CN103661794B

CN103661794B - One waits fraction to tilt water bottom boats and ships

Info

Publication number: CN103661794B
Application number: CN201310639413.XA
Authority: CN
Inventors: 张恩国; 马延德; 沈闻孙; 田天; 包岩; 王景洋; 彭贵胜; 陈立
Original assignee: Dalian Shipbuilding Industry Co Ltd
Current assignee: Dalian Shipbuilding Industry Co Ltd
Priority date: 2013-11-29
Filing date: 2013-11-29
Publication date: 2016-06-01
Anticipated expiration: 2033-11-29
Also published as: CN103661794A

Abstract

The present invention discloses one and waits fraction to tilt water bottom boats and ships, comprising the end (3) in flat outer bottom (1) peace of the parallel setting of bottom of ship, described flat outer bottom (1) the peaceful interior end (3), passes through to connect the oblique outer bottom (6) of parallel setting respectively and tiltedly the interior end (5) is connected to topside; Between the knuckle position of described flat outer bottom (1) and oblique outer bottom (6) and the described knuckle position putting down the interior end (3) and the oblique interior end (5), bottom stringers (2) is set. Bottom stringers (2) and longitudinalbulkhead (4) contraposition (if longitudinalbulkhead is set), the knuckle of the end and outer bottom in stringers (2) decile of bottom, knuckle place is consistent with the upper end point coordinate of bottom stringers (2) at the interior end, and outer bottom knuckle place is consistent with the lower end points coordinate of bottom stringers (2). Invention applies the method arranging bottom stringers at knuckle point, application waits a point angle principle, reasonably arranges and each structure angle design effectively delivers load, reduce stress and concentrate, it is to increase the intensity of structure, simplifies technique.

Description

One waits fraction to tilt water bottom boats and ships

Technical field

The present invention relates to shipbuilding n. technical field, say more specifically, it relates to the mode of connection of water bottom in water bottom boats and ships.

Background technology

Design at the bottom of existing marine vessel applications horizontal duplex as shown in Fig. 1,2 and 5, the parallel setting in the end 3 in flat outer bottom 1 peace; Such as Fig. 1, bottom stringers 2 is not set in flat outer bottom 1 peace at the end 3. Such as Fig. 2, arranging bottom stringers 2 in flat outer bottom 1 peace, bottom stringers 2 is supported on below longitudinalbulkhead 4 at the end 3.

Problem is, in order to reach certain functional requirement, the outer bottom in ship design is connected with the transition of topside and adopts part inclined design, such as Fig. 3,4, can not the type of attachment shown in application drawing 1,2 completely, it is thus desirable to original type of attachment is improved.

Summary of the invention

The present invention is directed to the problems referred to above, devise a kind of knuckle waiting fraction to tilt water bottom and design, its object is intended to ensure the structural strength of knuckle, under avoiding the prerequisite that stress is concentrated, is connected at the end in oblique outer bottom peace outer bottom, tiltedly peace of the interior end.

In order to achieve the above object, the present invention provides a kind of and waits fraction to tilt water bottom boats and ships, comprises the end in the flat outer bottom peace of the parallel setting of bottom of ship. In described flat outer bottom peace, the end, is connected to topside by the oblique outer bottom and the oblique interior end connecting parallel setting respectively; Between the knuckle position of described flat outer bottom and tiltedly outer bottom and the described knuckle position putting down the interior end and the oblique interior end, bottom stringers is set. And, the knuckle between described flat outer bottom and oblique outer bottom and at the described flat interior end and the described oblique interior end divided equally by described bottom stringers.

, as required, in addition the top of described bottom stringers arranges longitudinalbulkhead.

Invention applies the method that bottom stringers is set at knuckle point, application etc. point angle principle, reasonably arrange each structure angle design, effectively deliver the load of the interior end and outer bottom, reduce the stress produced because of knuckle to concentrate, it is to increase the intensity of structure, simplify technique.

Accompanying drawing explanation

Fig. 1, Fig. 2 are two kinds of prior art water bottom boats and ships ship type longitudinal section schematic diagram.

Fig. 5 is the specific form schematic diagram such as bottom of ship at the bottom of horizontal duplex in Fig. 1,2 prior aries.

Fig. 3,4 is that the fractions such as the present invention tilt water bottom boats and ships ship type longitudinal section schematic diagram.

Fig. 6 is that the present invention waits fraction to tilt the knuckle design form schematic diagram of water bottom.

Embodiment

In order to reach certain functional requirement, outer bottom in ship design adopts inclined design, if the interior end still adopts conventional design level to arrange, will causing interior outer bottom injustice row, interior outer bottom is built coordinate and is determined very complicated, web plate between outer bottom of the interior end is all trapezoidal plate, the sheet material ordered goods due to steel mill is all rectangular plate, it is necessary to Duo Ji road cutting technique, and, the side plate cut away cannot recycle, and laid down cost will increase greatly.

