Combined vibration reduction base and mounting method

Abstract

The combined vibration reduction base comprises an upper support and a lower base which are connected through a fastener, a damping rubber pad is arranged between the contact surfaces of the upper base and the lower base, the upper support is provided with a central hole, and sound source equipment penetrates through the central hole and is connected and fastened with the upper support. The upper base and the lower base are each of a two-half splicing structure, a combined structure is adopted, connection and assembly are achieved through bolts, rapid disassembly and assembly can be achieved, the overall weight is reduced, the cost is reduced, and meanwhile the good vibration reduction effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of acoustic design of ship structures, and in particular to a combined vibration-damping base and an installation method thereof. Background Art

[0002] Modern ships have increasingly higher requirements for vibration and noise. In ship design, effective vibration reduction measures must be taken for sound source equipment to reduce the transmission of equipment vibration from the mounting base to the hull structure, and reduce the vibration noise of the ship cabin and underwater radiation noise.

[0003] As a widely existing sound source equipment on board, pump units are the vibration and noise source that must be addressed in ship design. In many cases, due to overall resource and cost constraints, only single-stage vibration isolation is adopted, which has limited effect on equipment vibration reduction. If the foundation design can be optimized with less overall resources (weight and cost), the vibration reduction effect of the foundation can be further improved, which will be very beneficial to improving the vibration and noise environment of the ship. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a combined vibration-damping base and an installation method for the above-mentioned problems, so as to further improve the vibration-damping effect of the base while consuming less overall resources (weight and cost).

[0005] The embodiment of the present application is implemented as follows:

[0006] An embodiment of the present application provides a combined vibration-damping base, characterized in that it includes an upper support and a lower base connected by fasteners, a damping rubber pad is provided between the contact surfaces of the upper support and the lower base, the upper support is provided with a central opening, and the sound source device passes through the central opening and is fastened to the upper support.

[0007] In some optional embodiments, the upper support is welded by an upper top plate, an upper bottom plate, an upper belly plate and a plurality of upper elbow plates to form a metal plate frame structure; the lower base is welded by a lower top plate, a lower belly plate and a plurality of lower elbow plates to form a metal plate frame structure.

[0008] In some optional embodiments, the upper support is composed of a front half support with symmetrical openings and a rear half support connected by fasteners to form the complete central opening.

[0009] In some optional embodiments, the lower base includes a left half base and a right half base, and the left half base and the right half base are symmetrically welded and fixed to the hull structure, and the top is connected to the upper support.

[0010] In some optional embodiments, the multiple upper brackets of the upper support are evenly spaced, and the multiple upper brackets are equidistantly arranged on both sides with the upper bracket welded at the open joint as a reference; the multiple lower brackets of the lower support are evenly spaced, and the multiple lower brackets are symmetrically arranged in pairs with the open joint of the upper support as the center of symmetry.

[0011] In some optional implementation schemes, the upper support and the lower base are made of steel or aluminum alloy, and the plate thickness of different materials is determined based on the plate thickness selection principle.

[0012] In some optional embodiments, when the upper support and the lower base are made of steel, the thickness selection principle is as follows:

[0013] A1. When the weight of the sound source equipment is ≤100kg, the thickness of the upper top plate t1 is 5mm, the thickness of the upper bottom plate t2 is 6mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 5mm, and the thickness of other plates is 4mm;

[0014] A2. When the weight of the sound source equipment is 100kg to 300kg, the thickness of the upper top plate t1 is 6mm, the thickness of the upper bottom plate t2 is 7mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 6mm, and the thickness of other plates is 5mm;

[0015] A3. When the weight of the sound source equipment is 300kg-500kg, the thickness of the upper top plate t1 is 8mm, the thickness of the upper bottom plate t2 is 10mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 8mm, and the thickness of other plates is 6mm;

[0016] A4. When the weight of the sound source equipment is 500kg to 1000kg, the thickness of the upper top plate t1 is 10mm, the thickness of the upper bottom plate t2 is 12mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 10mm, and the thickness of other plates is 8mm;

[0017] A5. When the weight of the sound source equipment is 1000kg to 2000kg, the thickness of the upper top plate t1 is 12mm, the thickness of the upper bottom plate t2 is 14mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 10mm, and the thickness of other plates is 10mm;

[0018] A6. When the weight of the sound source equipment is 2000kg to 5000kg, the thickness of the upper top plate t1 is 16mm, the thickness of the upper bottom plate t2 is 18mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 12mm, and the thickness of other plates is 12mm;

[0019] A7. When the weight of the sound source equipment is ≥5000kg, the thickness of the upper top plate t1 is 18mm, the thickness of the upper bottom plate t2 is 20mm, the thickness of the upper bracket plate t3 welded at the upper support opening is 14mm, and the thickness of other plates are all 14mm.

