CN107179173B - Novel gas holder aeroelastic model system - Google Patents
Novel gas holder aeroelastic model system Download PDFInfo
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- CN107179173B CN107179173B CN201710487738.9A CN201710487738A CN107179173B CN 107179173 B CN107179173 B CN 107179173B CN 201710487738 A CN201710487738 A CN 201710487738A CN 107179173 B CN107179173 B CN 107179173B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/08—Aerodynamic models
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a novel gas tank pneumatic elastic model system, which comprises a spliced cabinet body, wherein a central supporting cylinder is vertically arranged in the spliced cabinet body, a plurality of test sites are axially arranged on the central supporting cylinder, a piston assembly is sleeved outside the central supporting cylinder and is correspondingly arranged at any test site, and a floating guide piece is arranged between the piston assembly and the spliced cabinet body. The novel gas tank pneumatic elastic model system has the remarkable effects that the suspension state of the piston, the translational state during suspension and the lifting of the piston can be truly simulated; and when the gas tank in actual production is highly reduced and then is subjected to wind tunnel test aeroelastic model research, the test result is more accurate.
Description
Technical Field
The invention relates to a civil engineering wind tunnel test, in particular to a novel gas holder aeroelastic model system.
Background
The gas tank is a steel container for storing industrial and civil gas, and comprises a wet gas tank and a dry gas tank. The wet gas tank is of a sleeve type cylindrical structure sealed by water; the dry gas tank is a piston structure sealed with thin (dry) oil or flexible membrane. The bell jar, the tower and the piston of the gas holder are of movable structures, bear gas pressure and ensure good sealing performance, and the requirement on installation accuracy is high. The gas cabinet body is made of carbon steel and low alloy steel. The construction site connection modes comprise riveting, welding and high-strength bolt connection. The welding is generally performed by manual welding and CO 2 And (5) gas shielded welding. The roof trusses and roof panels are typically mounted with the aid of a central gantry. In the operation stage of the dry gas cabinet, the internal large-mass piston of the dry gas cabinet moves up and down along the inner side of the upright post of the cabinet body by air pressure support. In the wind tunnel test research of the gas tank gas-spring model, the gas tank gas-spring model is used forThe atmospheric pressure is below the piston, and the piston can not float. At present, most of aeroelastic model wind tunnel tests with traditional space structures adopt a node coupling treatment mode that the contact point of a piston and a cabinet body is locked or fastened; the method has great difference with the actual suspension state of the piston, the actual contact state of the piston and the cabinet body cannot be accurately simulated, and the accuracy of the test is difficult to ensure.
Disclosure of Invention
In order to solve the technical problems, the invention provides a novel gas tank pneumatic elastic model system.
The technical proposal is as follows:
a novel gas holder aeroelastic model system is characterized in that: including the concatenation formula cabinet body, this internal vertical center support section of thick bamboo that is equipped with of concatenation formula cabinet, this center support section of thick bamboo axial is equipped with a plurality of test sites, center support section of thick bamboo overcoat is equipped with piston assembly, this piston assembly corresponds to set up in arbitrary test site department, be equipped with the guide that floats between piston assembly and the concatenation formula cabinet body. By adopting the technical scheme, the traditional mode of directly connecting the piston assembly with the gas tank is avoided, the piston assembly is supported in the gas tank through the central supporting cylinder, the suspension state of the piston is simulated, the piston moves up and down through the floating guide piece, the lifting and the suspension of the piston under the real condition can be accurately simulated, and the accuracy of the test is ensured.
Preferably, the central support cylinder comprises a cylinder body, a piston support piece is arranged on the outer wall of the cylinder body, the piston support piece is detachably connected with any cylinder body corresponding to the test site, and the piston assembly falls on the piston support piece. The piston support piece is small and light and is convenient to assemble and disassemble.
Preferably, the outer wall of the cylinder is axially provided with a plurality of screw hole groups, the screw hole groups form the test sites, each screw hole group comprises at least 3 positioning screw holes, all positioning screw holes in the same screw hole group are circumferentially distributed on the outer wall of the cylinder, the piston supporting piece is a supporting bolt, and all positioning screw holes in the same screw hole group are respectively provided with the supporting bolt. Screw group in this design marks the specific position that the location needs the experiment on the one hand, on the other hand convenient and supporting bolt quick assembly disassembly.
Preferably, the lower end of the barrel body is annularly provided with at least 3 leveling support legs, each leveling support leg comprises a rib plate vertically arranged, the rib plates are connected with the outer wall of the barrel body, the lower edges of the rib plates are horizontally connected with a supporting bottom plate, and leveling bolts are arranged on the supporting bottom plate in a penetrating mode through vertical threads. The supporting bolt and the positioning screw hole can be quickly disassembled and assembled.
