Research on Pulley Strain of Metal Belt CVT

2014 ◽  
Vol 952 ◽  
pp. 249-252
Author(s):  
Wu Zhang ◽  
Wei Guo ◽  
Fa Rong Kou ◽  
Yi Zhi Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Method ◽  
Compressive Strain ◽  
Continuously Variable Transmission ◽  
Transmission Ratio ◽  
Element Analysis ◽  
Variable Transmission

Pulley strain aggravated whole-Part abrasion, affected friction and lubricates state of metal belt continuously variable transmission. Pulley strain was analyzed by analytical method and finite element analysis. The results indicate that with the increase of transmission ratio, the driver pulley compressive strain is increases after reduces for a while, and the driven pulley increase. Compressive strain dense when radius is lesser and vice versa. Two methods results are basically the same, whereby demonstrating that the model is rational and that the analysis results are reliable.

Performance enhancement of normal contact ratio gearing system through correction factor

2019 ◽  
Vol 13 (3) ◽  
pp. 5242-5258
Author(s):  
R. Ravivarman ◽  
K. Palaniradja ◽  
R. Prabhu Sekar
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Correction Factor ◽  
Bending Strength ◽  
Performance Enhancement ◽  
Transmission Ratio ◽  
Contact Ratio ◽  
Element Analysis ◽  
Normal Contact ◽  
Root Region

As lined, higher transmission ratio drives system will have uneven stresses in the root region of the pinion and wheel. To enrich this agility of uneven stresses in normal-contact ratio (NCR) gearing system, an enhanced system is desirable to be industrialized. To attain this objective, it is proposed to put on the idea of modifying the correction factor in such a manner that the bending strength of the gearing system is improved. In this work, the correction factor is modified in such a way that the stress in the root region is equalized between the pinion and wheel. This equalization of stresses is carried out by providing a correction factor in three circumstances: in pinion; wheel and both the pinion and the wheel. Henceforth performances of this S+, S0 and S- drives are evaluated in finite element analysis (FEA) and compared for balanced root stresses in parallel shaft spur gearing systems. It is seen that the outcomes gained from the modified drive have enhanced performance than the standard drive.

scholarly journals Stiffness prediction for bolted moment-connections in cold-formed steel trusses

2020 ◽  
Vol 41 (1) ◽  
Author(s):  
Apai Benchaphong ◽  
Rattanasak Hongthong ◽  
Sutera Benchanukrom ◽  
Nirut Konkong
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Method ◽  
Truss Structures ◽  
Rotational Stiffness ◽  
Element Analysis ◽  
Moment Connection ◽  
Rigid Connection ◽  
Cold Formed Steel ◽  
Steel Trusses

The purpose of this research was to study the behavior of cold-formed steel cantilever truss structures. A cantilever truss structure and bolt-moment connection were tested and verified by the 3D-finite element model. The verification results showed a good correlation between an experimental test and finite element analysis. An analytical method for elastic rotational stiffness of bolt-moment connection was proposed. The equation proposed in the analytical method was used to approximate the elastic rotational stiffness of the bolt group connection, and was also applied to the Richard-Abbott model for generating the nonlinear moment-rotation curve which modeled the semi-rigid connection stiffness. The 2D-finite element analysis was applied to study the behavior of the truss connection, caused by semi-rigid connection stiffness which caused a change of force to the truss elements. The results showed that the force in the structural members increased by between 13.62%-74.32% of the axial forces, and the bending moment decreased by between 33.05%-100%. These results strongly suggest that the semi-rigid connection between cold-formed steel cantilever truss structures should be considered in structural analysis to achieve optimum design, acknowledging this as the real behavior of the structure.

Risk-Based Stability Assessment of a Gantry Crane

2014 ◽  
Author(s):  
Bin Xu ◽  
Zhongjian Yu ◽  
Yuqing Yang ◽  
Xiaoying Tang ◽  
Tao Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Method ◽  
Engineering Application ◽  
Structure Design ◽  
Gantry Crane ◽  
Stability Assessment ◽  
Element Analysis ◽  
Risk Elements ◽  
Assessment Approach

Stability of a gantry crane was a challenge in its structure design. A new risk-based stability assessment approach was proposed in this paper. Analytical method was introduced firstly, and then finite element method was adopted to evaluate the stability of square bar. In order to verify the finite element models, results of buckling analysis were compared with the results of analytical method. Secondly, this finite element analysis was applied in stability assessment of a gantry crane, and through parameterized analysis risk elements were identified. Finally, risk-based stability assessment was applied to this gantry crane, and neural network algorithm was adopted to evaluate the risk elements which were defined by finite element analysis. The evaluating results were well consistetent with statistical data, which indicated this risk-based stability assessment approach was reliable which showed a potential in engineering application.

scholarly journals An Analytical Method for Modelling Pull-In Effect during Anodic Bonding

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 969
Author(s):  
Qiuxu Wei ◽  
Bo Xie ◽  
Yulan Lu ◽  
Deyong Chen ◽  
Jian Chen ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Method ◽  
Anodic Bonding ◽  
Capacitive Sensors ◽  
Common Phenomenon ◽  
Sensors And Actuators ◽  
Element Analysis ◽  
Effect Model

Pull-in effect is a common phenomenon during anodic bonding, a key step in thefabrication processes of capacitive sensors and actuators. To assist the designs and fabrications ofthese transducers, this paper presents an analytical method for modelling the pull-in effect duringanodic bonding. The pull-in effect model was verified by finite element analysis and a verificationexperiment respectively. The verification results indicate that the analytical method for modellingthe pull-in effect during anodic bonding is capable for predicting pull-in voltages of anodicallybonded capacitive sensors and actuators in a universal and practical manner without any additionalfabrication process.

