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Effect of Deadweight on Frame and Correlation with Human Passenger in a Two Wheeler
ISSN: 0148-7191, e-ISSN: 2688-3627
Published November 08, 2023 by SAE International in United States
Annotation ability available
Event: Automotive Technical Papers
Deadweight as payload is an important parameter, which affects the vehicle dynamics and durability of the vehicle. This paper presents a study performed to evaluate the effect of deadweight on dynamic input load, suspension operation, and fatigue life of frame in a two wheeler. Also, an optimization exercise was undertaken to correlate and optimize deadweight with a human payload in terms of equivalent damage to the frame. Strain, wheel acceleration, and suspension displacement data were acquired with pillion and multiple deadweights and compared. Relative damage spectrum (RDS) characterization and best-fit optimization methods were used for deadweight correlation. It was observed that with deadweight addition dynamic loads decreases on the front wheel while increases on the rear. Strain damage wise increasing deadweights have marginal effects on the front zone of the frame while on the middle and rear side, deadweights are detrimental. Human payload behaves like deadweight for dynamic loading as observed with higher acceleration and suspension stroke level given its magnitude, but in terms of strain damage it has very low damaging effect as compared to deadweights. Deadweight optimization exercise suggested an optimum weight to have an equivalent damage for the same durability cycle as human pillion. The study aimed to help in understanding the design load considerations taking deadweight into account as well as in the development of proving ground test cycle with deadweight as a human substitute. The latter could be applied in case of manpower planning or pandemic scenario such as COVID-19.
CitationKumar, R., Kumar, M., Irfan, M., and Kumar, P., "Effect of Deadweight on Frame and Correlation with Human Passenger in a Two Wheeler," SAE Technical Paper 2023-01-5080, 2023.
- Saraf , M. and Jambhale , M. Effect of Payload, Road Surface and Speed of Vehicle on Durability SAE Technical Paper 2003-26-0033 2003 https://doi.org/10.4271/2003-26-0033
- Kharul , R. and Pomaje , S. Effect of Human Damping on Two Wheeler Fatigue Life and Its Simulation on Two Poster Rig Using Passive Rider SAE Technical Paper 2001-26-0049 2001 https://doi.org/10.4271/2001-26-0049
- Sivashankar , S. , Sudarsanam , S. , and Saravanan , N. Durability Test Sequence and Target Generation for Variants among Commercial Vehicles SAE Technical Paper 2013-01-2377 2013 https://doi.org/10.4271/2013-01-2377
- Praveen Kumar , P. , Prakaash , J. , and Palanisamy , K. Optimization of Proving Ground Durability Test Sequence Based on Relative Damage Spectrum SAE Technical Paper 2018-01-0101 2018 https://doi.org/10.4271/2018-01-0101
- Sivashankar , S. , Hari Krishna , S. , Mendez , A. , and Dodds , C. Development of a Specific Durability Test Cycle for a Commercial Vehicle Based on Real Customer Usage SAE Technical Paper 2013-26-0137 2013 https://doi.org/10.4271/2013-26-0137
- Ensor , D. and Cook , C. Derivation of Durability Targets and Procedures Based on Real World Usage SAE Technical Paper 2007-26-074 2007 https://doi.org/10.4271/2007-26-074
- Jambhale , M. , Manel , V. , Kale , J. , and Saraf , M. Vehicle Response and Real World Driving Pattern for Indian Scenario for Vehicle Development and Optimization Program SAE Technical Paper 2013-26-0152 2013 https://doi.org/10.4271/2013-26-0152
- Panse , S. and Awate , C. Development of Accelerated Structural Durability Test Program for a Mini-truck and Its Components SAE Technical Paper 2006-01-0085 2006 https://doi.org/10.4271/2006-01-0085
- Halfpenny , A. and Pompetzki , M. Proving Ground Optimization and Damage Correlation with Customer Usage SAE Int. J. Mater. Manf. 4 1 2011 620 631 https://doi.org/10.4271/2011-01-0484
- Lee , Y.-L. , Pan , J. , Hathaway , R. , and Barkey , M. Fatigue Testing and Analysis: Theory and Practice 1st Burlington, MA Elsevier Butterworth-Heinemann 2005 9780080477695