Slip and Magnetic Attraction Effects in a Microrobot with Magnetic-Wheels and Skid-Steering

This study investigated slip and magnetic attraction effects in a skid-steered magnetic-wheeled microrobot. The dynamics of the microrobot were derived by considering the slip and magnetic attraction of the wheels. In addition, the slip characteristics of the magnetic wheels were measured using an e...

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Main Authors: Munehisa Takeda, Isao Shimoyama
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/10/6/379
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author Munehisa Takeda
Isao Shimoyama
author_facet Munehisa Takeda
Isao Shimoyama
author_sort Munehisa Takeda
collection DOAJ
description This study investigated slip and magnetic attraction effects in a skid-steered magnetic-wheeled microrobot. The dynamics of the microrobot were derived by considering the slip and magnetic attraction of the wheels. In addition, the slip characteristics of the magnetic wheels were measured using an evaluation apparatus built for this purpose. A simulation program for driving performance was developed as well. Simulations indicated that the turning characteristics of the skid-steered wheeled microrobot degrade because the gripping force decreases due to the decrease in weight with decreasing size. However, the turning characteristics of a skid-steered microrobot can be improved with the magnetic attraction of magnetic wheels. A 5 mm × 9 mm × 6.5 mm skid-steered microrobot with four magnetic wheels was fabricated, and the measured performance was consistent with the simulation results. The differences in driving performance were clarified between a microrobot with column-type magnetic wheels and one with barrel-type magnetic wheels, as well as between forward and backward motion.
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spelling doaj.art-306618f8ca0440fbbb901b204285d6532022-12-21T18:55:08ZengMDPI AGMicromachines2072-666X2019-06-0110637910.3390/mi10060379mi10060379Slip and Magnetic Attraction Effects in a Microrobot with Magnetic-Wheels and Skid-SteeringMunehisa Takeda0Isao Shimoyama1MEMS System Development Center, Micromachine Center, Tokyo 101-0026, JapanToyama Prefectural University, Imizu 939-0398, JapanThis study investigated slip and magnetic attraction effects in a skid-steered magnetic-wheeled microrobot. The dynamics of the microrobot were derived by considering the slip and magnetic attraction of the wheels. In addition, the slip characteristics of the magnetic wheels were measured using an evaluation apparatus built for this purpose. A simulation program for driving performance was developed as well. Simulations indicated that the turning characteristics of the skid-steered wheeled microrobot degrade because the gripping force decreases due to the decrease in weight with decreasing size. However, the turning characteristics of a skid-steered microrobot can be improved with the magnetic attraction of magnetic wheels. A 5 mm × 9 mm × 6.5 mm skid-steered microrobot with four magnetic wheels was fabricated, and the measured performance was consistent with the simulation results. The differences in driving performance were clarified between a microrobot with column-type magnetic wheels and one with barrel-type magnetic wheels, as well as between forward and backward motion.https://www.mdpi.com/2072-666X/10/6/379microrobotmagnetic wheelslipmagnetic attractionturning characteristicsskid-steered
spellingShingle Munehisa Takeda
Isao Shimoyama
Slip and Magnetic Attraction Effects in a Microrobot with Magnetic-Wheels and Skid-Steering
Micromachines
microrobot
magnetic wheel
slip
magnetic attraction
turning characteristics
skid-steered
title Slip and Magnetic Attraction Effects in a Microrobot with Magnetic-Wheels and Skid-Steering
title_full Slip and Magnetic Attraction Effects in a Microrobot with Magnetic-Wheels and Skid-Steering
title_fullStr Slip and Magnetic Attraction Effects in a Microrobot with Magnetic-Wheels and Skid-Steering
title_full_unstemmed Slip and Magnetic Attraction Effects in a Microrobot with Magnetic-Wheels and Skid-Steering
title_short Slip and Magnetic Attraction Effects in a Microrobot with Magnetic-Wheels and Skid-Steering
title_sort slip and magnetic attraction effects in a microrobot with magnetic wheels and skid steering
topic microrobot
magnetic wheel
slip
magnetic attraction
turning characteristics
skid-steered
url https://www.mdpi.com/2072-666X/10/6/379
work_keys_str_mv AT munehisatakeda slipandmagneticattractioneffectsinamicrorobotwithmagneticwheelsandskidsteering
AT isaoshimoyama slipandmagneticattractioneffectsinamicrorobotwithmagneticwheelsandskidsteering