CN105836050B

CN105836050B - A kind of first column type line smoothing method

Info

Publication number: CN105836050B
Application number: CN201610333088.8A
Authority: CN
Inventors: 刘元斌
Original assignee: CSSC Huangpu Wenchong Shipbuilding Co Ltd
Current assignee: CSSC Huangpu Wenchong Shipbuilding Co Ltd
Priority date: 2016-05-18
Filing date: 2016-05-18
Publication date: 2017-11-24
Anticipated expiration: 2036-05-18
Also published as: CN105836050A

Abstract

The present invention provides a kind of first column type line smoothing method, including (1) provides and respectively fixes waterline and well respectively fix waterline in Water Plane fairing；(2) connect the good arcing point for respectively fixing waterline of fairing and make a first post arc point of contact line, and the good first post arc point of contact line of 3D fairing, it is each first post camber line respectively to fix the part that waterline is clipped between hull center line and first post arc point of contact line；(3) each each first post camber line of N equal portions, accordingly connects each equal portions point and makes the first post arc equal portions dotted lines of N 1, and the first post arc equal portions dotted lines of the good N of 3D fairing 1；(4) in Water Plane and cross section, the zhou duicheng tuxing of each first post camber line and the equal portions point on the first post arc equal portions dotted line of hull center line is made using hull center line as symmetry axis；And (5) replace the first post arc between equal portions point and its axial symmetry point on the first post arc equal portions dotted line of hull center line with circular arc line connection.

Description

A kind of first column type line smoothing method

Technical field

The present invention relates to a kind of shipform setting-out method for fairing, more particularly to a kind of first column type line smoothing method.

Background technology

Hull design data provide without setting-out, only occur only in accordance with the shell profile that these data are produced swollen flat Phenomenon, the result is that in its outward appearance of water surface part unsightly, then ship resistance increases underwater portion, then to each shell type Line needs to carry out fairing, and the shell external form produced according to the data after fairing is streamlined, realizes that its is specious, ship resistance Small purpose.For curve, fairing criterion has：Second-order smooth continuity, without unnecessary flex point, Curvature varying uniformly, Do not have it is unnecessary change scratch a little and torsion change uniformly.It is by X (body lines), Y (vertical profiles at present for the fairing of shipform Line) and the mutually orthogonal ship curves of three groups of Z (waterline) fairing is carried out to realize.

Ship head posts are the components of foremost part of ship front end, and one of most important component of hull, the master of foremost part of ship The stringers on deck, fore castle deck and bulwark is terminated at first post.At present, for hull first column type line smoothing, typically in water The method that buttocks progress fairing is especially encrypted in line face using encryption station track.Because hull first column type line transition is more anxious, cause Choose suitable encrypted location to be difficult to determine, and have chosen and improperly encrypt hatching line, first column type line smoothing deviation can be caused, or even The undesirable result of hull bow smoothness of lines；Further, since hull first column type line span is larger, smooth vertical and horizontal adds Close hatching line can not effectively run through first column type line, can cause first column type line smoothing working face deficiency, although can be cutd open with unrestricted increase The method of line goes to solve, but can infinitely increase setting-out fairing workload, makes laying-down the lines fairing process tend to be complicated.

In order to simplify first post laying-down the lines fairing process, the fairness and credibility of hull bow molded line, the present invention are improved A kind of first post laying-down the lines method for fairing is provided, this method can not only evade the uncertainty of encrypted location, and abandoned with Encrypt the first column type line smoothing method that hatching line is Main Means.

The content of the invention

A kind of first column type line smoothing method of the present invention, this method is simple, fairness is good.

To achieve the above object, the present invention provides a kind of first column type line smoothing method, including (1) provides and respectively fixes waterline simultaneously Described waterline is respectively fixed Water Plane fairing is good；(2) connect the good arcing point for respectively fixing waterline of fairing and make one First post arc point of contact line, and the good first post arc point of contact line of 3D fairing, it is described respectively fix waterline be clipped in hull center line with it is described Part between first post arc point of contact line is each first post camber line；(3) each each first post camber line of N equal portions, accordingly connects each equal portions Put and make N-1 bar head post arc equal portions dotted lines, and first post arc equal portions dotted line described in the good N-1 bars of 3D fairing；(4) in the waterline Face and cross section, make each first post camber line and the institute near the hull center line by symmetry axis of the hull center line State the zhou duicheng tuxing of the equal portions point on first post arc equal portions dotted line；And (5) are replaced near described with circular arc line connection The first post arc between the equal portions point and its axial symmetry point on the first post arc equal portions dotted line of hull center line.

It is preferred that the waterline of respectively fixing includes designed water line, main deck sideline, fore castle deck sideline and bulwark top line.

It is preferred that the step (2) is also included using the good waterline of respectively fixing of fairing as reference, some waterlines of fairing.

It is preferred that the waterline includes 3500WL, 4500WL, 5000WL, 6000WL, 7000WL and 8000WL.

It is preferred that each each first post camber line is by 4 equal portions.

Compared with prior art, the present invention is by simple geometrograph, and obtaining one group, most to suit first post vertically and horizontally bent The space curve of rate, and in this, as the main carriers of fairing head column type lines, to substitute for first post arc and it is incoherent plus The first column type line smoothing work that close hatching line method is carried out, makes whole process make fairing work all under the fairing state of full load point Make compact neat, it is single-minded effectively.