Preferably, the piston assembly comprises a piston support plate, a piston model is arranged above the piston support plate, the piston model comprises a model frame, a piston suspension backing plate is arranged between the model frame and the piston support plate and is fixed with the model frame, a rolling support piece is arranged on the upper surface of the piston support plate, the piston suspension backing plate falls on the rolling support piece, and the piston support plate is arranged at any test site. In the design scheme, the piston model falls on the piston supporting plate through the rolling supporting piece, and the piston translation is simulated during wind tunnel test research of the gas tank aeroelastic model.
Preferably, the rolling support member comprises a mounting seat body and support balls embedded in the mounting seat body in a rolling manner, the mounting seat body is fixed on a piston support plate, the support balls lift the piston suspension backing plate, and at least three rolling support members are circumferentially distributed on the piston support plate. The piston model is lifted by the support balls, so that the translational direction of the piston model is highly random, and the translational motion of the piston can be simulated more truly.
Preferably, the spliced cabinet body comprises at least two cylindrical brackets, the cylindrical brackets are spliced axially and sequentially to form a gas cabinet body frame, two adjacent cylindrical brackets are connected through a connecting piece, and a cabinet body outer skin is arranged on the periphery of the gas cabinet body frame;
the cabinet body outer skin comprises a plurality of aluminum plates, the aluminum plates are sequentially connected end to form the cabinet body outer skin, double-sided adhesive tape is attached to the gas cabinet body frame, and the aluminum plates are attached to the gas cabinet body frame through the double-sided adhesive tape.
By adopting the technical scheme, the gas cabinet body frame and the cabinet body outer skin are assembled and assembled, so that the gas cabinet body frame is convenient to transfer and transport, and after the gas cabinet body frame and the cabinet body outer skin are assembled, the connecting piece plays a role in stabilizing and connecting each section so as to ensure the stability and continuity of the gas cabinet body frame.
Preferably, the connecting piece comprises an upper stand column and a lower stand column which are butted along the same vertical direction, the lower end of the upper stand column and the upper end of the lower stand column are connected with the same connecting plate, the lower end of the upper stand column and the upper end of the lower stand column are provided with connecting bayonets matched with the connecting plate, the connecting plate is positioned in the connecting bayonets, the connecting plate is respectively connected with the upper stand column and the lower stand column through stand column fixing bolts, the upper stand column is connected with the cylindrical support above, and the lower stand column is connected with the cylindrical support below;
the cylindrical support comprises a plurality of circular frames which are horizontally arranged, the circular frames are distributed along the same vertical direction, the cylindrical support further comprises a plurality of vertical rods, the vertical rods are distributed along the central annular direction of the circular frames, the same vertical rods are connected with all the circular frames, the circular frames and the vertical rods are in cross connection to form a grid shape, the cylindrical support is connected with diagonal rods between grid nodes of the cylindrical support, the lower ends of the vertical rods extend downwards to form upper vertical columns, the upper ends of the vertical rods extend upwards to form lower vertical columns, and double-sided adhesive tapes are respectively attached to the circular frames, the vertical rods and the diagonal rods.
Preferably, the floating guide member comprises a fixing seat fixed on the piston assembly, an elastic member is arranged on the fixing seat towards the spliced cabinet body, and a guide roller is arranged on the elastic member and rolls along the vertical rod.
Preferably, the elastic piece comprises a piston rod horizontally penetrating through the fixing seat, a U-shaped clamp is arranged at one end of the piston rod, facing the spliced cabinet body, of the U-shaped clamp, the guide roller is arranged between two vertical parts of the U-shaped clamp, a pressure spring is sleeved on the piston rod between the fixing seat and the U-shaped clamp, a lock pin is arranged on the piston rod at the other side of the fixing seat, the vertical rod is located between the two vertical parts of the U-shaped clamp, and a rolling surface of the guide roller is attached to the vertical rod.
The beneficial effects are that: by adopting the novel gas tank pneumatic elastic model system, the suspension state of the piston, the translational state during suspension and the lifting of the piston can be truly simulated; and when the gas tank in actual production is highly reduced and then is subjected to wind tunnel test aeroelastic model research, the test result is more accurate.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a diagram showing the mounting relationship of the piston assembly b and the center support cylinder a;
FIG. 3 is a horizontal cross-sectional view of FIG. 1;
fig. 4 is a schematic structural view of the center support cylinder a;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a schematic view of the structure of the piston assembly b;
fig. 7 is a schematic view of the installation of the rolling support b4 on the piston support plate b 1;
fig. 8 is a schematic diagram showing the distribution of the rolling support b4 on the piston support plate b 1;
fig. 9 is a schematic structural view of the coupling c 3;
fig. 10 is a schematic structural view of the floating guide d 2;
fig. 11 is a top view of fig. 10.
