scholarly journals Optimum design of rotary machine with overhung weight. Part II Numerical and experimental results.

1985 ◽  
Vol 51 (461) ◽  
pp. 56-63
Author(s):  
Atsuo SUEOKA ◽  
Hideyuki TAMURA ◽  
Yoshihiro TSUDA ◽  
Makoto SAMEJIMA
Keyword(s):  
Optimum Design ◽  
Experimental Results ◽  
Rotary Machine ◽  
Weight Part

scholarly journals Optimum Design of Rotating Machine with Overhung Weight : Part 2, Numerical and Experimental Results

1985 ◽  
Vol 28 (243) ◽  
pp. 2064-2072
Author(s):  
Atsuo SUEOKA ◽  
Hideyuki TAMURA ◽  
Yoshihiro TSUDA ◽  
Makoto SAMEJIMA
Keyword(s):  
Optimum Design ◽  
Experimental Results ◽  
Rotating Machine ◽  
Weight Part

Stresses in compact end closures for cylindrical pressure vessels

1969 ◽  
Vol 4 (1) ◽  
pp. 57-64
Author(s):  
R W T Preater
Keyword(s):  
Cylindrical Shell ◽  
Rigid Body ◽  
Optimum Design ◽  
Cross Section ◽  
Experimental Verification ◽  
Pressure Vessels ◽  
Rigid Body Motion ◽  
Experimental Results ◽  
Body Motion ◽  
Annular Ring

Three different assumptions are made for the behaviour of the junction between the cylindrical shell and the end closure. Comparisons of analytical and experimental results show that the inclusion of a ‘rigid’ annular ring beam at the junction of the cylider and the closure best represents the shell behaviour for a ratio of cylinder mean radius to thickness of 3–7, and enables a prediction of an optimum vessel configuration to be made. Experimental verification of this optimum design confirms the predictions. (The special use of the term ‘rigid’ is taken in this context to refer to a ring beam for which deformations of the cross-section are ignored but rigid body motion is permitted.)

OPTIMUM DESIGN OF CANTILEVERED MICROPROBES FOR INSPECTING LCD PANELS AND MEASUREMENT OF CONTACTING FORCES

2010 ◽  
Vol 24 (15n16) ◽  
pp. 2429-2434 ◽  
Author(s):  
CHEOL KIM ◽  
KWANG-JOONG KIM
Keyword(s):  
Shape Optimization ◽  
Optimum Design ◽  
Measuring Equipment ◽  
Optimization Technique ◽  
Experimental Results ◽  
Design Requirement ◽  
Fine Pitch ◽  
Mems Fabrication ◽  
Topology And Shape Optimization ◽  
Design Requirements

Fine pitch microprobe arrays are microneedle-like probes for inspecting the pixels of LCD panels or IC. They are usually made of multi-layers of metallic, nonmetallic, or combination of the two. The design requirement for a contacting force is less than 2 gf and a deflection should be less than 100 µm. Many microprobe shapes satisfying the design requirements are possible. A cantilever-type microprobe having many needles was chosen and optimized in this study. Several candidate shapes were chosen using topology and shape optimization technique subjected to design requirements. Then, the microprobe arrays were fabricated using the process applied for MEMS fabrication and they were made of BeNi , BeCu , or Si . The contact probing forces and deflections were measured for checking the results from optimum design by newly developed measuring equipment in our laboratory. Numerical and experimental results were compared and both showed a good correlation.

scholarly journals Micro Electromagnetic Actuator - Static Behavior

2018 ◽  
Vol 220 ◽  
pp. 05003 ◽  
Author(s):  
Constantin Daniel Comeaga ◽  
Dragos Ovezea ◽  
Cristinel Ilie
Keyword(s):  
Comparative Study ◽  
Modeling And Simulation ◽  
Optimum Design ◽  
Experimental Results ◽  
Classical Type ◽  
Electromagnetic Actuator ◽  
Static Behavior ◽  
Material Parameters ◽  
Good Linearity ◽  
Different Types

The article presents a comparative study regarding the design and experimental results for a miniature electromagnetic actuator with a modified design comparing with the classical type, including a mobile array of micro-magnets and a fixed coil in two configurations (planar spiral multi-layered and cylindrical). Previous work on design, modeling and simulation of this type of actuator indicated the optimum design and conducted to dimensions and material parameters. Different types of actuators were produced and experimentally tested, showing good results but also some drawbacks. Three of these design solutions are presented together with the static voltage-deflection and electrical impedances curves, experimentally derived. The results confirmed the feasibility of two actuating solution, showing good linearity and possibility to control the position at h accuracy and indicated improving directions.

