Optimum Design of Crown Brakes

15th Design Automation Conference: Volume 2 — Design Optimization ◽

10.1115/detc1989-0080 ◽

1989 ◽

Author(s):

A. Elbella ◽

A. Seireg

Keyword(s):

Optimum Design ◽

Heat Input ◽

Thermal Load ◽

Load Sharing ◽

Outer Radius ◽

Brake Rotor

Abstract The use of crown brakes with heat input from both the inner and outer surfaces has been suggested as a means of improving the performance of frictional brakes. This paper presents an algorithm for the design of the optimal thermal load sharing and configuration of the rotor for brakes with different ratios of inner to outer radius. Several illustrative examples are considered and the results show that significant improvement in the performance and weight of the brake rotor can be achieved by this approach.

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Optimum Design of Crown Brakes

Journal of Mechanical Design ◽

10.1115/1.2912646 ◽

1990 ◽

Vol 112 (4) ◽

pp. 557-562

Author(s):

A. Elbella ◽

A. Seireg

Keyword(s):

Optimum Design ◽

Heat Input ◽

Thermal Load ◽

Load Sharing ◽

Outer Radius ◽

Brake Rotor

The use of crown brakes with heat input from both the inner and outer surfaces has been suggested as a means of improving the performance of frictional brakes. This paper presents an algorithm for the design of the optimal thermal load sharing and configuration of the rotor for brakes with different ratios of inner and outer radius. Several illustrative examples are considered and the results show that significant improvement in the performance and weight of the brake rotor can be achieved by this approach.

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Optimization of asymmetric I-beams for minimum welding shrinkage

Pollack Periodica ◽

10.1556/606.2021.00363 ◽

2021 ◽

Author(s):

Károly Jármai ◽

Máté Petrik

Keyword(s):

Aluminum Alloys ◽

Objective Function ◽

Yield Stress ◽

Optimum Design ◽

Heat Input ◽

Local Buckling ◽

Minimum Mass ◽

Span Length ◽

Steel Grades ◽

Calculation System

AbstractA calculation system has been developed to determine the optimum dimensions of asymmetric I-beams for minimum shrinkage. The objective function is the minimum mass; the unknowns are the I-beam dimensions; the constraints are the stress, local buckling, and deflection. Different steel grades have been considered (235, 355, 460 (MPa) yield stress) and other aluminum alloys (90, 155, 230 (MPa) yield stress). The material, the span length, the loading, and the applied heat input have been changed. It is shown, that using optimum design; the welding shrinkage can be reduced with prebending and can save material cost as well.

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