scholarly journals Manufacturing data-driven process adaptive design method

Procedia CIRP ◽  
2020 ◽  
Vol 91 ◽  
pp. 728-734
Author(s):  
Wei Wei ◽  
Jun Yuan ◽  
Ang Liu
2021 ◽  
pp. 739-746
Author(s):  
Xiaoming Xie ◽  
Tengfei Zhang ◽  
Qingyu Zhu ◽  
Guigang Zhang

2017 ◽  
Vol 12 ◽  
pp. S74-S81 ◽  
Author(s):  
Masami Saeki ◽  
Koki Hinokimoto ◽  
Nobutaka Wada ◽  
Satoshi Satoh

Author(s):  
Akshay Bharadwaj ◽  
Yang Xu ◽  
Atin Angrish ◽  
Yong Chen ◽  
Binil Starly

Abstract Data driven advanced manufacturing research is dependent on access to large datasets made available from across the product lifecycle — from the concept design phase all the way down to end use and disposal. Despite such data being generated at a rapid pace, most product design data is archived in inaccessible silos. This is particularly acute in academic research laboratories and with data generated during product design and manufacturing courses. This project seeks to create an infrastructure that allow users (academia and the general public) to easily upload project data and related meta-data. Current manufacturing research must shift from siloed repositories of product manufacturing data to a federated, decentralized, open and inter-operable approach. In this regard, we build ‘FabWave’ a cyber-infrastructure tool designed to capture manufacturing data. In its first pilot implementation, we focused our attention to gathering information rich 3D Mechanical CAD data and related meta-data associated with them, with the intent to make it easier for users to upload and access product design data. We describe workflows that we have initially tested out within the two academic universities and under two different course structures. We have also developed automated workflows to gather license appropriate CAD assemblies from commercial repositories. Our intent is to create the only known largest available CAD model set within academia for enabling research in data-driven computational research in digital design, fabrication and quality control.


Author(s):  
JAY J. LEE ◽  
JAHWAN KIM ◽  
JIN H. KIM

Although HMM is widely used for online handwriting recognition, there is no simple and well-established method of designing the HMM topology. We propose a data-driven systematic method to design HMM topology. Data samples in a single pattern class are structurally simplified into a sequence of straight-line segments, and then these simplified representations of the samples are clustered. An HMM is constructed for each of these clusters, by assigning a state to each straight-line segments. Then the resulting multiple models of the class are combined to form an architecture of a multiple parallel-path HMM, which behaves as a single HMM. To avoid excessive growing of the number of the states, parameter tying is applied such that structural similarity among patterns is reflected. Experiments on online Hangul recognition showed about 19% of error reductions, compared to the intuitive design method.


2015 ◽  
Vol 16 (5) ◽  
pp. 387-394 ◽  
Author(s):  
Xun Gong ◽  
Yi-xiong Feng ◽  
Zi-wu Ren ◽  
Jin Cheng ◽  
Jian-rong Tan

1998 ◽  
Vol 124 (1) ◽  
pp. 231-234 ◽  
Author(s):  
Hongliu Du ◽  
Satish S. Nair

A robust adaptive design method is proposed for the on-line compensation of uncertainties, for a class of nonlinear systems. As an extension of previous work, the adaptive part of the control law uses a constructive Gaussian network without any prior training, and the control law provides robustness using a systematically designed sliding mode term. In the design, learning and control bounds are guaranteed by properly constructing the control architecture using the proposed methods. The robust adaptive control strategy, with the proposed design guidelines, has been validated using a hardware example case of a nonlinear robotic linkage system. Experiments have shown that the inclusion of the proposed stable learning and robust terms into the control design, using the proposed constructive methods, results in improved system performance for the example case system.


2018 ◽  
Vol 175 ◽  
pp. 03035
Author(s):  
Guangzhou Diao ◽  
Jing Rao ◽  
Jun Zhao

Focusing on the design of sub-assemble intelligent production line, an event-driven design method for production line was proposed. With the method, the manufacturing activity was defined as event, and then the relationships among events are analysed to define the input-output and execution behaviours digitally in each stage. Furthermore, the event-driven execution mechanism for multi-stage process was built to describe the production line in digital. The digital model of production line was conducted to explore the event behaviours, which will support the research about data-driven production line simulation in future work.


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