CN105956246B - The design method of hyperbolicity automobile door glass - Google Patents
The design method of hyperbolicity automobile door glass Download PDFInfo
- Publication number
- CN105956246B CN105956246B CN201610264594.6A CN201610264594A CN105956246B CN 105956246 B CN105956246 B CN 105956246B CN 201610264594 A CN201610264594 A CN 201610264594A CN 105956246 B CN105956246 B CN 105956246B
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- hyperbolicity
- cydariform
- glass
- parametrization
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
Abstract
The present invention relates to a kind of design method of hyperbolicity automobile door glass, including the following steps: (1) according to the feature of hyperbolicity glass and moulding face, determine geometry input model；(2) the drum shaft position of parametrization is determined according to input model；(3) the cydariform surface model of parametrization is established according to local coordinate system and the math equation in cydariform face；(4) cydariform facial contour is cut, cydariform hyperbolicity glass surface is generated.Design method of the invention improves traditional toroidal design model, the design of optimization and cydariform hyperbolicity glass to drum shaft position has specification directive function, it is also beneficial to improve the fitting precision and moving-mass of hyperbolicity glass simultaneously, reduce the generation of failure rate, it with very high engineering real value, while being also the big requirement for improving automobile industry Vehicle Body Development ability.
Description
Technical field
The present invention relates to a kind of hyperbolicity automobile door glass, more particularly to a kind of design method of cydariform automobile door glass.
Technical background
In today that auto industry is grown rapidly, the streamlined and aerodynamic demands of vehicle body are higher and higher, increasingly
More cars uses hyperbolicity side window, and cydariform hyperbolicity side window also has become the main direction of development of automobile door glass.?
In traditional design cycle, automobile door glass and its design for guiding system are one very strong to engineer's personal experience's dependence
Work no longer adapts to the rhythm of modern production in fierce market competition.And the design rule of cydariform hyperbolicity side window
Model has become the difficult point in automobile door structure design.
The horizontal and vertical curvature of hyperbolicity glass is all larger than zero, because of referred to herein as hyperbolicity glass, elevating movement form
The resultant motion of rotation and sliding can be regarded as under the decomposition of solid geometry, this more complicated forms of motion gives hyperboloid glass
The design of glass brings more challenges.It common are anchor ring and cydariform surface model.Double curved glass can regard the two as
One section of curved surface of the interception of model, specific position and size are determined by parameters such as the radius wheelbases of model.
The fitting design of side window hyperbolicity glass mostly uses anchor ring to be fitted.But this method is primarily present two problems:
The moulding face deviation of the anchor ring fitted and actual glass is excessive, and project designing accuracy requirement is not achieved；Glass motion is unstable
It is fixed, it is difficult to meet aerodynamic demands.These problems can be avoided using cydariform foliation opinion well, be setting for hyperbolicity glass
Meter meets professional standard.
Summary of the invention
The object of the present invention is to provide a kind of design methods of hyperbolicity automobile door glass based on cydariform foliation opinion, to mention
The stability and reliability of high design efficiency and hyperbolicity glass reduce the failure rate of hyperbolicity glass.
To achieve the above object, the technical scheme is that a kind of design method of hyperbolicity glass, including it is following several
A step:
(1) according to the feature of hyperbolicity glass and moulding face, geometry input model is determined；
(2) the drum shaft position of parametrization is determined according to input model；
(3) the cydariform surface model of parametrization is established according to local coordinate system and the math equation in cydariform face；
(4) cydariform facial contour is cut, cydariform hyperbolicity glass surface is generated.
In the step (1), geometry input model includes the boundary point of hyperbolicity glass, front and back boundary line, upper border line
And stringcourse.
In the step (2), the drum shaft position of parametrization is driven by the angle and midpoint position for rousing axis rotation.
In the step (3), the math equation in cydariform face are as follows:
Wherein: X, Y, Z indicate the variable in rectangular coordinate system, and a, b, c are any
Normal number.
In the step (4), using boundary line as cutting line, the glass surface of parametrization is generated.
