scholarly journals Design of steering system of a buggy

2020 ◽  
Vol 327 ◽  
pp. 03004
Author(s):  
D. Santana Sanchez ◽  
A. Mostafa
Keyword(s):  
Carrying Capacity ◽  
Steering System ◽  
Nonlinear Finite Element ◽  
Load Carrying Capacity ◽  
Dynamic Effects ◽  
Flexural Behaviour ◽  
Steering Angle ◽  
Load Carrying ◽  
And Performance ◽  
Good Agreement

The present paper discusses the design analysis and limitations of the steering system of a buggy. Many geometrical and performance characteristics of the designed steering system were considered to address the kinematic constraints and load carrying capacity of the steering elements. Ackremann geometry approach was used to assess the limiting steering angle, while Lewis bending formula with the inclusion of dynamic effects was employed to characterise the flexural properties of the rack and pinion steering system. Analytical results were numerically verified using ABAQUS/Explicit nonlinear finite element (FE) package. Good agreement has been achieved between analytical and numerical results in predicting the flexural behaviour of the steering rack and pinion system.

Theoretical Investigation of Couple Stress Squeeze Films in a Curved Circular Geometry

2011 ◽  
Vol 133 (4) ◽  
Author(s):  
Vimala Manivasakan ◽  
Govindarajan Sumathi
Keyword(s):  
Theoretical Investigation ◽  
Carrying Capacity ◽  
Couple Stress ◽  
Squeeze Flow ◽  
Squeeze Film ◽  
Load Carrying Capacity ◽  
Fluid Inertia ◽  
Load Carrying ◽  
Inertia Forces ◽  
Good Agreement

A theoretical investigation of the laminar squeeze flow of a couple-stress fluid between a flat circular static disk and an axisymmetric curved circular moving disk has been carried out using modified lubrication theory and microcontinuum theory. The combined effects of fluid inertia forces, curvature of the disk and non-Newtonian couple stresses on the squeeze film behavior are investigated analytically. Each of these effects and their combinations show a significant enhancement in the squeeze film behavior, and these are studied through their effects on the squeeze film pressure and the load carrying capacity of the fluid film as a function of time. Two different forms of the gapwidth between the disks have been considered, and the results have been shown to be in good agreement with the existing literature.

Analysis of the Load-Carrying Capability of the Casing Plug Joint of Steel Tube Structures Considering the Contact Effect

2008 ◽  
Vol 33-37 ◽  
pp. 321-326 ◽  
Author(s):  
Xiu Gen Jiang ◽  
Yang Yang ◽  
Feng Jie Zhang ◽  
Jin San Ju ◽  
Xiao Chuan You
Keyword(s):  
Finite Element ◽  
Carrying Capacity ◽  
Element Model ◽  
Steel Tube ◽  
Nonlinear Finite Element ◽  
Tube Length ◽  
Load Carrying Capacity ◽  
Ansys Software ◽  
Load Carrying ◽  
Nonlinear Finite Element Model

Nonlinear finite element model analysis of the casing plug joints of steel tubular has been realized by ANSYS software. The law of load-carrying capability and stiffness of joint are separately gained by changing the ratio of length and diameter (R/L) and the ratio of the casing length and the main tube length (l/L). The influence of the casing thickness on the load-carrying capability and stiffness are also discussed. The results indicated that the load-carrying capability and stiffness of the joints both increase with the ratio(R/L) increment and the ratio of the casing length and main tube length (l/L). When the main tube thickness is equal to casing thickness, the load-carrying capacity of joints achieves the most.

Load-Carrying Behaviour of Dowel-Type Timber Connections with Multiple Slotted-in Steel Plates

2011 ◽  
Vol 94-96 ◽  
pp. 43-47
Author(s):  
Xin Hai Fan ◽  
Sheng Dong Zhang ◽  
Wen Jun Qu
Keyword(s):  
Carrying Capacity ◽  
Steel Plates ◽  
Load Carrying Capacity ◽  
Timber Structures ◽  
Lateral Loads ◽  
Large Cross Section ◽  
Load Carrying ◽  
Timber Connections ◽  
Dowel Connection ◽  
Good Agreement

The multiple-shear dowel connection with slotted-in steel plates is one of the most efficient joints for large cross section timber structures. Experiments were performed on dowel-type timber connections with one, two and three slotted in steel plates under lateral loads parallel to the grain. Test variables include the number of steel plates, the spacing of the steel plates, and the dowel diameter. Results show that the load-carrying capacity of the dowel-type connection increased as the number and spacing of steel plates in the same thickness of timber specimens. Finally, a model of the load-carrying capacity of multiple shear steel-to-timber connections is presented, which showed good agreement with the results obtained in the experiment.

scholarly journals Flexural Load-Carrying Capacity and Dynamic Effects of RC Beam due to Running Vibration Load

2000 ◽  
Vol 49 (6Appendix) ◽  
pp. 96-103
Author(s):  
Tadashi ABE ◽  
Toshiaki SAWANO ◽  
Tetsukazu KIDA ◽  
Masaaki HOSHINO ◽  
Kiyoshi KATO
Keyword(s):  
Carrying Capacity ◽  
Rc Beam ◽  
Load Carrying Capacity ◽  
Dynamic Effects ◽  
Vibration Load ◽  
Load Carrying

scholarly journals Flexural Behaviour Of Reinforced Concrete Beams Containing Expanded Glass As Lightweight Aggregates

2015 ◽  
Vol 23 (4) ◽  
pp. 1-7 ◽  
Author(s):  
Jamal Khatib ◽  
Adrian Jefimiuk ◽  
Sammy Khatib
Keyword(s):  
Reinforced Concrete ◽  
Carrying Capacity ◽  
Concrete Beam ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Fine Aggregate ◽  
Load Carrying Capacity ◽  
Flexural Behaviour ◽  
Structural Concrete ◽  
Load Carrying

Abstract The flexural properties of reinforced concrete beams containing expanded glass as a partial fine aggregate (sand) replacement are investigated. Four concrete mixes were employed to conduct this study. The fine aggregate was replaced with 0%, 25%, 50% and 100% (by volume) expanded glass. The results suggest that the incorporation of 50% expanded glass increased the workability of the concrete. The compressive strength was decreasing linearly with the increasing amount of expanded glass. The ductility of the concrete beam significantly improved with the incorporation of the expanded glass. However, the load-carrying capacity of the beam and load at which the first crack occurs was reduced. It was concluded that the inclusion of expanded glass in structural concrete applications is feasible.

