Vehicle lamp lens solar focusing simulation analysis method
A simulation analysis, sunlight technology, applied in 3D modeling, image data processing, special data processing applications, etc., can solve problems such as inability to take preventive measures, ablation of lens plastic parts, etc.
Active Publication Date: 2018-11-09
CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
View PDF5 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In order to solve the problem of ablation of the plastic parts around the lens caused by the focus of sunlight on the lens of the car lamp and preventive measures cannot be taken, the present invention provides a simulation analysis method for the focus of sunlight on the lens of the car lamp
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0027] This embodiment proposes a method for simulating and analyzing the focus of sunlight on the lens of a car lamp. The simulating and analyzing method needs to be implemented on the data of the entire lamp with a lens module. The light source of the lens module includes a halogen light source, a xenon light source, and an LED light source. 3D data model of the whole lamp with lens ( figure 1 ), including the lens module, plastic parts and the air domain inside and outside, as well as the body sheet metal around the lamp, and the simulated light-emitting surface at the front of the lampshade to simulate the sunlight shining on the lamp at different incident angles. The CAD software is selected CATIA, UG or other 3D modeling software, fluid simulation software choose ANSYS Fluent or other fluid simulation software;
[0028] Perform preprocessing on l...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a vehicle lamp lens solar focusing simulation analysis method. The method comprises steps: a lamp 3D data model with a lens is designed, wherein the lamp 3D data model comprises a lens module, a plastic part, air domains inside and outside the lamp, vehicle body sheet metal around the lamp and a light emitting surface at the front part of a lampshade; geometric data preprocessing is carried out, all geometric data characteristics affecting thermology and optics are kept, and surface processing areas of all parts are defined at the same time; in view of all parts, individual mesh size setting is carried out, the mesh is then divided, and all local areas affecting thermology and optics are subjected to mesh refinement; the mesh data obtained in the third step are guided to fluid simulation software, simulation parameters and governing equations are set, and after solution, a simulation result is obtained; and according to the simulation result, whether the peripheral components of the lens of the lamp are at risk of ablation due to the focus of sunlight can be judged. Hidden sunlight focusing risks can be found out in the early stage of lamp design, preventivemeasures are thus taken in advance to prevent occurrence of lamp failure.
Description
technical field [0001] The invention belongs to the technical field of car lamp simulation, in particular to a method for simulating and analyzing sunlight focusing of a car lamp lens, which can be widely used in the research and development field of car lamps. Background technique [0002] With the popularization of automobiles, automotive lamps play a very important role in the safe driving of vehicles, and lens lamps are used by more and more models due to their advantages such as good light concentrating, strong penetrating power, and clear road surfaces. However, during the use of the lamps, it will be found that some parts around the lens of the lamps are ablated. Research shows that when the car is parked at a certain position and the sun shines on the lamps at a certain angle, the sun's rays are refracted and reflected by the lens. Formation of a focus at or around the component, resulting in concentrated temperature ablation of the component and ultimately failure o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/20G06F17/50
CPCG06T17/20G06F30/23Y02T90/00
Inventor 董振管方君尹丽伟李茹
Owner CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD