M3 Lab @ IIT Madras Department of Mechanical Engineering

Publications

Our published journal/conference papers and granted patents are tabulated below.

Highlighted

Predicting device-to-device frequency response function variation during high-volume manufacturing of a hardware device
Siddhesh Vivek Sakhalkar, Brandon Kaplan, Rasool Koosha, Hitoshi Shindo
Mechanical Systems and Signal Processing  ·  01 Apr 2024  ·  doi:10.1016/j.ymssp.2024.111202
Effect of Rheology and Slip on Lubricant Deformation and Disk-to-Head Transfer During Heat-Assisted Magnetic Recording (HAMR)
Siddhesh V. Sakhalkar, David B. Bogy
Tribology Letters  ·  25 Oct 2018  ·  doi:10.1007/s11249-018-1100-4
Investigation of heat transfer across a nanoscale air gap between a flying head and a rotating disk
S. Sakhalkar, Q. Cheng, A. Ghafari, D. Bogy
Journal of Applied Physics  ·  25 Aug 2020  ·  doi:10.1063/5.0012516

All

2025

Center structure having attachment support for an actuator in a multi-actuator hard disk drive
Jung-Seo Park, Thomas J. Hitchner, Robert McNab, Siddhesh Vivek Sakhalkar
US Patent 12230303B2  ·  18 Feb 2025  · 

2024

Extended center stiffener plate for improved structural dynamics of actuators in a multi-actuator hard disk drive
Jung-Seo Park, Siddhesh Vivek Sakhalkar, Arman V. Golgolab, Fred Golinveaux
US Patent 12176013B2  ·  24 Dec 2024  · 
Predicting device-to-device frequency response function variation during high-volume manufacturing of a hardware device
Siddhesh Vivek Sakhalkar, Brandon Kaplan, Rasool Koosha, Hitoshi Shindo
Mechanical Systems and Signal Processing  ·  01 Apr 2024  ·  doi:10.1016/j.ymssp.2024.111202
Anchoring structure for improved structural dynamics of actuators in a multi-actuator hard disk drive
Jung-Seo Park, Siddhesh Vivek Sakhalkar, Thomas J. Hitchner, Arman V. Golgolab
US Patent 11942121B2  ·  26 Mar 2024  · 

2023

Management of actuator dynamics in a multiple actuator hard disk drive with an unequal number of heads on the two outer arms of each actuator
Manoj Keshavan, Siddhesh Vivek Sakhalkar, Hitoshi Shindo
US Patent 11664047B2  ·  30 May 2023  · 

2022

Data storage device independently driving outer and inner fine actuators
Manoj Keshavan, Yanning Liu, Hitoshi Shindo, Siddhesh Vivek Sakhalkar
US Patent 11482254B2, China Patent 114944170B  ·  25 Oct 2022  · 
Direct measurement of disk-to-head back-heating in HAMR using a non-flying test stage
Qilong Cheng, Siddhesh V. Sakhalkar, David B. Bogy
Applied Physics Letters  ·  13 Jun 2022  ·  doi:10.1063/5.0092170

2020

Measurement of angstrom-level laser induced protrusion using touchdown in heat-assisted magnetic recording
Qilong Cheng, Haoyu Wang, Siddhesh V. Sakhalkar, David B. Bogy
Applied Physics Letters  ·  12 Oct 2020  ·  doi:10.1063/5.0029051
Investigation of heat transfer across a nanoscale air gap between a flying head and a rotating disk
S. Sakhalkar, Q. Cheng, A. Ghafari, D. Bogy
Journal of Applied Physics  ·  25 Aug 2020  ·  doi:10.1063/5.0012516
Numerical and Experimental Investigation of Nanoscale Heat Transfer Between a Flying Head Over a Rotating Disk
Siddhesh V. Sakhalkar, Qilong Cheng, David B. Bogy
ASME 2020 29th Conference on Information Storage and Processing Systems  ·  24 Jun 2020  ·  doi:10.1115/isps2020-1906
Experimental Study on Laser-Induced Protrusion in Heat-Assisted Magnetic Recording
Qilong Cheng, Haoyu Wang, Siddhesh V. Sakhalkar, David B. Bogy
ASME 2020 29th Conference on Information Storage and Processing Systems  ·  24 Jun 2020  ·  doi:10.1115/isps2020-1903
Dependence of nanoscale heat transfer across a closing gap on the substrate material and ambient humidity
Qilong Cheng, Siddhesh Sakhalkar, Amin Ghafari, Yuan Ma, David Bogy
Applied Physics Letters  ·  26 May 2020  ·  doi:10.1063/5.0010286

2019

Numerical and experimental investigation of heat transfer across a nanoscale gap between a magnetic recording head and various media
S. Sakhalkar, Q. Cheng, A. Ghafari, Y. Ma, D. Bogy
Applied Physics Letters  ·  25 Nov 2019  ·  doi:10.1063/1.5119721
Viscoelastic Lubricant Deformation and Disk-to-Head Transfer During Heat-Assisted Magnetic Recording
Siddhesh V. Sakhalkar, David B. Bogy
IEEE Transactions on Magnetics  ·  01 Jul 2019  ·  doi:10.1109/TMAG.2018.2885434
Numerical and Experimental Investigation of Nanoscale Heat Transfer in the Head-Media Interface During Static Touchdown
Siddhesh V. Sakhalkar, Qilong Cheng, Yuan Ma, Amin Ghafari, David B. Bogy
ASME 2019 28th Conference on Information Storage and Processing Systems  ·  27 Jun 2019  ·  doi:10.1115/isps2019-7448

2018

Effect of Rheology and Slip on Lubricant Deformation and Disk-to-Head Transfer During Heat-Assisted Magnetic Recording (HAMR)
Siddhesh V. Sakhalkar, David B. Bogy
Tribology Letters  ·  25 Oct 2018  ·  doi:10.1007/s11249-018-1100-4

2017

A Model for Lubricant Transfer from Media to Head During Heat-Assisted Magnetic Recording (HAMR) Writing
Siddhesh V. Sakhalkar, David B. Bogy
Tribology Letters  ·  13 Nov 2017  ·  doi:10.1007/s11249-017-0952-3