The beneficial effects of the present invention are: the hyperbolicity automobile door glass design method that the present invention is implemented improves traditional anchor ring and sets
Model is counted, the design of optimization and cydariform hyperbolicity glass to drum shaft position has specification directive function, is also beneficial to simultaneously
The fitting precision and moving-mass for improving hyperbolicity glass, reduce the generation of failure rate, have very high engineering real value, together
When be also to improve the one of automobile industry Vehicle Body Development ability big to require.
Detailed description of the invention
Fig. 1 is input model figure of the invention；
Fig. 2 is 1 schematic diagram of local coordinate system in the present invention；
Fig. 3 is the parametrization drum shaft position figure designed in the present invention；
Fig. 4 is 2 schematic diagram of local coordinate system in the present invention；
Fig. 5 is the cydariform face math equation model in the present invention；
Fig. 6 is the side window face schematic diagram after cutting in the present invention；
Specific embodiment
A specific embodiment of the invention is illustrated below according to attached drawing.The step of following figure describes is exemplary, mesh
Be explain the present invention, and understanding of the invention cannot be limited.
The design method of hyperbolicity automobile door glass based on cydariform foliation opinion of the invention, including the following steps:
(1) according to the feature of hyperbolicity glass and moulding face, geometry input model is determined；
(2) the drum shaft position of parametrization is determined according to input model；
(3) the cydariform surface model of parametrization is established according to local coordinate system and the math equation in cydariform face；
(4) cydariform facial contour is cut, cydariform hyperbolicity glass surface is generated.
In the step (1), geometry input model includes the boundary point of hyperbolicity glass, front and back boundary line, upper border line
And stringcourse.
In the step (2), the drum shaft position of parametrization is driven by the angle and midpoint position for rousing axis rotation.
In the step (3), the math equation in cydariform face are as follows:
Wherein: X, Y, Z indicate the variable in rectangular coordinate system, and a, b, c are any
Normal number.
In the step (4), using boundary line as cutting line, the glass surface of parametrization is generated.
Embodiment:
According to the front window glass model of certain vehicle, in conjunction with hyperbolicity glass surface practical fitting with the characteristics of motion, determine
Such as the input model of Fig. 1: point A, point G are respectively the intersection point of front and back boundary line and upper border line, and point C, point E be respectively front and rear side
The intersection point in boundary line and stringcourse, point B are the midpoint of AC, and point F is the midpoint of EG, and point D is the midpoint of CE, and point H is AG in vertical direction
Midpoint, point K be FB at the midpoint of vertical direction.
It is theoretical according to the moulding in cydariform face, the position of drum axis is established first: making the circular arc line by 3 points of EFG, and
Take its center of circle O1, cross O1The axis L1 of circular arc 1 is made, O is connected1F, with O1For origin, L1 is X-axis, O1F is that Y-axis establishes an office
Portion coordinate system CSYS1, such as Fig. 2.
At coordinate system CSYS1, axis L1 is rotated into an angle A 1 around Y-axis, then it is rotated to an angle about the z axis
A2, initial value are set as 1 °.Show that the axis L2, L2 of a parametrization are drum axial location, direction is driven by A1, A2, is such as schemed
3。
Point F is projected to obtain point O to axis L22, connect O2F, using axis L1 as X-direction, O2F is Y direction foundation office
Portion reference axis CSYS2, such as Fig. 4.
With O2For origin, CSYS2 is the cydariform face that coordinate system creates a cydariform face equation, and the direction L2 is the X-axis of equation
Direction, b=O2F, such as Fig. 5.
By the foundation of above-mentioned parameter model, the fitting of cydariform hyperbolicity glass can regard the optimization of risk management as
Problem goes out optimal drum shaft position by A1, A2 parameter optimization, variation optimization and the original face vehicle configuration A by a b c
The smallest hyperbolicity glass surface of deviation.Side window glass face, such as Fig. 6 are cut into cydariform face.
