Development of Multi-DOF Model of Automotive LED Headlamp Assembly for Force Transmission Prediction Using MATLAB GUI
The use of Light-emitting diodes (LEDs) in automobile headlamps began two decades ago. Since then, several design and efficiency improvements have been made. However, the reliability and durability of these LED systems remain uncertain. There are several approaches for reliability analysis, e.g., th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/17/5906 |
| _version_ | 1797555531999608832 |
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| author | Muhammad Moghees Ud Din Byeongil Kim |
| author_facet | Muhammad Moghees Ud Din Byeongil Kim |
| author_sort | Muhammad Moghees Ud Din |
| collection | DOAJ |
| description | The use of Light-emitting diodes (LEDs) in automobile headlamps began two decades ago. Since then, several design and efficiency improvements have been made. However, the reliability and durability of these LED systems remain uncertain. There are several approaches for reliability analysis, e.g., thermal, electrical, optical, or structural. The first three issues have been studied in the past, but there has been minimal focus on structural and dynamic durability. Uneven road conditions and impact forces acting on the headlamp module can damage components and misalign the aiming mechanism. Moreover, the functionality could be disturbed, thereby decreasing the efficiency of the system. To determine the forces acting inside the module on each component, this study proposes a simulation technique for predicting the magnitude of forces transmitted from the automobile chassis to the headlamp module under even and uneven road conditions. A vibration system with 23 degrees-of-freedom is developed and equations of motion are derived using Newton’s second law of motion. Solving this system of equations with Simulink and MATLAB provided the linear and angular displacements of each element, which were then utilized to calculate the forces transmitted through these elements. Two forcing conditions were compared and the locations with maximum forces are highlighted. |
| first_indexed | 2024-03-10T16:48:51Z |
| format | Article |
| id | doaj.art-7b2f6c82ec384ceca53f2f1d9e84793d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T16:48:51Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-7b2f6c82ec384ceca53f2f1d9e84793d2023-11-20T11:24:25ZengMDPI AGApplied Sciences2076-34172020-08-011017590610.3390/app10175906Development of Multi-DOF Model of Automotive LED Headlamp Assembly for Force Transmission Prediction Using MATLAB GUIMuhammad Moghees Ud Din0Byeongil Kim1School of Mechanical Engineering, Yeungnam University, Daehak-ro, Gyeongsan-si, Gyeongsangbuk-do 38541, KoreaSchool of Mechanical Engineering, Yeungnam University, Daehak-ro, Gyeongsan-si, Gyeongsangbuk-do 38541, KoreaThe use of Light-emitting diodes (LEDs) in automobile headlamps began two decades ago. Since then, several design and efficiency improvements have been made. However, the reliability and durability of these LED systems remain uncertain. There are several approaches for reliability analysis, e.g., thermal, electrical, optical, or structural. The first three issues have been studied in the past, but there has been minimal focus on structural and dynamic durability. Uneven road conditions and impact forces acting on the headlamp module can damage components and misalign the aiming mechanism. Moreover, the functionality could be disturbed, thereby decreasing the efficiency of the system. To determine the forces acting inside the module on each component, this study proposes a simulation technique for predicting the magnitude of forces transmitted from the automobile chassis to the headlamp module under even and uneven road conditions. A vibration system with 23 degrees-of-freedom is developed and equations of motion are derived using Newton’s second law of motion. Solving this system of equations with Simulink and MATLAB provided the linear and angular displacements of each element, which were then utilized to calculate the forces transmitted through these elements. Two forcing conditions were compared and the locations with maximum forces are highlighted.https://www.mdpi.com/2076-3417/10/17/5906force transmissionmulti-degrees-of-freedomgraphical user interface (GUI) |
| spellingShingle | Muhammad Moghees Ud Din Byeongil Kim Development of Multi-DOF Model of Automotive LED Headlamp Assembly for Force Transmission Prediction Using MATLAB GUI Applied Sciences force transmission multi-degrees-of-freedom graphical user interface (GUI) |
| title | Development of Multi-DOF Model of Automotive LED Headlamp Assembly for Force Transmission Prediction Using MATLAB GUI |
| title_full | Development of Multi-DOF Model of Automotive LED Headlamp Assembly for Force Transmission Prediction Using MATLAB GUI |
| title_fullStr | Development of Multi-DOF Model of Automotive LED Headlamp Assembly for Force Transmission Prediction Using MATLAB GUI |
| title_full_unstemmed | Development of Multi-DOF Model of Automotive LED Headlamp Assembly for Force Transmission Prediction Using MATLAB GUI |
| title_short | Development of Multi-DOF Model of Automotive LED Headlamp Assembly for Force Transmission Prediction Using MATLAB GUI |
| title_sort | development of multi dof model of automotive led headlamp assembly for force transmission prediction using matlab gui |
| topic | force transmission multi-degrees-of-freedom graphical user interface (GUI) |
| url | https://www.mdpi.com/2076-3417/10/17/5906 |
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