Brief description of the drawings

Fig. 1 is the first schematic diagram of the first column type line smoothing method of the present invention；

Fig. 2 is the second schematic diagram of the first column type line smoothing method of the present invention；

Fig. 3 is the Water Plane figure of certain type ship bow part of the embodiment of the present invention；

Fig. 4 is the side view and profile of certain type ship bow part of the embodiment of the present invention.

Embodiment

The several different most preferred embodiments of the present invention are illustrated below with reference to the accompanying drawings, wherein identical label generation in different figures Table identical part.Below in conjunction with the accompanying drawings, embodiments of the invention are elaborated.

The present invention provides a kind of first column type line smoothing method, and this method is simple, fairness is good.

Fig. 1~2 are the schematic diagram of the first column type line smoothing method of the present invention, and Fig. 3~4 are the axonometric projection of certain type ship bow part, should First column type line smoothing method includes：

(1) provide and respectively fix waterline, respectively fixing waterline includes designed water line, main deck sideline, fore castle deck sideline and the side of a ship Wall top line, different waterlines of fixing can be provided in other ship types certainly, and well waterline is respectively fixed in Water Plane fairing；

(2) connect the good arcing point 9 for respectively fixing waterline of fairing and make a first post arc point of contact line 2, and 3D fairing Good first post arc point of contact line 2, it is each first post camber line respectively to fix the part that waterline is clipped between hull center line and first post arc point of contact line 7；With first post arc point of contact line 2 for boundary, using fairing it is good respectively fix waterline for refer to, some waterlines of fairing, in the present embodiment, Waterline includes 3500WL, 4500WL, 5000WL, 6000WL, 7000WL and 8000WL；Wherein, it is curve respectively to fix waterline, is being connect Curvature is undergone mutation during nearly bow, then point curvature undergone mutation turns into arcing point 9；Certainly, in other embodiment, waterline It can select else, each waterline as Fig. 3~4 are shown includes 6500WL, 8000WL, 9000WL, 10000WL, 10500WL, and 11000WL；

(3) each each first post camber line 7 of N equal portions and each waterline, accordingly connect each equal portions point and make N-1 bar head post arcs etc. Part dotted line, and the good N-1 bars head posts arc equal portions dotted line of 3D fairing；In the present embodiment, each each first post camber line and waterline are by 4 etc. Part, obtain the first equal portions dotted line 4 of post arc 1/4, the equal portions dotted line 5 of first post arc 1/2, and the equal portions dotted line 6 of first post arc 3/4, certainly, Yu Qi In his embodiment, N can use other different numbers；

(4) in Water Plane and cross section, with hull center, 3 be that symmetry axis makees each first post camber line 7, each waterline and first post arc The zhou duicheng tuxing of equal portions point on 1/4 equal portions line 4；And

(5) the first post between equal portions point and its axial symmetry point on the first equal portions line 4 of post arc 1/4 is replaced with the connection of circular arc line 8 Arc.

Using above-mentioned method for fairing fairing type ship bow part axonometric projection as shown in figs. 34, wherein, post wheel headed by label 1 Profile.The present invention obtains one group of space curve for most suiting first post vertically and horizontally curvature by simple geometrograph, and with this As the main carriers of fairing head column type lines, to substitute the first column type for first post arc and incoherent encryption hatching line method progress Line smoothing work, make whole process all under the fairing state of full load point, make fairing work compact neat, it is single-minded effectively.

Those of ordinary skills in the art should understand that：The discussion of any of the above embodiment is exemplary only, not It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples；Under the thinking of the present invention, above example Or can also be combined between the technical characteristic in different embodiments, and the different aspect of the present invention as described above be present Many other changes, in order to it is concise they do not provided in details.Therefore, within the spirit and principles of the invention, Any omission for being made, modification, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims

A kind of 1. first column type line smoothing method, it is characterised in that including：

(1) provide and respectively fix waterline and described respectively fix waterline Water Plane fairing is good；

(2) connect the good arcing point for respectively fixing waterline of fairing and make a first post arc point of contact line, and 3D fairing is good The first post arc point of contact line, described respectively to fix the part that waterline is clipped between hull center line and the first post arc point of contact line be each First post camber line；

(3) each each first post camber line of N equal portions, accordingly connects each equal portions point and makes N-1 bar head post arc equal portions dotted lines, and three To first post arc equal portions dotted line described in the good N-1 bars of fairing；

(4) in the Water Plane and cross section, using the hull center line as symmetry axis make each first post camber line and near The zhou duicheng tuxing of the equal portions point on the first post arc equal portions dotted line of the hull center line；And

(5) the equal portions point on the first post arc equal portions dotted line of the hull center line is replaced with circular arc line connection And its first post arc between axial symmetry point.
2. first column type line smoothing method according to claim 1, it is characterised in that the waterline of respectively fixing includes design water Line, main deck sideline, fore castle deck sideline and bulwark top line.
3. first column type line smoothing method according to claim 1, it is characterised in that the step (2) also includes with fairing The good waterline of respectively fixing is reference, some waterline of fairing.
4. first column type line smoothing method according to claim 3, it is characterised in that some waterlines include 3500WL, 4500WL, 5000WL, 6000WL, 7000WL and 8000WL.
5. first column type line smoothing method according to claim 1, it is characterised in that each each first post camber line is by 4 etc. Part.