Detailed Description
The invention is further described below with reference to examples and figures.
As shown in fig. 1 to 11, a novel gas tank pneumatic elastic model system comprises a spliced cabinet body c, wherein a central supporting cylinder a is vertically arranged in the spliced cabinet body c, a plurality of test sites are axially arranged on the central supporting cylinder a, a piston assembly b is sleeved outside the central supporting cylinder a, the piston assembly b is correspondingly arranged at any test site, and a floating guide piece d2 is arranged between the piston assembly b and the spliced cabinet body c.
The center support cylinder a comprises a cylinder body a1, a piston support piece a3 is arranged on the outer wall of the cylinder body a1, the piston support piece a3 is detachably connected with any cylinder body a1 corresponding to the test site, and the piston assembly b falls on the piston support piece a 3.
The outer wall of the cylinder body a1 is axially provided with a plurality of screw hole groups, the screw hole groups form the test sites, each screw hole group comprises at least 3 positioning screw holes a4, all the positioning screw holes a4 in the same screw hole group are distributed on the outer wall of the cylinder body a1 in a circumferential direction, the piston supporting piece a3 is a supporting bolt, and all the positioning screw holes a4 in the same screw hole group are respectively provided with the supporting bolt.
The lower end of the cylinder body a1 is annularly provided with at least 3 leveling support legs a2, each leveling support leg a2 comprises a rib plate a7 which is vertically arranged, each rib plate a7 is connected with the outer wall of the cylinder body a1, the lower edge of each rib plate a7 is horizontally connected with a supporting bottom plate a5, and leveling bolts a6 are vertically threaded on the supporting bottom plates a5 in a penetrating mode.
The piston assembly b comprises a piston support plate b1, a piston model b2 is arranged above the piston support plate b1, a rolling support piece b4 is arranged on the upper surface of the piston support plate b1, the piston model b2 falls on the rolling support piece b4, and the piston support plate b1 falls on the support bolt.
The piston model b2 comprises a model frame b8, a piston suspension base plate b3 is arranged between the model frame b8 and the piston support plate b1, the piston suspension base plate b3 is fixed with the model frame b8, the piston suspension base plate b3 falls on the rolling support piece b4, the piston support plate b1, the piston suspension base plate b3 and the model frame b8 are all annular, the annular centers of the piston support plate b1, the piston suspension base plate b3 and the model frame b8 coincide, and the piston support plate b1, the piston suspension base plate b3 and the model frame b8 are sleeved on the cylinder body a 1.
The rolling support piece b4 comprises a mounting base body b5 and support balls b6 which are embedded in the mounting base body b5 in a rolling mode, the mounting base body b5 is fixed on a piston support plate b1, the support balls b6 lift the piston suspension base plate b3, and at least three rolling support pieces b4 are distributed on the piston support plate b1 in a circumferential direction.
The piston support plate b1 is provided with a support member mounting hole corresponding to the rolling support member b4, the mounting base b5 is provided with a horizontal support lug b7, the mounting base b5 is sunk into the support member mounting hole downwards, and the horizontal support lug b7 is attached to the upper surface of the piston support plate b1 and fixedly connected with the upper surface of the piston support plate.
The spliced cabinet body c comprises at least two cylindrical supports c1, the cylindrical supports c1 are spliced axially and sequentially to form a gas cabinet body frame c2, two adjacent cylindrical supports c1 are connected through a connecting piece c3, and a cabinet body cover c9 is arranged on the periphery of the gas cabinet body frame c 2;
the cabinet body outer cover c9 comprises a plurality of aluminum plates, the aluminum plates are sequentially connected end to form the cabinet body outer cover c9, double-sided adhesive tapes are attached to the gas cabinet body frame c2, and the aluminum plates are attached to the gas cabinet body frame c2 through the double-sided adhesive tapes.