Optimum Design, Manufacturing and Experiment of a Passive Walking Biped: Effects of Structural Parameters on Efficiency, Stability and Robustness on Uneven Trains

2013 ◽  
Vol 307 ◽  
pp. 107-111
Author(s):  
S.M. Hadi Sadati ◽  
M. Borgheinejad ◽  
H. Fooladi ◽  
M. Naraghi ◽  
A.R. Ohadi
Keyword(s):  
Limit Cycle ◽  
Optimum Design ◽  
Structural Parameters ◽  
Center Of Mass ◽  
Stable Limit Cycle ◽  
Experimental Results ◽  
External Control ◽  
Stable Limit ◽  
Walking Performance ◽  
The Impact

Passive walkers perform a walking like stable limit cycle on small slopes without any external control. In this research, a deployed model of biped that can be built has been considered, and then its walking performance sensitivity such as efficiency, stability and robustness on uneven trains due to variation of structural parameters and their optimum limits have been investigated. It was shown that the foot arc radius and center of mass height have the most important effect on walking performance. After doing simulations in MSC.ADAMS software, an optimum design trend has been suggested. At the end based on experimental results, it was shown beside optimization of structural parameters, the impact condition is very important to achieve optimal walking.

Comparison of Analytical Models of Force Prediction during Dynamic Bending Stage for 3-Roller Conical Bending Process

2014 ◽  
Vol 1016 ◽  
pp. 150-155
Author(s):  
Mahesh Chudasama ◽  
Harit K. Raval
Keyword(s):  
Shear Stress ◽  
Analytical Model ◽  
Optimum Design ◽  
Experimental Results ◽  
Analytical Models ◽  
Force Prediction ◽  
Bending Force ◽  
Bending Process ◽  
Dynamic Bending ◽  
Bottom Roller

Conical bending process using three rollers with different configurations is a widely used process for manufacturing conical sections and shells in the industries. The process involves static as well dynamic stages. For optimum design of the machine, accurate analytical model of the force prediction is required for static as well dynamic bending stages. In this paper the analytical models considering three different stress conditions have been compared with the experimental results. The observations of the comparison have been reported. It is concluded that for higher bottom roller inclination, the shear stress has to be considered for evaluation of bending force whereas for lower bottom roller inclination it can be neglected.

Research on Optimum Design and Simulation of Gear Reducer in Electric Steering Engine

2008 ◽  
Vol 392-394 ◽  
pp. 767-770
Author(s):  
Fu Chun Tao ◽  
J. Liu ◽  
G.L. Wang ◽  
Y. Shi
Keyword(s):  
Optimum Design ◽  
Structure Design ◽  
Experimental Results ◽  
Three Dimension ◽  
Motion Simulation ◽  
Module Design ◽  
Design Scheme ◽  
Implementation Method ◽  
Working Procedure ◽  
Carrier Rocket

Electric steering engine was generally applied in arm systems such as carrier rocket and missile, its life period is very short, and the space and weight of its reducer were strictly restricted, so it is not fit to adopt the conventional rule of infinite life to design electric steering engine gear reducer. This paper carried out the optimum design for it based on the rule of finite life and space, provided and demonstrated a new design scheme, and realized the interior overall structure design of reducer. We used the UG plane to realize three-dimension module design and virtual assembly of gear reducer, elaborated the implementation method of three-dimension motion simulation by the parameter drive mechanism, and simulated the actual working procedure. Experimental results indicated that this gear reducer satisfied excellently the requirement of big drive ratio under the finite life and space.

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