Design Method of Automobile Air Conditioning Defrost Duct
A technology of automobile air conditioning and design method, applied in the direction of calculation, mechanical equipment, instruments, etc., can solve the problem of time-consuming and laborious, and achieve the effect of clear goals, clear variables, and optimized design
Active Publication Date: 2019-01-25
JIANGSU XINQUAN AUTOMOTIVE TRIM
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The traditional design method is that design engineers rely on their own experience to optimize the structure, which is time-consuming and laborious
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[0019] see figure 1 , figure 2 , Image 6 with Figure 7 Establish an effective three-dimensional grid model for automobile air conditioning and air ducts, use the above-mentioned three-dimensional grid model for CFD analysis, and calculate the air volume distribution at the entrance of each air duct from the analysis results; view Image 6 The wind speed cloud diagram on each windshield shown is the coverage area on the windshield by the wind blowing from the outlet of the air duct.
[0020] According to the results of CFD analysis, first adjust the air volume distribution at the entrance of the air duct, and adjust the length of the entrance of the air duct (see figure 2 with image 3 ) L1, L2, L3, L4 and the cross-sectional area S1 and S2 of the left and right air ducts are used as design variables. Only one variable is changed at a time. The general air volume distribution ratio is 1:4:4:1, but due to air conditioning The wind generated by the outlet is not evenly distribute...
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The invention relates to a method for designing automotive upholstery, and particularly relates to a computer simulation design on a duct of an automobile air conditioner. The invention aims to provide a method for designing a defrosting duct of an automobile air conditioner, which is high in design efficiency and can shorten the duct development cycle. The method for designing a defrosting duct of an automobile air conditioner is implemented by using a CAE emulation technique, and comprises the following steps: 1) modeling: building product data provided by a design engineer into a closed mesh model by using modeling software; 2) CFD analysis: carrying out steady-state defrosting analysis on the model built in the step 1 by using analysis software; 3) optimized analysis: according to CFD analysis results, optimizing an area which does not reach the standard, setting a design variable, and getting a floating range; 4) editing an objective function according to the design variable preset in the step 3), and carrying out optimized analysis; and 5) model transformation: transforming the optimized mesh model meeting the requirement into three-dimensional data, and carrying out object manufacturing. The method disclosed by the invention has the advantages that the optimization of design variables is realized by using computer software, the variables are clear and objectives are clear, so that a CAE engineer and a design engineer can cooperate for achieving the purpose of design optimization in a short time as far as possible.
Description
Technical field [0001] The invention relates to a design method of automobile interior parts, in particular to computer simulation design of automobile air-conditioning ducts. Background technique [0002] The performance of a car not only includes its power and economy, but also its functionality and comfort. It is also a very important reference index, especially in the case of rain in summer or frost in winter, its defrosting and defogging functions appear Especially prominent. If the defrosting effect of the car is not good, it will seriously affect the driver's sight, and there will be hidden dangers in driving. If the wind blown from the air outlet is not evenly distributed or the temperature is not uniform, it will make the occupants feel uncomfortable, so the distribution of air volume is still very important. The traditional design method is that design engineers use their own experience to optimize the structure, which is time-consuming and laborious. Summary of the ...
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IPC IPC(8): G06F17/50
CPCY02T10/40
Inventor万丹丹李乔军
OwnerJIANGSU XINQUAN AUTOMOTIVE TRIM