The connecting piece c3 comprises an upper upright post c4 and a lower upright post c5 which are butted along the same vertical direction, the lower end of the upper upright post c4 and the upper end of the lower upright post c5 are connected with the same connecting plate c6, the lower end of the upper upright post c4 and the upper end of the lower upright post c5 are provided with connecting bayonets matched with the connecting plate c6, the connecting plate c6 is positioned in the connecting bayonets, the connecting plate c6 is connected with the upper upright post c4 and the lower upright post c5 through upright post fixing bolts respectively, the upper upright post c4 is connected with the cylindrical support c1 above, and the lower upright post c5 is connected with the cylindrical support c1 below;
the cylindrical support c1 comprises a plurality of horizontally arranged circular frames c7, a plurality of circular frames c7 are distributed along the same vertical direction, the cylindrical support c1 further comprises a plurality of vertical rods c8, a plurality of vertical rods c8 are distributed along the central annular direction of the circular frames c7, the same vertical rods c8 are connected with all the circular frames c7, the circular frames c7 and the vertical rods c8 are in cross connection to form a grid-shaped cylindrical support c1, diagonal rods c10 are connected between grid nodes of the cylindrical support c1, the lower ends of the vertical rods c8 extend downwards to form upper vertical columns c4, the upper ends of the vertical rods c8 extend upwards to form lower vertical columns c5, and the circular frames c7, the vertical rods c8 and the diagonal rods c10 are respectively attached with double-sided adhesive tapes.
The floating guide piece d2 comprises a fixed seat d3 fixed on the piston assembly b, an elastic piece is arranged on the fixed seat d3 towards the spliced cabinet c, a guide roller d5 is arranged on the elastic piece, and the guide roller d5 rolls along the vertical rod c 8.
The elastic piece comprises a piston rod d4 horizontally penetrating through the fixed seat d3, a U-shaped clamp d7 is arranged at one end of the piston rod d4, which faces the spliced cabinet body c, a guide roller d5 is arranged between two vertical parts of the U-shaped clamp d7, a pressure spring d6 is sleeved on the piston rod d4 between the fixed seat d3 and the U-shaped clamp d7, a lock pin is arranged on the piston rod d4 at the other side of the fixed seat d3, a vertical rod c8 is positioned between the two vertical parts of the U-shaped clamp d7, and a rolling surface of the guide roller d5 is attached to the vertical rod c 8.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (1)
1. A novel gas holder aeroelastic model system is characterized in that: the novel combined type intelligent cabinet temperature measuring device comprises a spliced cabinet body (c), wherein a central supporting cylinder (a) is vertically arranged in the spliced cabinet body (c), a plurality of test sites are axially arranged in the central supporting cylinder (a), a piston assembly (b) is sleeved outside the central supporting cylinder (a), the piston assembly (b) is correspondingly arranged at any test site, and a floating guide piece (d 2) is arranged between the piston assembly (b) and the spliced cabinet body (c);
the center support cylinder (a) comprises a cylinder body (a 1), a piston support (a 3) is arranged on the outer wall of the cylinder body (a 1), the piston support (a 3) is detachably connected with any cylinder body (a 1) corresponding to the test site, and the piston assembly (b) falls on the piston support (a 3);
a plurality of screw hole groups are axially arranged on the outer wall of the cylinder body (a 1), the screw hole groups form the test sites, each screw hole group comprises at least 3 positioning screw holes (a 4), all the positioning screw holes (a 4) in the same screw hole group are circumferentially distributed on the outer wall of the cylinder body (a 1), the piston supporting piece (a 3) is a supporting bolt, and the supporting bolts are respectively arranged in all the positioning screw holes (a 4) in the same screw hole group;
at least 3 leveling support legs (a 2) are arranged at the lower end of the cylinder body (a 1) in a circumferential direction, each leveling support leg (a 2) comprises a rib plate (a 7) which is vertically arranged, each rib plate (a 7) is connected with the outer wall of the cylinder body (a 1), the lower edge of each rib plate (a 7) is horizontally connected with a supporting bottom plate (a 5), and leveling bolts (a 6) are vertically threaded on the supporting bottom plates (a 5);
the piston assembly (b) comprises a piston supporting plate (b 1), a piston model (b 2) is arranged above the piston supporting plate (b 1), the piston model (b 2) comprises a model frame (b 8), a piston suspension base plate (b 3) is arranged between the model frame (b 8) and the piston supporting plate (b 1), the piston suspension base plate (b 3) is fixed with the model frame (b 8), a rolling supporting piece (b 4) is arranged on the upper surface of the piston supporting plate (b 1), the piston suspension base plate (b 3) falls on the rolling supporting piece (b 4), and the piston supporting plate (b 1) is arranged at any test site;