In the description of the present invention, it is to be understood that, " taking a little " terms such as " projection " " translation " " rotations " is based on attached
The orientation or positional relationship of figure, it is therefore intended that simplify and describe design specification of the invention, and should not be understood as specific position and
Step.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood as the case may be
Body meaning.
Although specific implementation step of the invention has already given above, it is to be understood that above-described embodiment is to have to show
Plasticity matter, the understanding of the present invention cannot be limited, those skilled in the art within the scope of the invention can be to upper
State embodiment be replaced, change and modification.
Claims (4)
1. a kind of design method of hyperbolicity automobile door glass, which is characterized in that including the following steps:
(1) according to the feature of hyperbolicity glass and moulding face, geometry input model is determined；
(2) determine the drum shaft position of parametrization according to input model, the drum shaft position of parametrization by rouse axis rotation angle and
The driving of midpoint position；
(3) the cydariform surface model of parametrization is established according to local coordinate system and the math equation in cydariform face；
(4) cydariform facial contour is cut, cydariform hyperbolicity glass surface is generated.
2. the design method of hyperbolicity automobile door glass according to claim 1, it is characterised in that: several in the step (1)
What input model includes the boundary point of hyperbolicity glass, front and back boundary line, upper border line and stringcourse.
3. the design method of hyperbolicity automobile door glass according to claim 1, it is characterised in that: in the step (3), drum
The math equation in shape face are as follows:
Wherein: X, Y, Z indicate that the variable in rectangular coordinate system, a, b, c are arbitrarily just
Constant.
4. the design method of hyperbolicity automobile door glass according to claim 1, it is characterised in that: in the step (4), with
Boundary line is cutting line, generates the glass surface of parametrization.
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| CN201610264594.6A CN105956246B (en) | 2016-04-26 | 2016-04-26 | The design method of hyperbolicity automobile door glass |
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| CN201610264594.6A CN105956246B (en) | 2016-04-26 | 2016-04-26 | The design method of hyperbolicity automobile door glass |
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| CN105956246B true CN105956246B (en) | 2019-03-05 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107650634B (en) * | 2017-08-21 | 2020-08-21 | 中国第一汽车股份有限公司 | Design method of double-curvature glass of automobile door and window |
| CN108086851A (en) * | 2017-12-12 | 2018-05-29 | 奇瑞汽车股份有限公司 | Lifting glass for vehicle window system |
| CN111703280B (en) * | 2020-04-16 | 2021-11-23 | 东风汽车集团有限公司 | Glass surface of double-guide-rail glass lifting system and design method |
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|---|---|---|---|---|
| FR2839019A1 (en) * | 2002-04-29 | 2003-10-31 | Wagon Automotive Snc | Window panel with double curvature for aperture in vehicle uses curved rails on fixed structure to produce second curve of panel |
| CN2723245Y (en) * | 2004-04-21 | 2005-09-07 | 上海同济同捷科技股份有限公司 | Vehicle door glass |
| CN201198291Y (en) * | 2008-03-27 | 2009-02-25 | 李祖贤 | Double curvature rearview mirror |
| CN103696645A (en) * | 2013-12-23 | 2014-04-02 | 安徽江淮汽车股份有限公司 | Manufacturing method for lifting guide rail of side window glass of automobile |
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2016
- 2016-04-26 CN CN201610264594.6A patent/CN105956246B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2839019A1 (en) * | 2002-04-29 | 2003-10-31 | Wagon Automotive Snc | Window panel with double curvature for aperture in vehicle uses curved rails on fixed structure to produce second curve of panel |
| CN2723245Y (en) * | 2004-04-21 | 2005-09-07 | 上海同济同捷科技股份有限公司 | Vehicle door glass |
| CN201198291Y (en) * | 2008-03-27 | 2009-02-25 | 李祖贤 | Double curvature rearview mirror |
| CN103696645A (en) * | 2013-12-23 | 2014-04-02 | 安徽江淮汽车股份有限公司 | Manufacturing method for lifting guide rail of side window glass of automobile |
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| 双曲率车门玻璃的圆环面拟合法;雷雨成等;《汽车工程》;20051231;第27卷(第5期);全文 |
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