scholarly journals Discussion: “Influence of Axial Load, Track Gage, and Wheel Profile on Rail Vehicle Hunting” (Hannebrink, D. N., Lee, H. S. H., Weinstock, H., and Hedrick, J. K., 1977, ASME J. Eng. Ind., 99, pp. 186–195)

1977 ◽  
Vol 99 (4) ◽  
pp. 926-927
Author(s):  
D. J. Reynolds
Keyword(s):  
Axial Load ◽  
Rail Vehicle ◽  
Wheel Profile

On-Machine Measurement and Evaluation for the Turned Wheel Profile of Rail Vehicle

2021 ◽  
Vol 70 ◽  
pp. 1-11
Author(s):  
Fei Liu ◽  
Lin Liang ◽  
Guanghua Xu ◽  
Jianmin Wang ◽  
Chenggang Hou
Keyword(s):  
Rail Vehicle ◽  
Wheel Profile ◽  
Measurement And Evaluation

Nonlinear Analysis of Rail Vehicle Forced Lateral Response and Stability

1979 ◽  
Vol 101 (3) ◽  
pp. 230-237 ◽  
Author(s):  
J. Karl Hedrick ◽  
A. V. Arslan
Keyword(s):  
Nonlinear Analysis ◽  
Frequency Domain ◽  
Numerical Algorithm ◽  
Design Tool ◽  
Statistical Linearization ◽  
Rail Vehicle ◽  
Rail Vehicles ◽  
Lateral Response ◽  
Wheel Profile ◽  
Track Irregularities

The method of statistical linearization is presented as a design tool for rail vehicles that is capable of including fundamental nonlinearities such as wheel profile geometry and suspension nonlinearities. The method is capable of predicting the response of the vehicle to statistical track irregularities as well as the onset of hunting. The fundamentals of the method, an efficient frequency domain numerical algorithm for stationary response, and a design example are presented. The design example illustrates the influence of wheel profile, gage, track roughness, and suspension variations on vehicle response and stability.

Rail vehicle passing through a turnout: analysis of different turnout designs and wheel profiles

2012 ◽  
Vol 226 (6) ◽  
pp. 587-602 ◽  
Author(s):  
Rodrigo Fernando Lagos ◽  
Asier Alonso ◽  
Jordi Vinolas ◽  
Xabier Pérez
Keyword(s):  
Significant Influence ◽  
Vehicle Dynamics ◽  
Dynamic Behaviour ◽  
Geometrical Design ◽  
Railway Vehicles ◽  
Rail Vehicle ◽  
Wheel Profile

In recent years, different systems have been developed in order to improve the dynamic behaviour of railway vehicles when passing through turnouts. Some of these improvements consist in varying the geometry of the switch itself and including moveable crossing vees. It is worth mentioning that they are designed by taking a certain wheel profile into consideration, i.e. it is assumed that the wheel profile does not change. The objective of the current study is to determine the influence that the turnout design has on vehicle dynamics, as well as the influence that the variability in wheel profiles can have on the effectiveness of the different systems. In order to do this, the MBS software Simpack was used to model one vehicle with two different turnouts and four different profiles. The results show that the geometrical design of the turnout has a critical influence on the vehicle/turnout. We also concluded that the wheel profile does not have a significant influence when the vehicle passes through turnouts.

Effects of bottom plate in friction stir welding of AA6061-T6

2020 ◽  
Vol 118 (1) ◽  
pp. 108
Author(s):  
M.A. Vinayagamoorthi ◽  
M. Prince ◽  
S. Balasubramanian
Keyword(s):  
Mechanical Properties ◽  
Axial Load ◽  
Weld Zone ◽  
Welding Process ◽  
Bottom Plate ◽  
Welding Parameters ◽  
Nugget Zone ◽  
Friction Stir ◽  
Weld Joints ◽  
Fine Grain

The effects of 40 mm width bottom plates on the microstructural modifications and the mechanical properties of a 6 mm thick FSW AA6061-T6 joint have been investigated. The bottom plates are placed partially at the weld zone to absorb and dissipate heat during the welding process. An axial load of 5 to 7 kN, a rotational speed of 500 rpm, and a welding speed of 50 mm/min are employed as welding parameters. The size of the nugget zone (NZ) and heat-affected zone (HAZ) in the weld joints obtained from AISI 1040 steel bottom plate is more significant than that of weld joints obtained using copper bottom plate due to lower thermal conductivity of steel. Also, the weld joints obtained using copper bottom plate have fine grain microstructure due to the dynamic recrystallization. The friction stir welded joints obtained with copper bottom plate have exhibited higher ductility of 8.9% and higher tensile strength of 172 MPa as compared to the joints obtained using a steel bottom plate.

A PRECAST BEAM CONNECTION DESIGNED FOR SHEAR AND AXIAL LOAD

PCI Journal ◽  
1968 ◽  
Vol 13 (3) ◽  
pp. 12-27
Author(s):  
Robert Loov
Keyword(s):  
Axial Load

Combined Bending and Axial Load in Prestressed Concrete Columns

PCI Journal ◽  
1966 ◽  
Vol 12 (3) ◽  
pp. 52-59 ◽  
Author(s):  
Paul Zia ◽  
E. C. Guillermo
Keyword(s):  
Prestressed Concrete ◽  
Axial Load ◽  
Concrete Columns
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