Machine Learning for the Performance Assessment of High-Speed Links

This study proposes a new high-speed method for designing crystal growth systems. It is capable of optimizing large numbers of parameters simultaneously which is difficult for traditional experimental and computational techniques.

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Machine Learning Cutting Force, Surface Roughness, and Tool Life in High Speed Turning Processes

Manufacturing Letters ◽

10.1016/j.mfglet.2021.07.005 ◽

2021 ◽

Author(s):

Yun Zhang ◽

Xiaojie Xu

Keyword(s):

Machine Learning ◽

Surface Roughness ◽

Cutting Force ◽

Tool Life ◽

High Speed ◽

High Speed Turning

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Nanoprinted high-neuron-density optical linear perceptrons performing near-infrared inference on a CMOS chip

Light Science & Applications ◽

10.1038/s41377-021-00483-z ◽

2021 ◽

Vol 10 (1) ◽

Author(s):

Elena Goi ◽

Xi Chen ◽

Qiming Zhang ◽

Benjamin P. Cumming ◽

Steffen Schoenhardt ◽

...

Keyword(s):

Machine Learning ◽

High Speed ◽

Near Infrared ◽

Single Layer ◽

Infrared Region ◽

Optical Devices ◽

Medical Diagnostics ◽

Oxide Semiconductor ◽

Process Data ◽

Neuron Density

AbstractOptical machine learning has emerged as an important research area that, by leveraging the advantages inherent to optical signals, such as parallelism and high speed, paves the way for a future where optical hardware can process data at the speed of light. In this work, we present such optical devices for data processing in the form of single-layer nanoscale holographic perceptrons trained to perform optical inference tasks. We experimentally show the functionality of these passive optical devices in the example of decryptors trained to perform optical inference of single or whole classes of keys through symmetric and asymmetric decryption. The decryptors, designed for operation in the near-infrared region, are nanoprinted on complementary metal-oxide–semiconductor chips by galvo-dithered two-photon nanolithography with axial nanostepping of 10 nm1,2, achieving a neuron density of >500 million neurons per square centimetre. This power-efficient commixture of machine learning and on-chip integration may have a transformative impact on optical decryption3, sensing4, medical diagnostics5 and computing6,7.

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Machine Learning Acoustic Emission Based Monitoring of Cold Forging for Smart Manufacturing: A Review

10.51626/ijeti.2021.02.00017 ◽

2021 ◽

Vol 2 (3) ◽

Keyword(s):

Machine Learning ◽

Acoustic Emission ◽

Product Quality ◽

High Speed ◽

High Rate ◽

Cold Forging ◽

Smart Manufacturing ◽

Forming Process ◽

Cold Forming ◽

Effective Manner

Cold forging is a high-speed forming technique used to shape metals at near room temperature. and it allows high-rate production of high strength metal-based products in a consistent and cost-effective manner. However, cold forming processes are characterized by complex material deformation dynamics which makes product quality control difficult to achieve. There is no well defined mathematical model that governs the interactions between a cold forming process, material properties, and final product quality. The goal of this work is to provide a review for the state of research in the field of using acoustic emission (AE) technology in monitoring cold forging process. The integration of AE with machine learning (ML) algorithms to monitor the quality is also reviewed and discussed. It is realized that this promising technology didn’t receive the deserving attention for its implementation in cold forging and that more work is needed.

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Optimization of Joint Equalization of High-Speed Signals using Bayesian Machine Learning

10.1109/emc/si/pi/emceurope52599.2021.9559157 ◽

2021 ◽

Author(s):

N. Dikhaminjia ◽

G. Tsintsadze ◽

Z. Kiguradze ◽

J. He ◽

M. Tsiklauri ◽

...

Keyword(s):

Machine Learning ◽

High Speed ◽

Bayesian Machine Learning

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Vibration-Based Early Crack Diagnosis With Machine Learning for Spur Gears

Volume 7B: Dynamics, Vibration, and Control ◽

10.1115/imece2020-24006 ◽

2020 ◽

Author(s):

Fatih Karpat ◽

Ahmet Emir Dirik ◽

Onur Can Kalay ◽

Oğuz Doğan ◽

Burak Korcuklu

Keyword(s):

Machine Learning ◽

Fault Diagnosis ◽

High Speed ◽

Crack Detection ◽

Power Transmission ◽

Calculated Data ◽

Design Parameters ◽

Tooth Stiffness ◽

Vibration Responses ◽

Root Crack

Abstract Gear mechanisms are one of the most significant components of the power transmission systems. Due to increasing emphasis on the high-speed, longer working life, high torques, etc. cracks may be observed on the gear surface. Recently, Machine Learning (ML) algorithms have started to be used frequently in fault diagnosis with developing technology. The aim of this study is to determine the gear root crack and its degree with vibration-based diagnostics approach using ML algorithms. To perform early crack detection, the single tooth stiffness and the mesh stiffness calculated via ANSYS for both healthy and faulty (25-50-75-100%) teeth. The calculated data transferred to the 6-DOF dynamic model of a one-stage gearbox, and vibration responses was collected. The data gathered for healthy and faulty cases were evaluated for the feature extraction with five statistical indicators. Besides, white Gaussian noise was added to the data obtained from the 6-DOF model, and it was aimed at early fault diagnosis and condition monitoring with ML algorithms. In this study, the gear root crack and its degree analyzed for both healthy and four different crack sizes (25%-50%-75%-100%) for the gear crack detection. Thereby, a method was presented for early fault diagnosis without the need for a big experimental dataset. The proposed vibration-based approach can eliminate the high test rig construction costs and can potentially be used for the evaluation of different working conditions and gear design parameters. Therefore, catastrophic failures can be prevented, and maintenance costs can be optimized by early crack detection.

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