Influence of Deformation of the Wheel Disk-Type Body on the Tooth Load Distribution over the Facewidth in Helical Gears

2014 ◽  
Vol 680 ◽  
pp. 210-215
Author(s):  
Maciej Krasiński
Keyword(s):  
Load Distribution ◽  
Helical Gears ◽  
Numerical Example ◽  
Gear Wheels ◽  
Wheel Disk ◽  
Selection Of

The article demonstrates one of the ways to reduce uneven load distribution along the width of the gear wheels which can be used in place of expensive modifications of the tooth flanks (crowning). This can be achieved by appropriate selection of the shape of the gear wheels for example the disk shape. The presented numerical example illustrates the above possibility taking into account deformability of the wheel body.

Fuselage Lift Distribution for a Swept-Back Wing Aircraft

1953 ◽  
Vol 57 (511) ◽  
pp. 464-467
Author(s):  
W. Taylor
Keyword(s):  
Mach Number ◽  
Approximate Method ◽  
Load Distribution ◽  
Numerical Example

This note suggests a method, suitable for stressing purposes, of obtaining a fuselage air-load distribution, for a swept-back wing aircraft. The method is basically that given in Ref. 1. Mach number effect on the aerodynamic centre position is discussed and an approximate method of allowing for this is suggested. A numerical example is given.

scholarly journals Mean-Variance Model for Optimal Multinational Project Adjustment and Selection

2013 ◽  
Vol 380-384 ◽  
pp. 4809-4814
Author(s):  
Xiao Li Su ◽  
Xiao Xia Huang
Keyword(s):  
Random Variables ◽  
Cash Flows ◽  
Selection Model ◽  
Selection Problem ◽  
Variance Model ◽  
Numerical Example ◽  
Mean Variance ◽  
Selection Of

This paper discusses the multinational project adjustment and selection problem in which project parameters are regarded as random variables. In the paper, adjustment of foreign existing projects and selection of the new foreign projects are considered simultaneously. Typical cash flows and value sources of foreign projects are introduced and a mean-variance optimal multinational adjustment and selection model is proposed. As an illustration, a numerical example is also presented.

A Mathematical Programming Technique for the Evaluation of Load Distribution and Optimal Modifications for Gear Systems

1973 ◽  
Vol 95 (4) ◽  
pp. 1115-1122 ◽  
Author(s):  
T. F. Conry ◽  
A. Seireg
Keyword(s):  
Mathematical Programming ◽  
Load Distribution ◽  
Effective Means ◽  
Uniform Load ◽  
Programming Technique ◽  
Type Algorithm ◽  
Gear Systems ◽  
Selection Of ◽  
Mathematical Programming Technique

A generalized technique is presented in this paper for evaluation of load distribution in gear systems and automated selection of optimal modification for the best possible distribution based on any prespecified type of modification. The procedure which utilizes a simplex-type algorithm provides an efficient and effective means for the design of gears with uniform load distribution.

Technological Surface Layer Selection for Small Module Pitches of Gear Wheels Working under Cyclic Contact Loads

2006 ◽  
Vol 513 ◽  
pp. 69-74 ◽  
Author(s):  
Z. Gawroński ◽  
J. Sawicki
Keyword(s):  
Surface Layer ◽  
Residual Stresses ◽  
Gear Wheel ◽  
X Ray ◽  
Fem Method ◽  
Contact Loads ◽  
Selection For ◽  
Gear Wheels ◽  
External Loads ◽  
Selection Of

Selection of proper technological surface layer well resistant to cyclic external loads superposed onto residual stresses is presented in this paper, with a gear wheel taken as an example. The computer simulations of external loads were carried out by means of the FEM method (Finite Element Method) with the use of the ANSYS package. Residual stresses were measured by means of the Waisman-Philips and modified X-ray sin2Ψ method. The results of the stress superposition were verified experimental by with use of a circulating power stand. The applied low pressure nitiriding method NITROVAC demonstrated a high ability to increase the durability and reliability of the discussed toothed wheel in comparison with the convencional treatment applied so far.

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