Rollover event simulation and optimizations of vehicle Design using Finite Element Analysis

Rollover event simulation and optimizations of vehicle Design using Finite Element Analysis

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2017 by IJETT Journal
Volume-43 Number-6
Year of Publication : 2017
Authors : Mr. Advait Sharma, Mr. Rajesh Mewada
DOI :  10.14445/22315381/IJETT-V43P251

Citation 

Mr. Advait Sharma, Mr. Rajesh Mewada " Rollover event simulation and optimizations of vehicle Design using Finite Element Analysis ", International Journal of Engineering Trends and Technology (IJETT), V43(6),305-311 January 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
It was found that as per Fatality Analysis Reporting System (FARS) rollover events cover more than 30% of the crashes. A large number of road accidents take place every year causing many fatalities and severe injuries to the vehicle occupants. Over 9 thousand people are killed yearly in rollover crashes. In 2001, 10.5% of all fatal crashes were rollovers, though only 2.2% of all crashes were rollovers. Almost fifty percent of fatalities occurring in Sport Utility Vehicles (SUVs), pickup trucks, and minivans are due to rollovers. This makes rollover a serious threat for all vehicles, but especially larger utility vehicles (NHTSA, 2002). Figure 1.1 graphically illustrates the dangers of rollover accidents. If sufficient attention is given to injury impediment, by building the vehicles innately safer, this problem can be reduced. Among the various modes of vehicle crashes, rollover crashes are often very severe and threatening to vehicle occupants. The rollover crash accident of vehicles, although occurs less frequently than any other type of accident, the fatality rate and severe injuries are highest in rollover crash. Hence the structure of the vehicle needs to be strong enough to ensure the minimum damage and at the same time it should absorb maximum impact energy. In this work numerical simulation of pick-up rollover test using finite element method is followed. As shown in figure 2, during rollover vehicle roof, A Pillar and B Pillar play an imperative role to avoid vehicle collapse. Using Finite element Approach optimizes design of roof and its surrounding systems will be finalized to reduce vehicle collapse during rollover accidents .We have also studied the use of different materials for the top in order to decrease the thickness of sheet metal of top segment while also behaving safe in the regulation. The technique is being carried with the aid of Finite Element Analysis (FEA) and Computer Aided Engineering (CAE) routines to upgrade a roof material.

 References

1. Louden E. Allison and Weston Doug, NHTSA research on improved restraints in rollovers, National Highway Traffic Safety Administration USA, 11-0213 (2007)
2. Mao M., Chirwa E.C., Chen T. and Latchford J., Static and dynamic roof crush simulation using LS DYNA3D, International Journal of crashworthiness, (2010)
3. Code of federal regulations TP-216-05, Roof Crush Resistance, National Highway Traffic Safety Administration U.S. Department of Transportation, (2006)
4. Lange Robert, Iyer Madhu, Pearce Harry, Jacuzzi Eric and Croteau Jeffery, Rollover injury science and roll over crash typology, 24th International Technical Conference at United States, 11-0116, (2009)
5. Bojanowski Cezary, Gepner Bronislaw, Kwasniewski Leslaw, Rawl Christopher and Wekezer Jerry, Roof Crush Resistance and Rollover Strength of a Para transit Bus, 8 The European LS- DYNA® Users Conference, (2011)
6. Ung Sung, Chul Young, Soon Ki and Bok Kwang, Study of optimal body structural design for coupe type vehicle in rollover events, 13-0173, (2010)
7. Purkar T. Sanjay and Pathak Sunil, Aspect of Finite Element Analysis methods for prediction of fatigue crack growth rate, Research journal of recent sciences, 1(2), 85- 91, (2012)
8. Mao Mingzhi, Chirwa C.E. and Chen T., Vehicle roof crush modeling and validation, 5th European LS- Dyna user’s conference, (2005)
9. Purkar T. Sanjay and Pathak Sunil, Analysis of crack Initiation in fretting fatigue specimen, ISCA Journal of Engineering Sciences, 1(1), 26-34, (2012)
10. Shenoy S. Sudhir, Energy absorption of a car roof reinforced with a grid stiffened composite panel in the event of a rollover, Department of mechanical engineering and the faculty of graduate school of Wichita state university, (2006)
11. Regulatory Bus Roll-Over Crash Analysis Using LS-DYNA Kadir Elitok, Product Development Dept., TEMSA A.S./TURKEY Dr. M. Ali Güler, Product Development Dept., TEMSA A.S./TURKEY Fatih Han Avc?, Product Development Dept., TEMSA A.S./TURKEY Dr. Ulrich Stelzmann, LS-DYNA Services, CADFEM GmbH/GERMANY.
12. Simulation Of Occupant Kinematics In Vehicle Rollover - Dummy Model Versus Human Model-Norbert Praxl Markus Schönpflug Jiri Adamec-Institute for Legal Medicine Munich Germany-Paper Number 202.
13. Development of a Numerical Technique for Bus Rollover Test Simulation by the F.E.M.-D. Valladares, R. Miralbes, L. Castejon.
14. Automated post processing and report generation for standard crash and safety test simulations.
15. Rollover Analysis of Passenger Bus as per AIS-031 Vishwajeet Belsare1, Prof. (Dr) Charudatta Pathak2, Milind Kulkarni3 1Department of Mechanical Engineering, SCOE, University of Pune, Maharashtra, India 2Department of Mechanical Engineering, SCOE, University of Pune, Maharashtra, India 3Node Element Consultancy Pvt. Ltd., Pune, Maharashtra, India.

Keywords
Finite Element Analysis (FEA) and Computer Aided Engineering (CAE) routines to upgrade a roof material.