2,946 Hits in 6.6 sec

Performance Margin Modeling and Reliability Analysis for Harmonic Reducer Considering Multi-Source Uncertainties and Wear

Yun Li, Bang-An Tong, Wen-Bin Chen, Xiao-Yang Li, Jia-Bo Zhang, Guo-Xin Wang, Ting Zeng
2020 IEEE Access  
In this paper, a performance margin modeling and reliability analysis for harmonic reducer considering multi-source uncertainties and wear is proposed.  ...  INDEX TERMS Performance margin, Reliability, Harmonic reducer, Uncertainty quantification, Wear NOTATION B Hysteresis error of the harmonic reducer m Module of the gear G Z Number of the Circular Spline  ...  Margin Modeling and Reliability Analysis for Harmonic Reducer Considering Multi-Source Uncertainties and Wear 3  ... 
doi:10.1109/access.2020.3023543 fatcat:nutkvhyzdjdqhhszrscpli4n5a

Belief reliability modeling and analysis for planetary reducer considering multi-source uncertainties and wear

Li Yun, Jiang Kaige, Zeng Ting, Chen Wenbin, Li Xiaoyang, Li Deyong, Zhang Zhiqiang
2021 Journal of Systems Engineering and Electronics  
In this paper, belief reliability modeling and analysis considering multi-uncertainties and wear are proposed for planetary reducers.  ...  After that, multi-source uncertainties are analyzed and quantified separately, including manufacturing errors, uncertainties in operational and environmental conditions, and uncertainties in performance  ...  Vol. 32, No. 5, October 2021 LI Yun et al.: Belief reliability modeling and analysis for planetary reducer considering multi-source uncertainties and wear  ... 
doi:10.23919/jsee.2021.000106 fatcat:zocyvvgd7jbq7h7vujbbfexadm

Wear-out Failure Analysis of an Impedance-Source PV Microinverter Based on System-Level Electro-Thermal Modeling

Yanfeng Shen, Andrii Chub, Huai Wang, Dmitri Vinnikov, Elizaveta Liivik, Frede Blaabjerg
2018 IEEE transactions on industrial electronics (1982. Print)  
Finally, the multi-mode control with a variable dclink voltage is proposed, and a more reliable dc-link electrolytic capacitor is employed, which results in a remarkable reliability improvement for the  ...  The wear-out performance of an impedancesource photovoltaic (PV) microinverter (MI) is evaluated and improved based on two different mission profiles.  ...  ACKNOWLEDGMENT The authors would like to thank Ubik Solutions LLC for the support of this research.  ... 
doi:10.1109/tie.2018.2831643 fatcat:qlodrcyhorddtkkbuy6nvcw7gq

Review of condition monitoring and fault diagnosis for marine power systems

Xiaojian Xu, Xinping Yan, Kun Yang, Jiangbin Zhao, Chenxing Sheng, Chengqing Yuan
2021 Transportation Safety and Environment  
Finally, prospective research directions are proposed for CMFD in marine power systems, considering the research status of CMFD and the trend toward intelligent and eco-friendly ships.  ...  This study divides the development of CMFD for marine power systems into three periods and reviews the content, state and limitations of CMFD research for each period.  ...  Acknowledgements We acknowledge financial support from the NSFC-Zhejiang Joint Fund for the Integration of Industrialization and Informatization (grant no.  ... 
doi:10.1093/tse/tdab005 fatcat:jv27b5a3zvbupa6jxdn7vf2ka4

Friction-Induced Noise and Vibrations: Diagnosis and Prognosis

Gang Chen
2013 Advances in Automobile Engineering  
removal; uncertainty such as interface wear; combinations and interaction of varied mechanisms.  ...  A quietness margin for robust design is usually not found experimentally.  ... 
doi:10.4172/2167-7670.1000e118 fatcat:vhfzjcw5nbesrjgkhuqg6eux5i

Electrical and Electronic Technologies in More-Electric Aircraft: A Review

Kai Ni, Yongjiang Liu, Zhanbo Mei, Tianhao Wu, Yihua Hu, Huiqing Wen, Yangang Wang
2019 IEEE Access  
In terms of machine technologies, power electronics techniques, energy management strategies, and the system stability and reliability, a review is carried out for the contributions in the literature to  ...  The design and control methods for electrical machines and various topologies and control strategies for power electronic converters have been widely researched.  ...  Besides, the modeling and impedance analysis of a droop-controlled single DC bus based multi-source EPDS for MEA were investigated in [100] .  ... 
doi:10.1109/access.2019.2921622 fatcat:yhseufz2wnfm3oehfnq7673sim

Grid-Friendly High-Reliability Photovoltaic Systems [article]

Ariya Sangwongwanich
2018 The PhD Series of the Faculty of Engineering and Science  
For the PV applications, the operation and performance of the PV inverter are also dependent on the PV array characteristics, which are considered as another source of uncertainties in the reliability  ...  In that case, the performance of different control strategies can be clearly compared. Regarding the reliability analysis, only the wear-out failure mechanism is considered in this study.  ... 
doi:10.5278/ fatcat:uk5sd4t625aonhofr3najxygnq

Impact of Component Reliability on Large Scale Photovoltaic Systems' Performance

Stefan Baschel, Elena Koubli, Jyotirmoy Roy, Ralph Gottschalg
2018 Energies  
Reliability and Availability Modelling This section summarises the different concepts used for the assessment of performance risks of LSPVS.  ...  A Fault Tree Analysis (FTA) is used to estimate the impact on reliability and availability for two inverter configurations.  ...  FTA and FMEA (failure modes and effects analysis) are used here to model risk in terms of reliability.  ... 
doi:10.3390/en11061579 fatcat:5hlgjbfcszb57ihdppthpeekqq