[0020] In some optional implementation schemes, when the upper support and the lower base are made of aluminum alloy, the thickness selection principle is as follows:

[0021] B1. When the weight of the sound source equipment is ≤100kg, the thickness of the upper top plate t1 is 6mm~8mm, the thickness of the upper bottom plate t2 is 7mm~9mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 6mm~8mm, and the thickness of other plates is 5mm~7mm;

[0022] B2. When the weight of the sound source equipment is 100kg to 300kg, the thickness of the upper top plate t1 is 7mm to 9mm, the thickness of the upper bottom plate t2 is 8mm to 10mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 7mm to 9mm, and the thickness of other plates is 6mm to 8mm;

[0023] B3. When the weight of the sound source equipment is 300kg to 500kg, the thickness of the upper top plate t1 is 9mm to 11mm, the thickness of the upper bottom plate t2 is 11mm to 13mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 9mm to 11mm, and the thickness of other plates is 7mm to 9mm;

[0024] B4. When the weight of the sound source equipment is 500kg to 1000kg, the thickness of the upper top plate t1 is 11mm to 13mm, the thickness of the upper bottom plate t2 is 13mm to 15mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 11mm to 13mm, and the thickness of other plates is 9mm to 11mm;

[0025] B5. When the weight of the sound source equipment is 1000kg to 2000kg, the thickness of the upper top plate t1 is 13mm to 15mm, the thickness of the upper bottom plate t2 is 15mm to 17mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 11mm to 13mm, and the thickness of other plates is 11mm to 13mm;

[0026] B6. When the weight of the sound source equipment is 2000kg to 5000kg, the thickness of the upper top plate t1 is 17mm to 19mm, the thickness of the upper bottom plate t2 is 19mm to 21mm, the thickness of the upper bracket plate t3 welded at the upper support opening is 13mm to 15mm, and the thickness of other plates is 13mm to 15mm;

[0027] B7. When the weight of the sound source equipment is ≥5000kg, the thickness of the upper top plate t1 is 19mm~21mm, the thickness of the upper bottom plate t2 is 21mm~23mm, the thickness of the upper bracket plate t3 welded at the upper support opening is 15mm~17mm, and the thickness of other plates are all 15mm~17mm.

[0028] In some optional embodiments, the spacing between the webs on both sides of the upper support and the webs on both sides of the lower support on the same side is 50mm≤h1≤150mm; taking the upper bracket welded at the open joint as the center, the two lower brackets closest to the above center on the lower support are spaced apart from the center by 50mm≤h2≤150mm; the spacing between the remaining groups of lower brackets of the lower support and the corresponding upper brackets is 50mm≤h3≤150mm.

[0029] A method for installing a combined vibration-damping base, characterized in that it comprises the following steps:

[0030] Step a, welding the left half base and the right half base of the lower support to the hull structure according to positioning, then hoisting the front half support of the upper support above the lower support, padding a plurality of damping rubber pads between the upper support and the lower support, and fastening the front half support to the lower support with bolts;

[0031] Step b, hoisting the sound source device to the opening of the front half support, then hoisting the rear half support to the top of the lower support, padding a plurality of damping rubber pads between the rear half support and the lower support, respectively connecting the rear half support to the front half support and the lower support with bolts, and then fastening the sound source device to the upper support with bolts;

[0032] Step c, loosen the bolts connecting the upper support and the lower support to make them in a free state, measure the height of the damping rubber pad in this state, and then tighten the bolts while measuring the height of the damping rubber pad to ensure that the compression of the damping rubber pad is 4% to 6%, and complete the assembly of the combined vibration reduction base.

