scholarly journals Optimization and Form-finding of the Heavy Cable Suspending a Deck

2021 ◽  
Vol 10 (3) ◽  
pp. 154-162
Author(s):  
J. Liu ◽  
C.Y. Wang
Keyword(s):  
Design Method ◽  
Suspension Bridges ◽  
Horizontal Distance ◽  
Form Finding ◽  
Cable Length ◽  
Maximum Tension ◽  
Dimensional Parameters ◽  
Analytic Design ◽  
Analytic Design Method

The heavy spanning cable supporting a uniform deck is important in the design of suspension bridges. The analytic design method is presented in this paper. The problem depends on three non-dimensional parameters: the ratio of cable length to the horizontal spanning distance, the ratio of vertical to horizontal distance, and the ratio of deck density to cable density. Given these parameters, useful tables of maximum tension and sag are determined. There exists an optimum cable length for which the maximum tension is minimized. In addition, it is shown that continuous loads and discrete loads are equivalent if the number of evenly-spaced discrete loads are more than 10.    

Analytic Design Method Based on Homothetic Shape of Magnetic Cores for High-Frequency Transformers

2007 ◽  
Vol 22 (5) ◽  
pp. 2070-2080 ◽  
Author(s):  
FranÇois Forest ◽  
Eric Laboure ◽  
Thierry Meynard ◽  
Mohand Arab
Keyword(s):  
High Frequency ◽  
Design Method ◽  
Magnetic Cores ◽  
Analytic Design ◽  
Analytic Design Method

An Analytic Method and Application on Design Planar Six-Bar Mechanisms with an Approximately Equal Velocity Ratio Transmission

2012 ◽  
Vol 157-158 ◽  
pp. 1380-1383
Author(s):  
Shu Nü An ◽  
Hong Xin Wang
Keyword(s):  
Design Method ◽  
Velocity Ratio ◽  
Optimization Method ◽  
Transmission Characteristics ◽  
Basic Functions ◽  
Analytic Design ◽  
Derivatives Of ◽  
Analytic Design Method ◽  
Ratio Transmission ◽  
Better Than

An analytic design method on an approximately equal velocity ratio transmission mechanism is presented. The mathematical principle is that a compound function produced by two basic functions, let its one order differential is equal to an assigned constant on the special point, and then two to three order derivatives of the compound function are all zeroes, thus one algebraic equation is got, its solution defines the mechanism dimensions. This a principle not only sets up a new design method on approximately equal velocity ratio mechanisms but approximately equal velocity is independently designed. A design example shows that this method is simpler and transmission characteristics are better than optimization method.

scholarly journals Analytic design method for optimal imaging: coupling three ray sets using two free-form lens profiles

2012 ◽  
Vol 20 (5) ◽  
pp. 5576 ◽  
Author(s):  
Fabian Duerr ◽  
Pablo Benítez ◽  
Juan C. Miñano ◽  
Youri Meuret ◽  
Hugo Thienpont
Keyword(s):  
Design Method ◽  
Free Form ◽  
Analytic Design ◽  
Analytic Design Method ◽  
Optimal Imaging

TH-C-19A-01: Analytic Design Method to Make a 2D Planar, Segmented Ion Chamber Water-Equivalent for Proton Dose Measurements

2014 ◽  
Vol 41 (6Part32) ◽  
pp. 547-547
Author(s):  
W Harris ◽  
R Hollebeek ◽  
B Teo ◽  
R Maughan ◽  
D Dolney
Keyword(s):  
Design Method ◽  
Ion Chamber ◽  
Analytic Design ◽  
Dose Measurements ◽  
Analytic Design Method ◽  
Proton Dose

Semi‐analytic design method for dual‐band power amplifiers

2015 ◽  
Vol 51 (17) ◽  
pp. 1336-1337 ◽  
Author(s):  
Zhijiang Dai ◽  
Songbai He ◽  
Jingzhou Pang ◽  
Chaoyi Huang
Keyword(s):  
Power Amplifiers ◽  
Design Method ◽  
Dual Band ◽  
Band Power ◽  
Analytic Design ◽  
Analytic Design Method

Influence of Electromagnetic Characteristics of Shaft Material on the Performance of Induction Motor

2019 ◽  
Vol 20 (5) ◽  
Author(s):  
Wenzhong Zhang ◽  
Xutian Zou ◽  
Junfeng Sun
Keyword(s):  
Induction Motor ◽  
Motor Performance ◽  
Design Method ◽  
Large Diameter ◽  
Three Phase ◽  
Key Factor ◽  
Electromagnetic Characteristics ◽  
The Difference ◽  
Analytic Design ◽  
Analytic Design Method

Abstract Shaft is an important part of rotor, whose electromagnetic characteristics have an impact on the performance of the motor, especially when large diameter shaft and thin rotor yoke are adopted in the two-pole induction motor. Taking a 3 kW two-pole three-phase induction motor as an example, the two-dimensional electromagnetic field model of the motor is established by using finite element method. Firstly, by analyzing the difference of current, power factor, loss and magnetic field distribution of the motor with different shafts that are made from ferromagnetic and non-ferromagnetic materials. It is determined that the different magnetic saturation degree of rotor yoke is the key factor affecting the performance of motor when different shaft materials are used. Secondly, it is verified that the traditional analytic design method has the inaccurate design problem of the rotor yoke height due to neglecting the specific electromagnetic characteristics of shaft material. Finally, by comparing the differences of motor performance when several common magnetic shaft materials are used in motor shafts, the advantages of various shaft materials in improving motor performance are found. The presented results give guidelines to selecting shaft materials to improve motor performance.

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