Design of Robust Interfaces in Modular Products

2000 ◽  
Author(s):  
Michael Blackenfelt ◽  
Ulf Sellgren
Keyword(s):  
Robust Design ◽  
Shape Optimisation ◽  
Design Technique ◽  
Modular Products ◽  
In The Beginning

Abstract The design of module interfaces is very important when developing so-called modular products. The interfaces should not only be designed for the module variety but should also be specified early to allow parallel activities. This paper outlines an approach where the interfaces, in the beginning of the process, are defined within some bounds. Later when more information about the modules and their variety is available the interface is conceptualised by topological optimisation and detailed by shape optimisation. The shape optimisation is however complemented with Robust Design technique in order to increase the interface commonality for the variety range.

Implementation of the MIMIC Robust Design Technique

1997 ◽  
Author(s):  
David C. Williamson ◽  
Clare D. Thiem
Keyword(s):  
Robust Design ◽  
Design Technique

Profit Maximisation While Considering Uncertainty by Balancing Commonality and Variety Using Robust Design: The Redesign of a Family of Lift Tables

2000 ◽  
Author(s):  
Michael Blackenfelt
Keyword(s):  
Robust Design ◽  
Low Cost ◽  
Building Blocks ◽  
Product Performance ◽  
Cost Models ◽  
Quality Loss Function ◽  
Economy Of Scale ◽  
Modular Products ◽  
The Right ◽  
Profit Maximisation

Abstract Traditionally modular products refer to products that fulfil various overall functions through the combination of distinct building blocks. The most central idea behind product modularisation is to retain or even increase customer satisfaction through product customisation, while increasing or retaining economy of scale. However, both business and technical aspects must be considered in order to find the right balance between commonality and variety and thus between low cost and distinctive product performance. This paper outlines a balancing approach based on available cost models and a transfer of product performance to monetary terms using the so-called quality loss function. Based on the economical relations, Robust Design is employed to optimise the degree of variety in order to maximise the profit while considering the forecast uncertainty.

Optimization of Gear Blank Casting Process by Using Taguchi's Robust Design Technique

2003 ◽  
Vol 15 (3) ◽  
pp. 351-359 ◽  
Author(s):  
Mohd. Muzammil ◽  
Prem Pal Singh ◽  
Faisal Talib
Keyword(s):  
Robust Design ◽  
Casting Process ◽  
Design Technique

scholarly journals Evaluation of Mechanical and Wear Properties of Ceramic and Inorganic compounds based Composite via PM route and Optimization through Robust design technique

2022 ◽  
Author(s):  
SURESHKUMAR P ◽  
suresh kumar ◽  
T. Jagadeesha ◽  
L. Natrayan ◽  
M. Ravichandran ◽  
...  
Keyword(s):  
Robust Design ◽  
Base Alloy ◽  
Inorganic Compounds ◽  
Matrix Material ◽  
Wear Test ◽  
Dry Sliding Wear ◽  
Design Technique ◽  
Wear Properties ◽  
Weight Percentage ◽  
Step Interval

Abstract The present research study investigates the Mechanical, Physical, and Tribological properties of powder metallurgy (PM) produced AA6063 alloy reinforced with silicon nitride (Si3N4) and copper nitrate (CuN2O6). Incorporation of Si3N4 & CuN2O6 reinforcement in matrix material ranged from 6 to 12 % Si3N4 in a 6-step interval and 2 to 6 %CuN2O6 in a two-step interval. The characterizations were made on the PM-produced specimens using OM, EDS, XRD, and Hardness. The reinforcement particles were uniformly distributed, which was attributed to a homogeneous mixer of matrix and reinforcements. The test findings show that as the reinforcing percentage of the ceramic and inorganic compound increases, properties such as hardness and density rise considerably and monolithically. The existence of phases such as Si3N4 and CuN2O6 reinforcement in the AA6063 matrix was ensured by X-ray diffraction. The hardness of AA6063/12%Si3N4/6%CuN2O6 increased by 88% over the base alloy due to a mismatch in thermal expansion between the Al matrix and reinforcement, which causes massive internal stress, causing the aluminium matrix to plastically deform to accommodate the reduced volume expansion of Si3N4 and CuN2O6 particles. The dry sliding wear test was determined using the Pin-on-Disc method, and the results show that the composite is more wear-resistant. An orthogonal array and analysis of variance were utilized to evaluate the solution, including parameters using the Taguchi robust design technique. The weight percentage of the Si3N4/CuN2O6 compound and the relationship between weight % of reinforcement and applied load had the most significant impact on composite wear resistance. The produced composite's wear morphology was studied using images from a scanning electron microscope and energy dispersive spectroscopy.

Stochastic Improvement of the Residual Strength of a Stiffened Panel

2007 ◽  
Vol 348-349 ◽  
pp. 301-304 ◽  
Author(s):  
Francesco Caputo ◽  
Giuseppe Lamanna ◽  
Alessandro Soprano
Keyword(s):  
Stochastic Processes ◽  
Robust Design ◽  
Residual Strength ◽  
Stiffened Panel ◽  
Design Technique ◽  
Target Variable ◽  
Design Improvement ◽  
The Mean ◽  
Noise Factors

The objective of robust design is to optimize the mean of a given target variable and to minimize the variability that results from uncertainty represented by “noise” factors. A recent strategy for robust design is based on stochastic processes, which has resulted in a new design technique called “stochastic design improvement” (SDI). In this work a home-made procedure is presented, which is based on the SDI technique and which is illustrated with reference to a case study which aims to increase the residual strength of a cracked stiffened aluminum panel.

Drug Induced Changes in Cell Organelles

1968 ◽  
Vol 26 ◽  
pp. 110-111
Author(s):  
Sarah A. Luse
Keyword(s):  
Clinical Medicine ◽  
Cell Organelles ◽  
Riboflavin Deficiency ◽  
Drug Induced ◽  
New Era ◽  
Health And Disease ◽  
In The Beginning ◽  
Cellular Pathology ◽  
Induced Changes ◽  
The Impact

In the mid-nineteenth century Virchow revolutionized pathology by introduction of the concept of “cellular pathology”. Today, a century later, this term has increasing significance in health and disease. We now are in the beginning of a new era in pathology, one which might well be termed “organelle pathology” or “subcellular pathology”. The impact of lysosomal diseases on clinical medicine exemplifies this role of pathology of organelles in elucidation of disease today.Another aspect of cell organelles of prime importance is their pathologic alteration by drugs, toxins, hormones and malnutrition. The sensitivity of cell organelles to minute alterations in their environment offers an accurate evaluation of the site of action of drugs in the study of both function and toxicity. Examples of mitochondrial lesions include the effect of DDD on the adrenal cortex, riboflavin deficiency on liver cells, elevated blood ammonia on the neuron and some 8-aminoquinolines on myocardium.

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