Results 11 to 20 of about 513,577 (266)

A concurrent optimization model for suppliers selection, tolerance and component allocation with fuzzy quality loss

open access: yesCogent Engineering, 2016
The aim of this paper is to develop an optimization model to optimally select suppliers and allocate components to the selected suppliers. The objectibve function of the model is to minimize purchasing cost and fuzzy quality loss.
Cucuk Nur Rosyidi   +2 more
doaj   +1 more source

A study on tolerances design of parallel link robots based on mathematical models

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
Parallel link robots are now being applied to various assembling tasks for small products and components. One of the important issues for design of the parallel link robots is to improve their kinematic motion deviations due to the complex link ...
Ryo TAKEMATSU   +4 more
doaj   +1 more source

Fault tolerant design for autonomous vehicle [PDF]

open access: yes2017 4th International Conference on Control, Decision and Information Technologies (CoDIT), 2017
A fault-tolerant control design strategy based upon sliding mode control and a descriptor observer for Upschitz system is presented. The aim is to mitigate the vehicle speed faults and provide accurate measurements for the control. Thus, the additive faults affecting the vehicle speed sensor are estimated, and accurate speed measurments are used to ...
Boukhari, Mohamed Riad   +3 more
openaire   +3 more sources

Tolerance analysis method considering multifactor coupling based on the Jacobian–torsor model

open access: yesAdvances in Mechanical Engineering, 2022
Assembly quality affects the performance of mechanical products and reasonable tolerance designs are central to assembly quality. Unreasonable tolerance design leads to the mechanical equipment performance degradation under complex operating conditions ...
Zhaohui Yang   +3 more
doaj   +1 more source

A study on tolerance design of machine tool components based on shape generation motions (Theoretical analysis considering rotational table positions)

open access: yesNihon Kikai Gakkai ronbunshu, 2017
The kinematic motion deviations of the five-axis machining centers are deeply influenced by the geometric deviations of the components, such as guide-ways and bearings.
Naoki SATONAKA   +4 more
doaj   +1 more source

3D SOI edge coupler design for high tolerance

open access: yesAIP Advances, 2023
We designed and manufactured two single-mode fiber-to-chip three-dimensional (3D) edge couplers with taper and semi-cone structures on a 3.5 µm silicon device layer of a silicon-on-insulator.
Shengtao Yu, Xiaoyu Li, Chengqun Gui
doaj   +1 more source

Tolerance of Design Faults

open access: yes, 2011
The idea that diverse or dissimilar computations could be used to detect errors can be traced back to Dynosius Lardner's analysis of Babbage's mechanical computers in the early 19th century. In the modern era of electronic computers, diverse redundancy techniques were pioneered in the 1970's by Elmendorf, Randell, Avi˘zienis and Chen.
Powell, David   +3 more
openaire   +2 more sources

A study on tolerance design of machine tool components based on shape generation motions

open access: yesNihon Kikai Gakkai ronbunshu, 2016
The kinematic motion deviations of the five-axis machining centers are deeply influenced by the geometric deviations of the components, such as guide-ways and bearings.
Ryo TAKEMATSU   +5 more
doaj   +1 more source

Fault-tolerance Design and Validation of Power Converter [PDF]

open access: yesJisuanji gongcheng, 2017
In order to improve the reliability of the Switch Reluctance Generation(SRG)system,several common failures of power converter are analyzed.Combined with the superiority of the independence of asymmetrical bridge power converter,a kind of fault-tolerant ...
ZHOU Zheng,LIU Yongzhi,SONG Jinlong,MA Weimin,WANG Zhenliang
doaj   +1 more source

Fault tolerant mechanism design

open access: yesArtificial Intelligence, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ryan Porter   +3 more
openaire   +2 more sources

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