This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Use of CAE Tool to Evaluate the Body Pressure Distribution Plot on Automotive Seating
Technical Paper
2019-01-0402
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Body Pressure Distribution (BPD) plot plays a vital role during designing the seating system. The seating system provides support and comfort to the occupants while they are operating the vehicle. The traditional way to produce Body Pressure Distribution (BPD) plot for a seating system is to use actual human subject with pressure sensor mat. But this is only possible when the seat has been manufactured. The purpose of this paper is to demonstrate the capability of CAE analytical tool to find the BPD plot at the early phase of the seating system design. Computer-aided engineering (CAE) uses many different computer software to aid engineering analysis tasks by using finite element analysis (FEA) which is a numerical method for solving problems of engineering and mathematical physics. BPD plot created by using SAE standard manikin is not very realistic as that dummy back and butt is not deformable compared to human manikin dummy. Human manikin back and butt is made of deformable finite element tissue which gives more realistic direction of body pressure distribution. With the help of CAE analytical tool, the traditional process is streamlined, and a seat design could be achieved in a shorter period with greater accuracy. However, Body Pressure Distribution is a physical test that measures the physical interaction of a seat and an occupant, via pressure measurements. It is an objective information that is related to the occupant's perception of comfort. This distinction is important because each human's perception/definition of comfort is unique and isn't guaranteed to statistically correlate to what we see in a BPD scan. This project demonstrates that we can create a digital BPD scan, before a seat property is built, in order to anticipate some obvious/known/anticipated comfort issues and eliminate those issues before the first property is created. This is very valuable. However, this digital BPD scan doesn’t guarantee a complete comfort as it has been said already, comfort is an objective information that is related to the occupant's perception of comfort.
Recommended Content
| Journal Article | Development of Logistic Regression Models to Classify Seat Fit |
| Technical Paper | Comfortable Head and Neck Postures in Reclined Seating for Use in Automobile Head Rest Design |
| Journal Article | Design Optimization of Airline Seats |
Citation
Alam, D. and Chennubhotla, V., "Use of CAE Tool to Evaluate the Body Pressure Distribution Plot on Automotive Seating," SAE Technical Paper 2019-01-0402, 2019, https://doi.org/10.4271/2019-01-0402.Also In
References
- Dooge , D. , Cabane , C. , Marca , C. , Dwaramoude , R. et al. Utilizing Finite Element Tools to Model Objective Seat Comfort Results SAE Technical Paper 2012-01-0074 2012 10.4271/2012-01-0074
- Laurent , V. , Then , C. , and Silber , G. Human Modeling and CAE Based Subjective Seat Comfort Score Correlation SAE Int. J. Commer. Veh. 7 1 295 304 2014 10.4271/2014-01-1980
- Azizi , Y. , Bajaj , A. , and Davies , P. Predicting the Response of a Seat-Occupant Model by Using Incremental Harmonic Balance SAE Technical Paper 2013-01-1190 2013 10.4271/2013-01-1190
- Jones , M. , Park , J. , Ebert-Hamilton , S. , Han Kim , K. et al. Effects of Seat and Sitter Dimensions on Pressure Distribution in Automotive Seats SAE Technical Paper 2017-01-1390 2017 10.4271/2017-01-1390
- Murata , S. , Ito , H. , and Sopher , S. Polyurthane Free Lightweight Automotive Seat SAE Int. J. Mater. Manf. 7 3 655 661 2014 10.4271/2014-01-1033
- Azizi , Y. , Sundaram , V. , Davies , P. , and Bajaj , A. Estimation of Nonlinear Viscoelastic Parameters from Estimated Linear Models of Behavior around Multiple Settling Points of a Foam-Mass System SAE Int. J. Passeng. Cars - Mech. Syst. 7 1 211 220 2014 10.4271/2014-01-0851
- Barry , S.M.A. , ElMaraghy , H. , Line , J. , and Kondrad , M. Modular Design and Methods to Optimize Seat Complete Assemblies SAE Technical Paper 2017-01-1309 2017 10.4271/2017-01-1309
- Manjunath , V. , Tuniki , R. , Kamalakkannan , S. , Mathur , M. et al. CAE Methodology for Seat Assessment with H-Point Machine SAE Technical Paper 2018-01-1322 2018 10.4271/2018-01-1322
- Manjunath , V. , Tuniki , R. , Kamalakkannan , S. , Mathur , M. et al. CAE Methodology for Seat Assessment with H-Point Machine SAE Technical Paper 2018-01-1322 2018 10.4271/2018-01-1322
- Kamra , A. , Raina , S. , Maheshwari , P. , Agarwal , A. et al. Study and Proposals for Improving Static Comfort in Automotive Seating SAE Technical Paper 2017-01-1389 2017 10.4271/2017-01-1389