Fatigue Analysis of Actuators with Teflon Impregnated Coating—Challenges in Numerical Simulation

Actuators are essential components for motion in machines, and warranty service lives are basic specifications of actuators. However, fatigue damage or wear of actuators are very complex and related to many design factors, such as materials properties, surface conditions, loads, and operating temper...

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Main Authors: Zhuming Bi, Bongsu Kang, Puren Ouyang
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Actuators
Subjects:
Online Access:https://www.mdpi.com/2076-0825/10/4/82
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spelling doaj-0f2df2bfd5664b2fa3b44f4094d04ba12021-04-18T23:01:10ZengMDPI AGActuators2076-08252021-04-0110828210.3390/act10040082Fatigue Analysis of Actuators with Teflon Impregnated Coating—Challenges in Numerical SimulationZhuming Bi0Bongsu Kang1Puren Ouyang2Department of Civil and Mechanical Engineering, Purdue University Fort Wayne, Fort Wayne, IN 46805, USADepartment of Civil and Mechanical Engineering, Purdue University Fort Wayne, Fort Wayne, IN 46805, USADepartment of Aerospace Engineering, Ryerson University, Toronto, ON M5B 2K3, CanadaActuators are essential components for motion in machines, and warranty service lives are basic specifications of actuators. However, fatigue damage or wear of actuators are very complex and related to many design factors, such as materials properties, surface conditions, loads, and operating temperature. Actuator manufacturers still rely heavily on physical experiments to determine the fatigue lives of actuators. This paper investigates the state-of-the-art of using numerical simulations for fatigue analysis of mechanical actuators. Failure criteria of machine elements are discussed extensively; existing works on using finite element methods for machine element designs are examined to (1) explore the feasibility of using a numerical simulation for fatigue analysis and (2) discuss the technical challenges in practice. Moreover, a systematic procedure is suggested to predict fatigue lives of mechanical actuators with Teflon impregnated hard coatings. A virtual fatigue analysis allows for optimizing a mechanical structure, reducing design verification costs, and shortening the development time of actuators.https://www.mdpi.com/2076-0825/10/4/82actuatorsfatigue analysiswearsnumerical simulationfinite element analysisvirtual design
collection DOAJ
language English
format Article
sources DOAJ
author Zhuming Bi
Bongsu Kang
Puren Ouyang
spellingShingle Zhuming Bi
Bongsu Kang
Puren Ouyang
Fatigue Analysis of Actuators with Teflon Impregnated Coating—Challenges in Numerical Simulation
Actuators
actuators
fatigue analysis
wears
numerical simulation
finite element analysis
virtual design
author_facet Zhuming Bi
Bongsu Kang
Puren Ouyang
author_sort Zhuming Bi
title Fatigue Analysis of Actuators with Teflon Impregnated Coating—Challenges in Numerical Simulation
title_short Fatigue Analysis of Actuators with Teflon Impregnated Coating—Challenges in Numerical Simulation
title_full Fatigue Analysis of Actuators with Teflon Impregnated Coating—Challenges in Numerical Simulation
title_fullStr Fatigue Analysis of Actuators with Teflon Impregnated Coating—Challenges in Numerical Simulation
title_full_unstemmed Fatigue Analysis of Actuators with Teflon Impregnated Coating—Challenges in Numerical Simulation
title_sort fatigue analysis of actuators with teflon impregnated coating—challenges in numerical simulation
publisher MDPI AG
series Actuators
issn 2076-0825
publishDate 2021-04-01
description Actuators are essential components for motion in machines, and warranty service lives are basic specifications of actuators. However, fatigue damage or wear of actuators are very complex and related to many design factors, such as materials properties, surface conditions, loads, and operating temperature. Actuator manufacturers still rely heavily on physical experiments to determine the fatigue lives of actuators. This paper investigates the state-of-the-art of using numerical simulations for fatigue analysis of mechanical actuators. Failure criteria of machine elements are discussed extensively; existing works on using finite element methods for machine element designs are examined to (1) explore the feasibility of using a numerical simulation for fatigue analysis and (2) discuss the technical challenges in practice. Moreover, a systematic procedure is suggested to predict fatigue lives of mechanical actuators with Teflon impregnated hard coatings. A virtual fatigue analysis allows for optimizing a mechanical structure, reducing design verification costs, and shortening the development time of actuators.
topic actuators
fatigue analysis
wears
numerical simulation
finite element analysis
virtual design
url https://www.mdpi.com/2076-0825/10/4/82
work_keys_str_mv AT zhumingbi fatigueanalysisofactuatorswithteflonimpregnatedcoatingchallengesinnumericalsimulation
AT bongsukang fatigueanalysisofactuatorswithteflonimpregnatedcoatingchallengesinnumericalsimulation
AT purenouyang fatigueanalysisofactuatorswithteflonimpregnatedcoatingchallengesinnumericalsimulation
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