[0033] The beneficial effects of the present application are as follows: a combined vibration-damping base and installation method provided by the present application fully consider the installation, maintenance and servicing requirements of the sound source equipment, the upper support is assembled by bolt connection, and can be quickly disassembled and assembled; the overall metal welded frame structure reduces the overall resource (weight and cost) consumption, has good vibration-damping performance, and has a vibration-damping effect of 3 to 15dB in the full frequency band, of which the vibration-damping effect in the high frequency band can reach more than 15dB; at the same time, the plate thickness can be adaptively modified according to the size, weight and other parameters of the sound source equipment, and has wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is a front view of the installation of the embodiment of the present application;

[0036] Figure 2 This is an installation side view of an embodiment of the present application;

[0037] Figure 3 A top view of an upper support of an embodiment of the present application;

[0038] Figure 4 A top view of the lower support of an embodiment of the present application;

[0039] Figure 5 A schematic diagram of the structure of a vibration-damping base according to an embodiment of the present application;

[0040] Figure 6 This is a schematic diagram of the connection between the upper support and the lower support of an embodiment of the present application. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0049] Many sound source equipment on board, such as pumps, are waist-mounted. The size of the lower pump body is too large, far exceeding the size of the opening that can be opened on the base panel. Conventional base design cannot achieve vibration reduction. The improved and optimized design of this type of base needs to take into account the installation, maintenance and maintenance requirements of the pump group, and also have a certain vibration reduction function.

[0050] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, based on this, the present invention proposes a combined vibration-damping base, including an upper support 1 and a lower base 2 connected by fasteners, a damping rubber pad 3 is provided between the contact surfaces of the upper support and the lower base, the upper support is provided with a central opening 4, and a sound source device 5 passes through the central opening and is fastened to the upper support.

[0051] The upper support is welded by an upper top plate 6, an upper bottom plate 7, an upper web plate 8 and a plurality of upper toggle plates 9 to form a metal plate frame structure; the lower base is welded by a lower top plate 10, a lower web plate 11 and a plurality of lower toggle plates 12 to form a metal plate frame structure.

[0052] like Figure 3 As shown, the upper support is composed of a front half support 13 and a rear half support 14 with symmetrical openings connected by fasteners to form a complete central opening, and the fasteners can be bolts.

[0053] like Figure 4 As shown, the lower base includes a left half base 15 and a right half base 16. The left half base and the right half base are symmetrically welded and fixed to the hull structure 17, and the top is connected to the upper support.

[0054] The combined vibration-damping base has a compact structure and can be quickly disassembled and installed. At the same time, the welded metal plate frame structure is light in weight and low in cost.

[0055] The multiple upper brackets of the upper support are evenly spaced, and the multiple upper brackets are equidistantly arranged on both sides with the upper bracket welded at the open joint as a reference; the multiple lower brackets of the lower support are evenly spaced, and the multiple lower brackets are symmetrically arranged in pairs with the open joint of the upper support as the symmetry center.

[0056] The upper support and the lower base are made of steel or aluminum alloy, and the plate thickness of different materials is determined based on the plate thickness selection principle.

[0057] When the upper support and the lower base are made of steel, the plate thickness selection principles are as shown in Table 1:

[0058] Table 1 Principles for selecting the thickness of the combined vibration damping base

[0059]

[0060]

[0061] Among them: t1 is the thickness of the upper top plate, t2 is the thickness of the upper bottom plate, and t3 is the thickness of the upper bracket welded at the butt joint of the upper support opening.

[0062] When the upper support and the lower base are made of steel, the thickness of the above plates is selected to be 1 to 3 mm higher than that in Table 1 above.

[0063] According to the size, weight and other parameters of the sound source equipment, the corresponding plate thickness can be selected according to the parameters in Table 1 for adaptive modification.

[0064] In order to ensure that the base has a better vibration reduction effect, the spacing between the base web and the bracket also needs to be specifically designed: the spacing between the webs on both sides of the upper support and the webs on both sides of the lower support on the same side is 50mm≤h1≤150mm; with the upper bracket welded at the open joint as the center, the spacing between the two lower brackets closest to the above center on the lower support and the center is 50mm≤h2≤150mm; the spacing between the remaining groups of lower brackets of the lower support and the corresponding upper brackets is 50mm≤h3≤150mm.