The present invention is as shown in Fig. 3,4,6, and the flat outer bottom 1 peace interior end 3 connects oblique outer bottom 6 by knuckle respectively and tiltedly the interior end 5 extends to topside, and the advantage of outer bottom and Parallel Design of the interior end is, facilitate arrangement, facilitate on-the-spot construction, it is to increase the utilization ratio of steel plate, the cost of saving steel. With managing, the knuckle point of flat outer bottom 1 and oblique outer bottom 6 is consistent with knuckle point contraposition and the horizontal coordinate at the tiltedly interior end 5 with the flat interior end 3, can ensure that the plate at the bottom of horizontal duplex is rectangle equally.

As shown in Figure 3, flat outer bottom 1 and tiltedly outer bottom 6 knuckle point and described flat in the end 3 and tiltedly in the end 5 knuckle point between bottom stringers 2 is set. This design, corresponding in design at the bottom of the horizontal duplex of such as Fig. 1 prior art, if not needing to arrange longitudinalbulkhead, does not have bottom stringers usually yet. The advantage that this kind designs is: owing to the oblique interior end 5 and the flat interior end 3 be not in same plane, in flat, the end 3 load can only be delivered to knuckle point along plane of the flat interior end 3, in tiltedly, the end 5 load can only be delivered to knuckle point along tiltedly plane of the interior end 5, two dynamic changes process direction changes, the out-of-plane load in the flat interior end 3 and the oblique interior end 5 can be produced, thus produce stress and concentrate. Within tiltedly the end 5 with flat in the end 3 link position bottom stringers 2 is set, effectively balance flat in the out-of-plane load in the end 3 and the oblique interior end 5. The knuckle of the end and outer bottom in the stringers decile of bottom because decile design can the every load of evenly distribute, proof stress effectively, reduce stress and concentrate, it is to increase the intensity of structure.

As shown in Figure 4, stringers 2 and longitudinalbulkhead 4 aligning structure bottom the present invention. This design is corresponding to such as designing at the bottom of Fig. 2 prior art horizontal duplex, if needing to arrange longitudinalbulkhead 4, ensure that bottom stringers 2 is connected with longitudinalbulkhead 4 contraposition, effectively and between longitudinalbulkhead, can vertically transmit load, although not in same plane, but there is effective support at the end in end peace in tiltedly both sides, concentrate so stress can not be produced. And, decile design can keep water bottom height constant, keeps the consistence of intensity.

Below for few water ballast VLCC oil carrier, by utilizing the analysis of finite element model, and the optimized choice to multiple design, illustrate that the present invention waits the advantage of the knuckle design of fraction inclination water bottom: the inside and outside end of inclination adopts Parallel Design, and angle of inclination A is 15 degree; The knuckle of the end and outer bottom in the stringers decile of bottom, the included angle B of bottom stringers and horizontal outer bottom is (180-A)/2=(180-15)/2=82.5 degree. Owing to water bottom adopts inclined design, the height D1 at the bottom of horizontal duplex is 3000mm, tilts the height D2=3000mm of water bottom.

Pointed by herein: wedged bottom and flat " knuckle ", not two straight line knuckle of narrow sense connects, but general reference comprising that two straight line connects, single circular arc excessively connects, multi straight connects, many circular sliding slopes etc. " knuckle " place details connection designs.

Pointed by herein:, the upper end points " coordinate is consistent " of knuckle place, the interior end and bottom stringers, the lower end points " coordinate is consistent " of outer bottom knuckle place and bottom stringers, not the numerical value of the three-dimensional coordinate of narrow sense is equal, but general reference is for meeting engineering-built needs, connect design along various details in positive and negative 100mm of A angle, horizontal direction or other angles.

The above; it is only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; any it is familiar with those skilled in the art in the technical scope of present disclosure; technical scheme and invention design thereof according to the present invention are equal to replacement or are changed, and all should be encompassed within protection scope of the present invention.

Claims

1. wait fraction to tilt water bottom boats and ships, comprise the end (3) in flat outer bottom (1) peace of the parallel setting of bottom of ship, it is characterised in that,

In described flat outer bottom (1) is peaceful, the end (3), is extended to topside direction by the oblique outer bottom (6) and the oblique interior end (5) connecting parallel setting respectively; Between the knuckle position of described flat outer bottom (1) and oblique outer bottom (6) and the described knuckle position putting down the interior end (3) and the oblique interior end (5), bottom stringers (2) is set;

And, described bottom stringers (2) divides the knuckle between described flat outer bottom (1) and oblique outer bottom (6) and at the described flat interior end (3) and the described oblique interior end (5) equally.

2. wait fraction to tilt water bottom boats and ships according to claim 1, it is characterised in that, the top of described bottom stringers (2) arranges longitudinalbulkhead (4).