Authors:
Varinder Singh, Baltaeva Umida Ismoilovna
Addresses:
Department of Mechanical Engineering, Asra Group of Colleges, Patiala, Punjab, India. Department of Applied Mathematics and Mathematical Physics, Urgench State University, Urgench City, Khorezm Region, Uzbekistan.
Dynamic mechanical system lubrication remains the principal cause of component failure and low efficiency, and hence the source of increasing maintenance expense. Surface treatment, as a thermally sprayed or High-Velocity Oxygen Fuel (HVOF) sprayed Aluminium Alloy, is typically used to prevent this type of damage. Traditional wear analysis relies on static or truncated tests, which cannot reproduce the dynamic, transient loading environments of actual machinery. A new computational method is described here that employs Multi-Body Dynamics (MBD) in conjunction with an advancing wear model to investigate and compare the wear behaviour of thermally-sprayed Aluminium Alloy (Al-Si) and HVOF-deposited (WC-Co) coating. A slider-crank mechanism MBD model was developed to simulate dynamic contact forces and sliding velocities at the slider-guide interface. These cycle-dependent inputs were used to drive an Archard-type wear equation, which repeatedly iterated the component geometry. The results show the far superior performance of the HVOF coating, with a peak wear depth of 18.5 μm after 10 million cycles. This contrasts with catastrophic failure for the Al-Alloy coating, which wore through 2.4 mm. Above all, MBD simulation indicated a "dynamic-wear instability" in the Al-Alloy model with joint clearance, as wear-induced impact loads propagated in a positive feedback loop, leading to dynamic failure.
Keywords: Multi-Body Dynamics (MBD); Wear Characteristics; HVOF Coatings; Aluminium Alloy Coatings; Contact Mechanics; Dynamic Mechanical System; High-Velocity Oxygen Fuel (HVOF).
Received on: 07/07/2024, Revised on: 17/08/2024, Accepted on: 18/11/2024, Published on: 09/06/2025
DOI: 10.64091/ATIAS.2025.000180
AVE Trends in Intelligent Applied Sciences, 2025 Vol. 1 No. 2, Pages: 108-116