[0065] The above-mentioned combined vibration reduction base has good vibration reduction performance, with a vibration reduction effect of 3 to 15dB in the full frequency band, wherein the vibration reduction effect in the high frequency band can reach more than 15dB.

[0066] Example 1

[0067] When installing the above-mentioned combined vibration-damping base, the installation sequence is as follows:

[0068] 1. Install the lower support: first weld the left and right half bases of the lower support to the hull structure according to positioning;

[0069] 2. Install the upper support: hang the front half of the upper support above the lower support, place multiple damping rubber pads between the upper support and the lower support, and fasten the front half of the support to the lower support with bolts;

[0070] 3. Assemble the upper support: hoist the source equipment to the opening of the front half support, then hoist the rear half support to the top of the lower support, place multiple damping rubber pads between the rear half support and the lower support, and connect the rear half support to the front half support and the lower support with bolts;

[0071] 4. Install the sound source equipment: fasten the sound source equipment to the upper support with bolts;

[0072] 5. Adjust the tightness of the connecting bolts of the upper and lower supports: loosen the bolts to make them free, measure the height of the damping rubber pad in this state, and then tighten the bolts while measuring the height of the damping rubber pad to ensure that the compression of the damping rubber pad is 4% to 6%, and complete the assembly of the combined vibration reduction base.

[0073] The above is only a preferred embodiment of the present intellectual achievement, but the present intellectual achievement should not be limited to the contents disclosed in the embodiment and the accompanying drawings. All equivalents or modifications completed without departing from the spirit disclosed in the present invention fall within the scope of protection of the present invention.

Claims

1. A combined vibration-damping base, characterized in that: It comprises an upper support and a lower base connected by fasteners, a damping rubber pad is arranged between the contact surfaces of the upper support and the lower base, the upper support is provided with a central opening, and the sound source device passes through the central opening and is connected and fastened to the upper support.

2. A combined vibration-damping base according to claim 1, characterized in that: The upper support is welded by an upper top plate, an upper bottom plate, an upper belly plate and a plurality of upper toggle plates to form a metal plate frame structure; the lower base is welded by a lower top plate, a lower belly plate and a plurality of lower toggle plates to form a metal plate frame structure.

3. A combined vibration-damping base according to claim 2, characterized in that: The upper support is composed of a front half support and a rear half support provided with symmetrical openings connected by fasteners to form a complete central opening.

4. A combined vibration-damping base according to claim 3, characterized in that: The lower base comprises a left half base and a right half base. The left half base and the right half base are symmetrically welded and fixed on the hull structure, and the top is connected to the upper support.

5. The combined vibration-damping base according to claim 4, characterized in that: The multiple upper brackets of the upper support are evenly spaced, and the multiple upper brackets are equidistantly arranged on both sides with the upper bracket welded at the open joint as a reference; the multiple lower brackets of the lower support are evenly spaced, and the multiple lower brackets are symmetrically arranged in pairs with the open joint of the upper support as the symmetry center.

6. A combined vibration-damping base according to claim 5, characterized in that: The upper support and the lower base are made of steel or aluminum alloy, and the plate thickness of different materials is determined based on the plate thickness selection principle.

7. The combined vibration-damping base according to claim 6, characterized in that: When the upper support and the lower base are made of steel, the thickness selection principles are as follows: A1. When the weight of the sound source equipment is ≤100kg, the thickness of the upper top plate t1 is 5mm, the thickness of the upper bottom plate t2 is 6mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 5mm, and the thickness of other plates is 4mm; A2. When the weight of the sound source equipment is 100kg to 300kg, the thickness of the upper top plate t1 is 6mm, the thickness of the upper bottom plate t2 is 7mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 6mm, and the thickness of other plates is 5mm; A3. When the weight of the sound source equipment is 300kg-500kg, the thickness of the upper top plate t1 is 8mm, the thickness of the upper bottom plate t2 is 10mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 8mm, and the thickness of other plates is 6mm; A4. When the weight of the sound source equipment is 500kg to 1000kg, the thickness of the upper top plate t1 is 10mm, the thickness of the upper bottom plate t2 is 12mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 10mm, and the thickness of other plates is 8mm; A5. When the weight of the sound source equipment is 1000kg to 2000kg, the thickness of the upper top plate t1 is 12mm, the thickness of the upper bottom plate t2 is 14mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 10mm, and the thickness of other plates is 10mm; A6. When the weight of the sound source equipment is 2000kg to 5000kg, the thickness of the upper top plate t1 is 16mm, the thickness of the upper bottom plate t2 is 18mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 12mm, and the thickness of other plates is 12mm; A7. When the weight of the sound source equipment is ≥5000kg, the thickness of the upper top plate t1 is 18mm, the thickness of the upper bottom plate t2 is 20mm, the thickness of the upper bracket plate t3 welded at the upper support opening is 14mm, and the thickness of other plates are all 14mm.

