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A Case Study for Automotive Door Closing Effort Uncertainty Analysis based on Monte Carlo Simulation Method
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 07, 2013 by SAE International in United States
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Quality in the automotive industry means development and manufacturing of vehicles whose specifications meet customer requirements. Among many other quality issues, door closing effort is a vehicle characteristic that strongly affects the customer first opinion about vehicle design. The door closing effort is affected by uncertainties in materials and manufacturing processes. The present paper presents a reliability-based method to evaluate the uncertainties associated with door closing effort due to manufacturing processes. A formulation is proposed to calculate that energy based on three components: energy used to compress air into the vehicle, energy used to compress the sealing and energy used to lock the door. In order to quantify the probability that the door closing effort is greater than a target value, reliability analysis concepts are used based on the uncertainties associated to latch position.
The Monte Carlo simulation is used to define door closing effort variability due to variation of the side door latch position. That analysis allows defining maximum allowable latch and striker position variability in order to keep door closing effort below a target value. The latch position uncertainty is modeled by a probability distribution defined based on data collected from the assembly process. The probability of having a door closing effort magnitude lower than a target value is then calculated. Simulated distribution is compared to experimentally door effort analysis showing very good agreement between them. The simulation based model is used to evaluate the feasibility of manufacturing processes changes to reduce door closing effort.
CitationPereira, F. and de Souza, G., "A Case Study for Automotive Door Closing Effort Uncertainty Analysis based on Monte Carlo Simulation Method," SAE Technical Paper 2013-36-0118, 2013, https://doi.org/10.4271/2013-36-0118.
- Cai W. A new tolerance modeling and analysis methodology through a two-step linearization with applications in automotive body assembly Journal of Manufacturing Systems 2008
- Pierreval H. , Bruniaux R. , Caux C. A continuous simulation approach for supply chains in the automotive industry Simulation Modelling Practice and Theory 2006
- Zou T. , Mahadevan S , Mourelatos Z.P. Reliability-based evaluation of automotive wind noise quality Reliability Engineering and System Safety 2003
- Zou T. , Mahadevan S , Mourelatos Z.P , Meernik P. Reliability analysis of automotive body-door subsystem Reliability Engineering and System Safety 2002
- Li , J. , Mourelatos , Z. , Schwarze , F. , and Rozenbaum , J. Prediction of Automotive Side Swing Door Closing Effort SAE Int. J. Passeng. Cars - Mech. Syst. 2 1 271 284 2009 10.4271/2009-01-0084
- Coelho T. A. H. Metodologia para análise e síntese de mecanismos Escola Politécnica da USP 2008
- Udriste D. I. , Negrus E. M. Construction and kinematics of automotive side door latch mechanisms SAE Technical Paper Series, 2005-01-0881 2005
- Zhao J. ; Zhu X. ; Wan D. The development of testing device for compression deformation of automotive door weather-strips seals SAE Technical Paper Series, 2002-01-0803
- Huang Z. , Wu S. , Zhang L. Study of minimum door closing speed analysis method SAE Technical Paper Series, 2011-01-0782
- Khakhali A. , Nariman-zadeh N. , Darvizeh A. , Masoumi A. , Notghi B. Reliability- based robust multi-objective crashworthiness optimisation of S-shapedbox beams with parametric uncertainties International Journal of Crashworthiness 15 2010
- Yang K , Younis H. A semi-analytical Monte Carlo simulation method for system's reliability with load sharing and damage accumulation Reliability Engineering and System Safety 2005
- Pengelly , J. Monte Carlo Methods www.montecarlomethods/studydisp.com 2002
- Hyung-il M. , Ho K. , Sang B. K. , Do H. K. , Heon Y. K. Predicted minimum door-closing velocity based on a three-dimensional door-closing simulation Finite Elements in Analysis and Design 2011