TITLE:
Study Two-Dimensional and Three-Dimensional of the Stress Concentration of the Traction Arm of the NEW HOLLAND TT75 Tractor in Service in CHAD
AUTHORS:
Sindang Djondang, Tikri Bianzeubé, Ngoidita Natebaye, Gamma Adjeffa
KEYWORDS:
Tractor, Stress Concentration Factor, Hole Diameter, Arm Width and Pressure
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.13 No.2,
February
27,
2023
ABSTRACT: The New
Holland TT75 tractors currently in service in Chad use a tractor arm with three
holes, the middle one of which has recurrent failures due to traction. The
purpose of this work is to use a finite element model to provide an improvement
by modifying the geometric parameters to avoid premature failure of the tractor
arms of the New Holland TT75. The ultimate force formula of Eurocode 3 was used
to determine the maximum pressure to be applied and. A comparative traction
study between the current arm and the proposed arm was performed, taking into
account the variation in hole size, arm width and applied pressure for the
determination of the stress concentration factor Kt. With the determination of
Kt and for the arm width (w) less than or equal to 85 mm; the
results showed that the proposed arm geometry is better.