gyroscopyГироскопия и навигацияGiroskopiya i Navigatsiya / Gyroscopy and Navigation0869-70352075-0927AO «Концерн «ЦНИИ «Электроприбор»FVHXVNgyroscopy-5Research ArticleСтатьиЭффективное терморегулирование МЭМС-гироскопа на базе вращающегося диска при помощи водного нанораствора ZrO2 и модификации поверхностиEffective Thermal Management of a MEMS Rotating Disk Gyroscope Utilizing ZrO2-Water Nanofluids and Surface Modifications for Consumer ElectronicsБхатГ. Ш.BhatG. Sh.

Бхат Гаухар Шафи. Лаборатория исследований турбулентности, факультет машиностроения

Шринагар

Turbulence Research Laboratory, Department of Mechanical Engineering 

Hazratbal Srinagar, J&K

КаюмА.QayoumA.

Каюм Аднан. Профессор, Лаборатория исследований турбулентности, факультет машиностроения

Шринагар

Turbulence Research Laboratory, Department of Mechanical Engineering 

Hazratbal Srinagar, J&K

СалимШ. Ш.SaleemSh. Sh.

Салим Шейх Шахид. Доктор наук Лаборатория высокотемпературной трибологии, факультет машиностроения

Шринагар

High-Temperature Tribology Laboratory, Department of Mechanical Engineering

Hazratbal Srinagar, J&K

Государственный технический университетИндияNational Institute of Technology SrinagarIndia2024160520253233146Copyright © Бхат Г.Ш., Каюм А., Салим Ш.Ш., 20252025Бхат Г.Ш., Каюм А., Салим Ш.Ш.Bhat G.S., Qayoum A., Saleem S.S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.gyroscopy.ru/jour/article/view/5

МЭМС-гироскопы на базе вращающегося диска (МГВД) были разработаны для замены вибрационных гироскопов в электронных устройствах массового потребления. МГВД обладают высокой точностью, стабильностью и широким динамическим диапазоном при измерении параметров движения, стабилизации изображений и т.д. Вместе с тем для повышения их эксплуатационных характеристик и надежности, а также с целью уменьшить габариты, что обеспечит им конкурентные преимущества, необходимо их эффективное терморегулирование. Это остается актуальной проблемой, особенно при высоких тепловых нагрузках. Для улучшения тепловых характеристик МГВД рассматривается возможность применения наножидкостей, в частности водного раствора наночастиц диоксида циркония ZrO2 пяти концентраций – 0,2%, 0,4%, 0,6%, 0,8% и 1%. Исследования проводились при пяти скоростях вращения. Дополнительно анализировалось влияние на теплоотдачу различных уровней шероховатости поверхности диска – 0,025, 0,05 и 0,1 (в безразмерной форме) и скоростей вращения и концентрации наночастиц. Согласно наблюдениям, наночастицы повышают теплоотдачу. При угловой скорости 1000 рад/с и концентрации наночастиц 1% максимальное повышение теплоотдачи составило примерно 27%. Шероховатость поверхности вне зависимости от ее уровня оказывает минимальное влияние: теплоотдача возросла всего на 0,31%. Различные показатели эффективности прибора представлены графически. Результаты настоящего исследования могут быть полезны для улучшения тепловых характеристик МГВД за счет применения наножидкостей и соответствующих угловых скоростей при высоких тепловых нагрузках – до 500 Вт/см2 . Перечисленные методы способствуют миниатюризации компонентов и обеспечивают их конкурентоспособность на рынке электронных устройств широкого потребления.

Micro rotating disk gyroscopes (μRDGs) have emerged as a contender for replacing vibratory gyroscopes as crucial components in consumer electronics due to their high accuracy, precision, stability and wide dynamic range in motion sensing, image stabilisation, etc. However, effective thermal management remains a challenge in maximising their performance and reliability, especially at high heat loads, thus helping downsize μRDGs and enabling them as a potential component in consumer electronics. This study investigates the potential of using nanofluids for thermal performance enhancement of μRDGs. The research examines Zirconium dioxide nanoparticles dispersed in water as the base fluid. Five concentrations of ZrO2 nanoparticles – 0.2%, 0.4%, 0.6%, 0.8% and 1% – have been investigated. Moreover, the study incorporates five varying rotational speeds across all five concentrations. Additionally, surface roughness values of 0.025, 0.05 and 0.1, represented in dimensionless form, are examined in conjunction with the ensuing speeds and concentrations of nanoparticles. The utilisation of nanoparticles is observed to enhance the heat dissipation capability. Notably, at an angular velocity of 1000 rad/s and a nanoparticle concentration of 1%, the maximum enhancement in heat dissipation reaches approximately 27%. Surface roughness demonstrates minimal impact regardless of its values, with a maximum heat dissipation increase of 0.31%. Additionally, graphical representations of various performance indices are provided. The findings of this research indicate promising prospects for improving the thermal performance of μRDGs by utilising nanofluids in conjunction with angular speeds at high heat loads of 500 W/cm2, thus helping in the miniaturisation of these components for viable use in consumer electronics.

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The authors declare that there are no conflicts of interest present.