Manufacturing Requirements from a Probabilistic Design Analysis Approach to Optimizing for Robust Design

1994 ◽  
pp. 412-431
Author(s):  
G. E. Orient ◽  
K. R. Rajagopal ◽  
D. L. O’Connor ◽  
J. F. Newell
Keyword(s):  
Robust Design ◽  
Design Analysis ◽  
Analysis Approach ◽  
Probabilistic Design

Robust Design Analysis on Fatigue Life of Lead-Free Sn0.5Ag Solder in a Multichip Module Package

2013 ◽  
Vol 284-287 ◽  
pp. 375-379 ◽  
Author(s):  
Chieh Kung
Keyword(s):  
Fatigue Life ◽  
Integrated Circuits ◽  
Robust Design ◽  
High Speed ◽  
Flip Chip ◽  
Design Analysis ◽  
Influential Factor ◽  
Fatigue Reliability ◽  
Chip Technology ◽  
Ic Package

System-in-package (SiP) has become a mainstream technology in IC package industry as it provides the solutions to the growing needs of high speed functions, mobility/portability, energy efficiency, and miniaturization of electronic products. One special form of SiP is the multi-chip module (MCM) in which multiple integrated circuits (ICs), semiconductor dies or other discrete components are packaged onto a unifying substrate. Thus, the reliability of package integrity becomes one of the major reliability concerns. In the present paper, a robust design analysis on the thermo-mechanical reliability of an MCM package with flip-chip technology is demonstrated. Our results show that for the specific package, the CTE of the substrate is the most influential factor to the fatigue reliability of the package. The optimal combination of the parameters is recommended. The robust design analysis optimizes the fatigue life from 165 cycles to 1080 cycles which is a 554.5% gain on the fatigue life.

scholarly journals Preliminary Sizing of a Medium Range Blended Wing-Body using a Multidisciplinary Design Analysis Approach

2018 ◽  
Vol 233 ◽  
pp. 00014 ◽  
Author(s):  
Alessandro Sgueglia ◽  
Peter Schmollgruber ◽  
Emmanuel Benard ◽  
Nathalie Bartoli ◽  
Joseph Morlier
Keyword(s):  
Fuel Consumption ◽  
Aircraft Design ◽  
Design Analysis ◽  
Multidisciplinary Design ◽  
Analysis Approach ◽  
Medium Range ◽  
Blended Wing Body ◽  
Reduce Emissions

The aviation's goal for the next decades is to drastically reduce emissions, but to achieve this goal a breakdown in aircraft design has to be considered. One of the most promising concepts is the Blended Wing- Body, which integrates aerodynamics, propulsion and structure, and has a better aerodynamics efficiency, thanks to the reduction of the wetted surfaces. In this work the feasibility of a short/medium range BWB with 150 passengers (A320 Neo type aircraft, Entry Into Service 2035) is studied, considering different disciplines into the sizing process. The design loop has been reviewed to consider the unconventional concept. Also certification aspects have been taken into account in an off-design analysis. To evaluate the advantages of the proposed concept, it has been compared with an aircraft of the same class, the A320 Neo, resized to match the EIS2035 hypothesis: results show that the BWB is a concept that demonstrates a gain in fuel consumption, especially on longer ranges.

A Design Analysis Approach for Improving the Stability of Dynamic Systems with Application to the Design of Car-Trailer Systems

2005 ◽  
Vol 11 (12) ◽  
pp. 1487-1509 ◽  
Author(s):  
Y. He ◽  
H. Elmaraghy ◽  
W. Elmaraghy
Keyword(s):  
Dynamic Systems ◽  
Stability Criterion ◽  
Degrees Of Freedom ◽  
Integrated Approach ◽  
Design Analysis ◽  
Analysis Approach ◽  
Dynamic Mode ◽  
Stability Characteristic ◽  
Design Variables ◽  
The Stability

A design analysis approach is developed for improving the stability of dynamic systems subject to non-conservative forces. It combines genetic algorithms, sequential quadratic programming (SQP), and dynamic mode tracking (DMT). The proposed approach automatically optimizes the stability criterion and is applicable to rotor dynamics, wind turbine dynamics, aeronautics, and ground vehicle dynamics. The Routh-Hurwitz criterion has traditionally been used for determining the stability characteristics of these dynamic systems. In the conventional trial and error approaches, designers iteratively change the values of the design variables and reanalyze until an acceptable stability characteristic is achieved. This is both time-consuming and tedious. The proposed approach automates the design/analysis cycle by using the DMT technique to identify the modes; then, the SQP algorithm determines the stability criterion; and finally a genetic algorithm is applied to optimize design variables. The proposed integrated approach has been tested and evaluated numerically using a linearized car-trailer model with three degrees of freedom and the results demonstrate its feasibility and efficacy. The performed parametric sensitivity analysis revealed that the geometric parameters have a much greater influence on the lateral stability of the vehicle systems, compared with inertia parameters and torsional spring stiffness coefficients.

Robust Design Analysis

2012 ◽  
pp. 131-143
Author(s):  
Marco Cavazzuti
Keyword(s):  
Robust Design ◽  
Design Analysis

The improvement of assembly process and environmental impact using the integration of DFMA and sustainable design analysis approach: Case study of spotlight

2021 ◽  
Author(s):  
M. S. M. Effendi ◽  
Z. Shayfull ◽  
H. Radhwan ◽  
Shafeeq Ahmad Shamim Ahmad ◽  
Muhammad Mustaqim Muslim ◽  
...  
Keyword(s):  
Environmental Impact ◽  
Sustainable Design ◽  
Design Analysis ◽  
Analysis Approach ◽  
Assembly Process

Robust Design of a Dynamic System Using a Probabilistic Design Method

2011 ◽  
Vol 35 (10) ◽  
pp. 1171-1178 ◽  
Author(s):  
Jang-Hee Ryu ◽  
In-Sang Choi ◽  
Joo-Sung Kim ◽  
Young-Kap Son
Keyword(s):  
Dynamic System ◽  
Robust Design ◽  
Design Method ◽  
Probabilistic Design
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