Deflection Analysis of Non Prismatic Beam with Trapezoidal Sectorial Section with Uniformly Perpendicular Loading Condition

2016 ◽  
Vol 26 ◽  
pp. 1-10 ◽  
Author(s):  
Chetankumar M. Patel ◽  
Kartik D. Kothari ◽  
Ghanshyam D. Acharya
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Method ◽  
Loading Condition ◽  
Engineering Application ◽  
Complex Loading ◽  
Element Analysis ◽  
Prismatic Beam ◽  
Deflection Analysis ◽  
Analytical Result

Non-prismatic beams are extensively used for many engineering application. Due to varying section, deflection analysis becomes very complex. Loading condition also makes the whole theory complex. This paper shows analytical analysis for the deflection of trapezoidal sectorial section with uniformly perpendicular loading condition. The method illustrated is comparatively easy and can be applied for the similar other sections as well. Analytical method is validated using Finite Element Analysis using Creo Simulation which shows good amount of match with analytical result.

Finite element analysis of belt skew caused by angular misalignment of rollers

2004 ◽  
Vol 218 (10) ◽  
pp. 1223-1232 ◽  
Author(s):  
H Cheng ◽  
K Yoshida ◽  
S Yanabe
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Method ◽  
Simulation System ◽  
Maximum Efficiency ◽  
Finite Element Code ◽  
Angular Misalignment ◽  
Element Analysis ◽  
Optimal Position ◽  
Spiral Angle

In machines that handle flexible media with flat belts, it is necessary to prevent belt skew for the machines to operate at higher precision and maximum efficiency. However, the skewing mechanism has not yet been clarified. Therefore, in order to establish a method that could be used to analyse the skew of a flat belt, a simulation system is developed using a commercial finite element code (MARC). Also, the skew mechanism in two- and three-roller systems is also studied through simulations and clarified to show that the skew rate equals the spiral angle of the belt wrapping around the roller. Moreover, it is found that a steering roller that is set in an optimal position is needed to reduce belt skew efficiently. The analytical method and the findings from this study are useful in designing any flat-belt mechanism.

P‐35: An Analytical Method of Small‐Module Fracture Dropping Based on Finite‐Element Analysis

2021 ◽  
Vol 52 (1) ◽  
pp. 1196-1198
Author(s):  
Xiaohua Li ◽  
Lei Zhu ◽  
Qing Guo ◽  
Wei Zhou ◽  
Bingchuan Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Analytical Method ◽  
Element Analysis

scholarly journals SEALING PERFORMANCE OF GASKETED FLANGE JOINTS – A PARAMETRIC STUDY

2014 ◽  
Vol 15 (2) ◽  
Author(s):  
Muhammad Abid ◽  
Javed A Chattha ◽  
Kamran A Khan ◽  
Hafiz A Wajid
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Porous Media ◽  
Compressive Strain ◽  
Media Theory ◽  
Leak Rate ◽  
Element Analysis ◽  
Porous Media Theory ◽  
Sealing Performance ◽  
Bolted Flange

ABSTRACT: This paper aims at finding the leak rate through ANSI class#150 flange joints using compressed asbestos sheet gasket under combined structural and thermal transient loading conditions. The solution is obtained using two different leak rate models and two different bolt up values. The gasket compressive strain based model employs strains that are determined using finite element analysis. The other model is based on the porous media theory in which gasket is considered as porous media. Leak rates determined using these leak rate models are compared for different tightness classes and discussed. ABSTRAK: Kajian bertujuan mencari kadar bocor menerusi sambungan bebibir kelas ANSI#150 menggunakan gasket kepingan asbestos termampat di bawah kondisi bebanan gabungan struktur dan terma fana. Solusinya diperolehi dengan menggunakan dua model kadar bocor yang berbeza dan dua nilai atas bolt yang berlainan. Model terikan berasaskan pemampat gasket menggunakan terikan yang ditentukan dengan analisis unsur terhingga. Model yang lainnya berasaskan teori bahantara berongga di mana gasket digunakan sebagai medium. Kadar bocor ditentukan dengan menggunakan model kadar bocor, yang kemudiannya dibandingkan pada kelas keketatan yang berbeza dan keputusannya dibincangkan.KEYWORDS: bolted flange; gasket; leak rate; finite element analysis; tightness class compressive strains; porous media

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