Gun Bullet Deformation Analysis for Protection Board Development

2013 ◽  
Vol 577-578 ◽  
pp. 409-412
Author(s):  
Hidetoshi Sakamoto ◽  
Yoshifumi Ohbuchi ◽  
Hiroyuki Kuramae
Keyword(s):  
Carrying Capacity ◽  
Impact Load ◽  
Fem Analysis ◽  
Deformation Analysis ◽  
Load Carrying Capacity ◽  
Collision Velocity ◽  
3 Dimensional ◽  
Load Carrying ◽  
And Performance ◽  
The Impact

In this paper, the effects of collision velocity on bullet deformation were discussed and performance of protection board made of PC (polycarbonate) plate was estimated. The deformation of the bullet and the PC board after collision were measured by 3-dimensional digitizing machine.Furthermore, the bullet collision analysis was performed by FEM analysis code "LS-DYNA", and the impact load carrying capacity of PC plate was discussed by comparing the experimental results with the analytical ones

A Yield Criterion for Hybrid Asymmetric Metal Sandwich Structures and its Application

2016 ◽  
Vol 08 (01) ◽  
pp. 1650001 ◽  
Author(s):  
Chao Yuan ◽  
Qinghua Qin ◽  
T. J. Wang
Keyword(s):  
Carrying Capacity ◽  
Yield Criterion ◽  
Sandwich Beam ◽  
Large Deflections ◽  
Load Carrying Capacity ◽  
Flat Punch ◽  
Element Analysis ◽  
Load Carrying ◽  
Axial Stretching ◽  
Good Agreement

In this paper, a yield criterion for hybrid asymmetric metal sandwich structure is proposed including the combined effects of geometrical and physical asymmetries. Taking account of the interaction of bending and axial stretching and using the yield criterion, we obtain an analytical solution for large deflections of fully clamped hybrid asymmetric sandwich beam transversely loaded by a flat punch at mid-span. Moreover, finite element analysis is performed and good agreement is achieved between numerical results and analytical predictions. It is shown that the well-designed hybrid asymmetric sandwich beam may have higher load-carrying capacity than the conventional geometrically or physically asymmetric counterpart in large deflections.

scholarly journals Suggestion of Safety Certification Standards and Performance Evaluation Methods for Fabricated Mobile Scaffold in South Korea

2021 ◽  
Vol 19 (1) ◽  
pp. 133
Author(s):  
Heesoo Kim ◽  
Jeonghyeon Lim ◽  
Jeong-Hun Won ◽  
Jun-Hyuk Kwon ◽  
Seungjun Kim
Keyword(s):  
Performance Evaluation ◽  
Carrying Capacity ◽  
Evaluation Methods ◽  
Structural Safety ◽  
Structural Performance ◽  
Load Carrying Capacity ◽  
Safety Certification ◽  
Load Carrying ◽  
Certification Standards ◽  
And Performance

At construction sites, various types of temporary equipment and structures are used for safety and work efficiency. However, various temporary equipment-related accidents frequently occur for many reasons, including inappropriate installation, usage, and material and structural imperfections. A mobile scaffold is one of the most commonly used indoor temporary equipment for work in high places. In general, the main structural members of the mobile scaffold, such as the mainframes, horizontal members, braces, caster wheels, outriggers, and handrails, are installed on the construction site for this purpose. This means that the load-carrying capacity of the equipment can vary depending on the assembly details. In Korea, there are safety certification standards applied for frequently used temporary equipment, such as scaffolds and shoring. However, the standards concern the strength criteria for the member itself, rather than the global load-carrying capacity. Therefore, it is difficult to review whether the fabricated mobile scaffold has sufficient load-carrying capacity, or to confirm the structural safety considering the various uncertainties affecting the structural performance. In this study, rational safety certification standards and evaluation methods are suggested for fabricated mobile scaffolds. The suggested safety certification standards present structure-level criteria for checking the load-carrying capacity, horizontal stiffness of the structure, and overturning risk. It is expected that the structural performance for safety can be directly checked based on the suggested safety certification standards and performance evaluation methods during the safety certification stage.

Hydrodynamic Analysis of Compliant Foil Bearings With Compressible Air Flow

2004 ◽  
Vol 126 (3) ◽  
pp. 542-546 ◽  
Author(s):  
Z.-C. Peng ◽  
M. M. Khonsari
Keyword(s):  
Carrying Capacity ◽  
Journal Bearing ◽  
Hydrodynamic Performance ◽  
Load Carrying Capacity ◽  
Bearing Surface ◽  
Hydrodynamic Analysis ◽  
Foil Bearings ◽  
Wide Range ◽  
Load Carrying ◽  
Good Agreement

A model is developed to predict the hydrodynamic performance of a foil journal bearing. The model accounts for both the compressibility of air and the compliance of the bearing surface. A series of predictions of the load-carrying capacity based on the numerical solution for pressure is presented that cover a wide range of operating speeds. The results show good agreement with existing experimental data.

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