the rolling support (b 4) comprises a mounting base (b 5) and support balls (b 6) which are embedded in the mounting base (b 5) in a rolling manner, the mounting base (b 5) is fixed on a piston support plate (b 1), the support balls (b 6) lift the piston suspension base plate (b 3), and at least three rolling support (b 4) are distributed on the piston support plate (b 1) in a circumferential direction;
the spliced type cabinet body (c) comprises at least two cylindrical supports (c 1), the cylindrical supports (c 1) are spliced axially and sequentially to form a gas cabinet body frame (c 2), two adjacent cylindrical supports (c 1) are connected through a connecting piece (c 3), and a cabinet body outer skin (c 9) is arranged on the periphery of the gas cabinet body frame (c 2);
the cabinet body outer skin (c 9) comprises a plurality of aluminum plates, the aluminum plates are sequentially connected end to form the cabinet body outer skin (c 9), double-sided adhesive tapes are attached to the gas cabinet body frame (c 2), and the aluminum plates are attached to the gas cabinet body frame (c 2) through the double-sided adhesive tapes;
the connecting piece (c 3) comprises an upper stand column (c 4) and a lower stand column (c 5) which are in butt joint along the same vertical direction, the lower end of the upper stand column (c 4) and the upper end of the lower stand column (c 5) are connected with the same connecting plate (c 6), connecting bayonets matched with the connecting plate (c 6) are arranged at the lower end of the upper stand column (c 4) and the upper end of the lower stand column (c 5), the connecting plate (c 6) is positioned in the connecting bayonets, the connecting plate (c 6) is connected with the upper stand column (c 4) and the lower stand column (c 5) through stand column fixing bolts respectively, the upper stand column (c 4) is connected with the cylindrical support (c 1) above, and the lower stand column (c 5) is connected with the cylindrical support (c 1) below.
The cylindrical support (c 1) comprises a plurality of horizontally arranged circular frames (c 7), the circular frames (c 7) are distributed along the same vertical direction, the cylindrical support (c 1) further comprises a plurality of vertical rods (c 8), the vertical rods (c 8) are distributed along the central circumferential direction of the circular frames (c 7), the same vertical rods (c 8) are connected with all the circular frames (c 7), the circular frames (c 7) and the vertical rods (c 8) are in cross connection to form a latticed cylindrical support (c 1), diagonal rods (c 10) are connected between lattice nodes of the cylindrical support (c 1), the lower ends of the vertical rods (c 8) downwards extend to form upper vertical columns (c 4), the upper ends of the vertical rods (c 8) upwards extend to form lower vertical columns (c 5), and the circular frames (c 7), the vertical rods (c 8) and the diagonal rods (c 10) are respectively adhered with double-sided adhesive tapes;
the floating guide piece (d 2) comprises a fixed seat (d 3) fixed on the piston assembly (b), an elastic piece is arranged on the fixed seat (d 3) towards the spliced cabinet body (c), a guide roller (d 5) is arranged on the elastic piece, and the guide roller (d 5) rolls along the upright (c 8);
the elastic piece comprises a piston rod (d 4) horizontally penetrating through the fixed seat (d 3), a U-shaped clamp (d 7) is arranged at one end of the spliced cabinet body (c) in the direction of the piston rod (d 4), a guide roller (d 5) is arranged between two vertical parts of the U-shaped clamp (d 7), a pressure spring (d 6) is sleeved on the piston rod (d 4) between the fixed seat (d 3) and the U-shaped clamp (d 7), a lock pin is arranged on the piston rod (d 4) at the other side of the fixed seat (d 3), a vertical rod (c 8) is arranged between the two vertical parts of the U-shaped clamp (d 7), and a rolling surface of the guide roller (d 5) is attached to the vertical rod (c 8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710487738.9A CN107179173B (en) | 2017-06-23 | 2017-06-23 | Novel gas holder aeroelastic model system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710487738.9A CN107179173B (en) | 2017-06-23 | 2017-06-23 | Novel gas holder aeroelastic model system |
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| CN107179173A CN107179173A (en) | 2017-09-19 |
| CN107179173B true CN107179173B (en) | 2023-06-06 |
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| EP0350455A2 (en) * | 1988-05-06 | 1990-01-10 | Ente per le nuove tecnologie, l'energia e l'ambiente (ENEA) | A container for gas in which the pressure is maintained constant when the amount, therein contained, changes, specifically suited for accumulating biogas generated from waste waters and biological sludges |
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| JP2013061071A (en) * | 2012-11-26 | 2013-04-04 | Nippon Steel & Sumitomo Metal Corp | Suppressing method for piston inclination in gas holder |
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| CN107179173A (en) | 2017-09-19 |
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