of traveling distance, stress levels, and two types of temperature hold for types 316 and 316FR stainless steels. [S0094-9930(00)01102-1]

Structural Design and Experimental Study of a New Vacuum Vulcanizing Machine

2013 ◽  
Vol 427-429 ◽  
pp. 166-169
Author(s):  
Cai Jun Liu ◽  
Xu Juan Wang ◽  
Xu Wei
Keyword(s):  
Mechanical Properties ◽  
Structural Design ◽  
Production Efficiency ◽  
Physical And Mechanical Properties ◽  
Structure Characteristics ◽  
High Production Efficiency ◽  
New Type ◽  
High Production ◽  
High Degree ◽  
Machine Structure

This paper introduces a new type vacuum vulcanizing machine structure characteristics, the machine can realize the automatic mold, mold release, flip, ejector, has a high degree of automation, high precision products, high production efficiency; and to study the model of vacuumizing plate vulcanizing machine and physical and mechanical properties of ordinary vulcanization machine the influence of the vulcanizate by experiment.

Structural Design of Newly Developed Temporary Footbridge

2013 ◽  
Vol 405-408 ◽  
pp. 1623-1626 ◽  
Author(s):  
Marcela Karmazínová
Keyword(s):  
Structural Design ◽  
Steel Structure ◽  
Static Solution ◽  
Fatigue Tests ◽  
Efficient Design ◽  
Load Carrying ◽  
Structural Details ◽  
New Type ◽  
Loading Tests ◽  
Structural Detailing

The paper deals with the design of steel structure of the temporary footbridge, intended especially for the usage in the construction site for pedestrian and bicycle traffic. In the period of last two years, on the authors workplace, in the co-operation with the mounting company, the new type of steel footbridge is being developed. Within this development the attention is, among others, paid to the structural design, in particular to the harmonization of static solution and structural detailing, to achieve the efficient design. In the course of solving this problem, two types of the footbridge are being developed in parallel. Both footbridges are composed as the structures with a lower deck, truss main girders and bracings; the first structure (short footbridge) with a small self-weight may have the span up to 18 m; the second structure (long footbridge) with a normal self-weight may have the span up to 36 m. The paper is focused on the brief description of structural composition and parameters of the short footbridge, as well as structural detailing of the joints of main load-carrying parts. The configuration of the whole structure and individual structural details have been designed with respect to the static, dynamic and fatigue affects, which have been experimentally verified using loading tests of the footbridge prototype with the span of 18 m and fatigue tests of significant structural details.

Kinetics Analysis on 2PPRR-ST-2PPRR Mechanism

2012 ◽  
Vol 271-272 ◽  
pp. 1001-1005
Author(s):  
Jian Guo Luo ◽  
Mao Yan He
Keyword(s):  
Euler Method ◽  
Applied Force ◽  
Output Shaft ◽  
Complete Analysis ◽  
Kinetics Analysis ◽  
New Type ◽  
Moving Platform ◽  
Position And Orientation ◽  
Singular Configuration ◽  
The Given

New type of 2PPRR-ST-2PPRR mechanism in singular configuration,kinetics equations and Euler’s equations constructed,complete analysis of each jointed points of the moving platform carried out,inverse kinetics solution can be obtained with the given parameters,which include the position and orientation of the manipulator,applied force on the output shaft,parameters of motion of output shaft and connecting bar and sliding block,Newton-Euler method adopted to analysis its kinetics,program used to get the intuitionistic graph result of analysis,conclusion deduced from the result,difference exist in the changing rule of force of joints on upper layer platform and under layer platform,the changing rule of force of joints on the same platform is the same,sensitive exist in direction of axis x,y,z of force of joints on under layer platform,while sensitive exist in direction of axis z of force of joints on upper layer platform only.

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