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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Kames, Elisabeth Thiess, David Morkos, Beshoy |
| Copyright Year | 2018 |
| Abstract | This paper examines the educational benefit of modeling and analyzing a quarter car suspension system to simulate the vehicle response to various road inputs. The response of the vehicle was considered both theoretically and experimentally. The primary goal of the study is to test the ability to integrate similar approaches in an educational setting to allow students to gain a “real world” perspective on their theoretical coursework. Typical engineering curriculum focuses heavily on theoretical computational models. However, some students have trouble relating this calculated data to practical occurrences. This paper outlines the challenges and considerations for implementing experimental procedures into common coursework to compare to theoretical calculated data. For the theoretical model, the equation of motion of the dynamic response of the suspension system was obtained using Lagrange’s equation. Using a 2013 Jeep Wrangler Sport, the suspension spring constant, the tire spring constant, the tire damping coefficient, and the suspension damping coefficient were calculated or estimated experimentally (these parameters were used for both the theoretical and the experimental models). The combination of the MATLAB and Simulink files were used to produce visual representations of the response of the vehicle to road inputs. The experimental model is obtained using a combination of MATLAB and accelerometer data. The 2013 Jeep Wrangler was exposed to three different real-world inputs: a step up, a step down, and a sinusoidal input (a speed bump). The experimental and theoretical data is compared to exhibit trends of the vehicle to these road inputs. While the models do not align numerically, the trends of the experimental and theoretical data are shown to coincide for each of the responses. This paper will outline the quarter car model used and the mathematical model of it, the methods used to solve the model, the results obtained from the study, and the ability to integrate methods such as this into a classroom setting as a supplement. |
| Sponsorship | Design Engineering Division Computers and Information in Engineering Division |
| File Format | |
| ISBN | 9780791851784 |
| DOI | 10.1115/DETC2018-86327 |
| Volume Number | Volume 3: 20th International Conference on Advanced Vehicle Technologies; 15th International Conference on Design Education |
| Conference Proceedings | ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference |
| Language | English |
| Publisher Date | 2018-08-26 |
| Publisher Place | Quebec City, Quebec, Canada |
| Access Restriction | Subscribed |
| Subject Keyword | Damping Accelerometers Dynamic response Elastic constants Roads Equations of motion Modeling Vehicles Suspension systems Students Tires Matlab Sports |
| Content Type | Text |
| Resource Type | Article |
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