8. A combined vibration-damping base according to claim 6 or 7, characterized in that: When the upper support and the lower base are made of aluminum alloy, the thickness selection principles are as follows: B1. When the weight of the sound source equipment is ≤100kg, the thickness of the upper top plate t1 is 6mm~8mm, the thickness of the upper bottom plate t2 is 7mm~9mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 6mm~8mm, and the thickness of other plates is 5mm~7mm; B2. When the weight of the sound source equipment is 100kg to 300kg, the thickness of the upper top plate t1 is 7mm to 9mm, the thickness of the upper bottom plate t2 is 8mm to 10mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 7mm to 9mm, and the thickness of other plates is 6mm to 8mm; B3. When the weight of the sound source equipment is 300kg to 500kg, the thickness of the upper top plate t1 is 9mm to 11mm, the thickness of the upper bottom plate t2 is 11mm to 13mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 9mm to 11mm, and the thickness of other plates is 7mm to 9mm; B4. When the weight of the sound source equipment is 500kg to 1000kg, the thickness of the upper top plate t1 is 11mm to 13mm, the thickness of the upper bottom plate t2 is 13mm to 15mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 11mm to 13mm, and the thickness of other plates is 9mm to 11mm; B5. When the weight of the sound source equipment is 1000kg to 2000kg, the thickness of the upper top plate t1 is 13mm to 15mm, the thickness of the upper bottom plate t2 is 15mm to 17mm, the thickness of the upper bracket plate t3 welded at the butt joint of the upper support opening is 11mm to 13mm, and the thickness of other plates is 11mm to 13mm; B6. When the weight of the sound source equipment is 2000kg to 5000kg, the thickness of the upper top plate t1 is 17mm to 19mm, the thickness of the upper bottom plate t2 is 19mm to 21mm, the thickness of the upper bracket plate t3 welded at the upper support opening is 13mm to 15mm, and the thickness of other plates is 13mm to 15mm; B7. When the weight of the sound source equipment is ≥5000kg, the thickness of the upper top plate t1 is 19mm~21mm, the thickness of the upper bottom plate t2 is 21mm~23mm, the thickness of the upper bracket plate t3 welded at the upper support opening is 15mm~17mm, and the thickness of other plates are all 15mm~17mm.

9. The combined vibration-damping base according to claim 8, characterized in that: The spacing between the webs on both sides of the upper support and the webs on both sides of the lower support on the same side is 50mm≤h1≤150mm; taking the upper bracket welded at the open joint as the center, the spacing between the two lower brackets closest to the above center on the lower support and the center is 50mm≤h2≤150mm; the spacing between the remaining groups of lower brackets of the lower support and the corresponding upper brackets is 50mm≤h3≤150mm.

10. The method for installing the combined vibration-damping base according to claim 5 is characterized in that: The steps include: Step a, welding the left half base and the right half base of the lower support to the hull structure according to positioning, then hoisting the front half support of the upper support above the lower support, padding a plurality of damping rubber pads between the upper support and the lower support, and fastening the front half support to the lower support with bolts; Step b, hoisting the sound source device to the opening of the front half support, then hoisting the rear half support to the top of the lower support, padding a plurality of damping rubber pads between the rear half support and the lower support, respectively connecting the rear half support to the front half support and the lower support with bolts, and then fastening the sound source device to the upper support with bolts; Step c, loosen the bolts connecting the upper support and the lower support to make them in a free state, measure the height of the damping rubber pad in this state, and then tighten the bolts while measuring the height of the damping rubber pad to ensure that the compression of the damping rubber pad is 4% to 6%, and complete the assembly of the combined vibration reduction base.

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