Reliability of Capacitors for DC-Link Applications in Power Electronic Converters—An Overview

Huai Wang, Frede Blaabjerg
2014 IEEE transactions on industry applications  
Failure mechanisms, failure modes and lifetime models of capacitors suitable for the applications are also discussed as a basis to understand the physics-of-failure.  ...  This review serves to provide a clear picture of the state-of-the-art research in this area and to identify the corresponding challenges and future research directions for capacitors and their dc-link  ...  and more realistic lifetime design and prediction. g) Robustness analysis and optimization: The final steps of the design procedure are the design margin (i.e., robustness) analysis [49] and multi-objective  ... 
doi:10.1109/tia.2014.2308357 fatcat:to2qm7odencitpmycop4xq3zle

A framework for occupancy detection and tracking using floor-vibration signals

Slah Drira, Ian F.C. Smith
2022 Mechanical systems and signal processing  
Up to two occupants can be tracked by accommodating systematic bias and uncertainties from sources such as modeling assumptions and variability in walking gaits.  ...  A hybrid framework for occupant detection and tracking that combines model-free approaches for occupancy detection with structural behavior models for tracking is developed and tested on two fullscale  ...  The authors also acknowledge Tectus Dreamlab Pte Ltd and BBR Holdings Singapore for access and resources provided for full-scale evaluations of strategies that are described in this paper.  ... 
doi:10.1016/j.ymssp.2021.108472 fatcat:rlcdkzgxxnhslf2qpfgheyslsa

Digitalisation of maintenance

Erkki Jantunen, Jaime Campos, Pankaj Sharma, David Baglee
2017 2017 2nd International Conference on System Reliability and Safety (ICSRS)  
For your personal and property safety, delegates are suggested to wear representative card during conference and not to lend it to those unconcerned to enter event rooms.  ...  For health consideration, please wash hands before meals and please use serving chopsticks and serving spoon during meals. ♣ Please take care of your belongings in public area.  ...  In this paper, based on reliability science principles, a reliability model considering performance degradation and multi-source uncertainties is established for three-grid ion thrusters.  ... 
doi:10.1109/icsrs.2017.8272846 fatcat:p2dgn3wgkzdsna4cbqrqckbxnm

Tolerancing: Managing uncertainty from conceptual design to final product

Edward Morse, Jean-Yves Dantan, Nabil Anwer, Rikard Söderberg, Giovanni Moroni, Ahmed Qureshi, Xiangqian Jiang, Luc Mathieu
2018 CIRP annals  
is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible.  ...  Acknowledgements The authors would like to thank the following individuals for their contributions to this work: Y. Cao (Zhejiang), J. Erkoyuncu  ...  Quantification of Margins and Uncertainty (QMU) [225, 226] focuses on the identification and analysis of performances and their margins that are evaluated under uncertainties using computational modelling  ... 
doi:10.1016/j.cirp.2018.05.009 fatcat:hmcrajqpozarzjpyvdcxfffefu

Free-Piston Stirling Engine Generators [chapter]

Songgang Qiu, Laura Solomon
2019 Energy Conversion - Current Technologies and Future Trends  
The lack of manual linages and the use of clearance seals in a FPSE increase both the system's reliability and lifespan, as there is no contact or wear on the seals.  ...  The general engineering analysis and numerical modeling approaches of Stirling engines will be discussed, followed by a section of engine design and efficiency calculations.  ...  Authors would like to express their appreciation to DOE ARPA-E for the financial support.  ... 
doi:10.5772/intechopen.79413 fatcat:k3zkomc4tvh5hatkjfivja54g4

Prediction Methods and Experimental Techniques for Chatter Avoidance in Turning Systems: A Review

Gorka Urbikain, Daniel Olvera, Luis Norberto López de Lacalle, Aitor Beranoagirre, Alex Elías-Zuñiga
2019 Applied Sciences  
There are different techniques and approaches to reduce and to avoid chatter effects.  ...  Amongst them, chatter vibrations are an old enemy for machinists with the most dramatic cases resulting in machine-tool failure, accelerated tool wear and tool breakage or part rejection due to unacceptable  ...  Luis Zabala from Kistler©, Endika Monge and Jon Méndez from Hoffmann© and Garikoitz Goikoetxea at the UPV/EHU, by their support and fruitful discussions during the years. Appl. Sci. 2019, 9, 4718  ... 
doi:10.3390/app9214718 fatcat:xsxehmoc6vek3eja4oxkmgi7oy

Life-Cycle Cost Evaluation Strategy for High-Performance Control Systems under Uncertainties

Laura Micheli, Liang Cao, Simon Laflamme, Alice Alipour
2019 Journal of engineering mechanics  
High-performance control systems (HPCSs), including active, hybrid, and semi-active control strategies, can perform over a wide excitation bandwidth and are therefore good candidates for multi-hazard mitigation  ...  Uncertainties under consideration include sensor failure, mechanical wear, and seismic events.  ...  For example, considering a variable friction damper, the device may experience cold weld and wear of the friction material, which will reduce damping performance, and excessive loading (e.g., displacement  ... 
doi:10.1061/(asce)em.1943-7889.0001711 fatcat:nop6q3bnsvccnc2alpnbf7g5xa
« Previous Showing results 1 — 15 out of 2,946 results