Design of Semiautomatic Standardizing Machines for Load Cells Testing

1976 ◽  
Vol 98 (1) ◽  
pp. 124-130
Author(s):  
Adam Morecki ◽  
Wiktor Narkiewicz ◽  
M. A. Townsend
Keyword(s):  
Optimal Design ◽  
Mechanical System ◽  
Load Cells ◽  
Systematic Synthesis

The paper deals with the systematic synthesis of semiautomatic standardizing machines used for load cells testing. The principal requirements are formulated and an evolutionary (such as followed in optimal design) is given. Of special note is the extreme accuracy required (0.01 percent) and acheived in a relatively large mechanical system. The paper includes some results of analyses made for two types of machines and data obtained from tests and long-term utilization of these machines.

Multi-Object Multi-Discipline Probabilistic Design of High-Pressure Turbine Blade-Tip Radial Running Clearance

2013 ◽  
Vol 572 ◽  
pp. 551-554
Author(s):  
Wen Zhong Tang ◽  
Cheng Wei Fei ◽  
Guang Chen Bai
Keyword(s):  
Mathematical Model ◽  
High Pressure ◽  
Optimal Design ◽  
Mechanical System ◽  
High Accuracy ◽  
Probabilistic Design ◽  
High Pressure Turbine ◽  
Surface Method ◽  
Blade Tip ◽  
The Mathematical Model

For the probabilistic design of high-pressure turbine (HPT) blade-tip radial running clearance (BTRRC), a distributed collaborative response surface method (DCRSM) was proposed, and the mathematical model of DCRSM was established. From the BTRRC probabilistic design based on DCRSM, the static clearance δ=1.865 mm is demonstrated to be optimal for the BTRRC design considering aeroengine reliability and efficiency. Meanwhile, DCRSM is proved to be of high accuracy and efficiency in the BTRRC probabilistic design. The present study offers an effective way for HPT BTRRC dynamic probabilistic design and provides also a promising method for the further probabilistic optimal design of complex mechanical system.

scholarly journals Dynamic Procurement under Uncertainty: Optimal Design and Implications for Incomplete Contracts

2016 ◽  
Vol 106 (11) ◽  
pp. 3238-3274 ◽  
Author(s):  
Malin Arve ◽  
David Martimort
Keyword(s):  
Optimal Design ◽  
Risk Aversion ◽  
Incomplete Contracts ◽  
Information Revelation ◽  
Firm Risk ◽  
Basic Service ◽  
Dynamic Contract ◽  
Risk Effect ◽  
Optimal Dynamic

We characterize the optimal dynamic contract for a long-term basic service when an uncertain add-on is required later on. Introducing firm risk aversion has two impacts. Profits for the basic service can be backloaded to induce cheaper information revelation for this service: an Income Effect which reduces output distortions. The firm must also bear some risk to induce information revelation for the add-on. This Risk Effect reduces the level of the add-on but hardens information revelation for the basic service. The interaction between these effects has important implications for the dynamics of distortions, contract renegotiation, and the value of incomplete contracts. (JEL D47, D81, D86)

Optimal Design for Biodiesel Supply Chain: Case Study

2021 ◽  
Author(s):  
Fitriani Tupa R Silalahi ◽  
Togar M. Simatupang ◽  
Manahan Siallagan
Keyword(s):  
Supply Chain ◽  
Renewable Energy ◽  
Optimal Design ◽  
Chain Process ◽  
Supply Chain Costs ◽  
Decision Variables ◽  
Supply Chain Process ◽  
Do So

One renewable energy form currently being promoted is that of biodiesel as a substitute for diesel fuel. This involves mixing biodiesel with petrodiesel in proportions governed by the respective regulations of each country. The purposes of this research are to support the exploiting of biodiesel forms of renewable energy and to optimize the palm oil-sourced biodiesel supply chain by conducting an Indonesia-based case study. The optimization process was implemented in accordance with the government's mandate and long-term planning. There are two decision variables to consider. First, the model will identify the optimum delivery point locations as a blending terminal between biodiesel and petrodiesel (petroleum diesel). Second, it will determine the location of biodiesel plants’ construction in order to satisfy the government's mandate. The results show that, while determining delivery point locations affects supply chain costs, it does not do so significantly. More influential is determining the construction locations of biodiesel plants and this study provides a model for deciding the delivery points and locations of biodiesel plants in order to minimize biodiesel supply chain costs in Indonesia. This study presents in detail biodiesel supply chain process in Indonesia and based on the literature, no research was found on studying optimization biodiesel supply chain in Indonesia.  

MEMS resonant load cells for micro-mechanical test frames: feasibility study and optimal design

2010 ◽  
Vol 20 (12) ◽  
pp. 125004 ◽  
Author(s):  
A Torrents ◽  
K Azgin ◽  
S W Godfrey ◽  
E S Topalli ◽  
T Akin ◽  
...  
Keyword(s):  
Optimal Design ◽  
Feasibility Study ◽  
Mechanical Test ◽  
Load Cells

Optimal design for long-term stable area-coverage satellite group orbit

2020 ◽  
Author(s):  
Benchang Zheng ◽  
Jinlei Ren ◽  
Zhenya Wang ◽  
Jun Li ◽  
Hu Huang ◽  
...  
Keyword(s):  
Optimal Design ◽  
Area Coverage ◽  
Group Orbit ◽  
Stable Area

scholarly journals Urgently Needed: Climate Lawyers

Climate Law ◽  
2018 ◽  
Vol 8 (3-4) ◽  
pp. 161-171
Author(s):  
Michael Faure ◽  
Jing Liu
Keyword(s):  
Climate Change ◽  
Optimal Design ◽  
Greenhouse Gases ◽  
Environmental Law ◽  
Paris Agreement ◽  
Long Term Effects ◽  
Adaptation To Climate Change ◽  
International Policy ◽  
Policy Arena

We argue that climate law has specific features—including scientific complexity, a strongly transboundary nature, and long-term effects—that make it more challenging to study than other more traditional domains of environmental law. As a consequence, an interdisciplinary perspective may be needed even more for climate law than for the traditional study of environmental law. Climate law is to some extent underestimated by scientists, who should realize that for effective mitigation of greenhouse gases and adaptation to climate change, an optimal design and enforcement through climate law is necessary. Climate law can be expected to become more important with the implementation of the Paris Agreement, and for that reason climate lawyers should receive a more prominent position in the international policy arena of climate change.

scholarly journals On the Mechanical Friction Losses Occurring in Automotive Differential Gearboxes

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Grégory Antoni
Keyword(s):  
Mechanical System ◽  
Automobile Industry ◽  
Sharp Increase ◽  
Analytical Approach ◽  
Surface Damage ◽  
Worst Case ◽  
Local Loss ◽  
Mechanical Assemblies ◽  
Mechanical Elements

In the automobile industry, the mechanical losses resulting from friction are largely responsible for various kinds of surface damage, such as the scuffing occurring in some mechanical assemblies. These scuffing processes seem to be due to a local loss of lubrication between certain mechanical elements of the same assembly, leading to a sharp increase in the friction, which can lead to a surface and volume damage in some of them, and even can cause, in the worst case, the whole destruction of the mechanical system if it has continued to operate. Predicting and checking the occurrence of this kind of undesirable phenomena, especially in some principal systems of the vehicle, represents nowadays, a crucial challenge in terms of automobile reliability and safety. This study focuses on the mechanical friction losses liable to occur in differential automobile gearboxes, which can lead in the long term to the scuffing of these mechanical systems. The friction losses involved were modeled, using a simple analytical approach, which is presented and discussed.

Sign in / Sign up

Export Citation Format

Share Document