Cab and locomotive

Abstract

The invention provides a cab and a locomotive. The cab comprises a plurality of wall plates and decoration plates. The inner space of the cab is defined by the plurality of wall plates; the wall plates comprise a first wall plate and a second wall plate, the first wall plate comprises a top cover of the cab, and the second wall plate comprises a floor of the cab; a damping slurry layer, a first sound absorption material layer and a first sound insulation plate are sequentially arranged on the inner side of the first wall plate; a second sound insulation plate, a second sound absorption material layer and a third sound insulation plate are sequentially arranged on the inner side of the second wall plate; the decoration plate is arranged on the inner side of the wall plate, the decoration plate is provided with an appearance surface opposite to the arranged wall plate, and the shape of the appearance surface is designed according to a calculation result of an acoustic cavity mode of the cab through an acoustic simulation analysis method so as to reduce noise resonance of the cab; the decoration plate is at least arranged on the inner side of the first sound insulation plate of the top cover.

Description

Technical Field

[0001] The present disclosure relates to the technical field of noise control in a locomotive cab, and in particular to a cab and a locomotive. Background Art

[0002] During the operation of the locomotive, the noise generated by equipment operation and wheel-rail contact seriously affects the working environment in the driver's cab. Long-term exposure to a high-noise environment not only affects the driver's hearing health, but may also cause fatigue and increase driving risks. The current design for noise control in the locomotive driver's cab simply adds sound insulation or sound-absorbing materials, which is poorly targeted and inefficient. Therefore, developing an effective and systematic noise control method to improve the comfort and safety of the locomotive driver's cab has become an important issue that needs to be urgently addressed in related fields. Summary of the invention

[0003] A main purpose of the present disclosure is to overcome at least one of the defects of the above-mentioned prior art and provide a driver's cab that can effectively and systematically achieve noise reduction effect.

[0004] To achieve the above objectives, the present disclosure adopts the following technical solutions:

[0005] According to one aspect of the present disclosure, a driver's cab is provided, which includes a plurality of wall panels and a decoration panel; the plurality of wall panels enclose an interior space of the driver's cab; the wall panels include a first wall panel and a second wall panel, the first wall panel includes a roof of the driver's cab, and the second wall panel includes a floor of the driver's cab; a damping slurry layer, a first sound absorbing material layer, and a first sound insulation board are sequentially arranged on the inner side of the first wall panel; a second sound insulation board, a second sound absorbing material layer, and a third sound insulation board are sequentially arranged on the inner side of the second wall panel; the decoration panel is arranged on the inner side of the wall panel, the decoration panel has an appearance surface facing away from the arranged wall panel, and the shape of the appearance surface is designed based on the calculation result of the acoustic cavity mode of the driver's cab by an acoustic simulation analysis method, so as to reduce the noise resonance of the driver's cab; the decoration panel is at least arranged on the inner side of the first sound insulation board of the roof.

[0006] According to one of the embodiments of the present disclosure, the first wall panel also includes a rear wall of the driver's cab.

[0007] According to one embodiment of the present disclosure, the decoration board is also arranged on the inner side of the first sound insulation board of the rear wall.

[0008] According to one embodiment of the present disclosure, the decoration board is also arranged on the inner side of the third sound insulation board of the floor.

[0009] According to one embodiment of the present disclosure, the wall panel includes a third wall panel, and the third wall panel includes a front wall and a side wall of the driver's cab; a third sound absorbing material layer is arranged on the inner side of the third wall panel.

[0010] According to one embodiment of the present disclosure, the finishing board is further disposed inside the third sound-absorbing material layer of the front wall, and / or the finishing board is further disposed inside the third sound-absorbing material layer of the side wall.

[0011] According to one embodiment of the present disclosure, the acoustic simulation analysis method includes a finite element simulation method for acoustic cavity modes.

[0012] According to one embodiment of the present disclosure, the acoustic simulation analysis method is implemented via the Fluent Acoustic module.

[0013] Another main object of the present disclosure is to overcome at least one defect of the above-mentioned prior art, and to provide a locomotive adopting the above-mentioned driver's cab.

[0014] To achieve the above object, the present disclosure adopts the following technical solutions:

[0015] According to another aspect of the present disclosure, there is provided a locomotive including the driver's cab proposed by the present disclosure and described in the above embodiments.

[0016] According to one embodiment of the present disclosure, the locomotive further includes: a wheel set assembly disposed below the floor of the driver's cab; and / or a machinery compartment disposed outside the rear wall of the driver's cab; and / or a horn disposed outside the top cover of the driver's cab.

[0017] As can be seen from the above technical solutions, the advantages and positive effects of the driver's cab and the locomotive proposed by the present disclosure are as follows:

[0018] The driver's cab proposed by the present disclosure includes a plurality of wall panels and finishing panels; the plurality of wall panels enclose the internal space of the driver's cab; the wall panels include a first wall panel and a second wall panel, the first wall panel includes the top cover of the driver's cab, and the second wall panel includes the floor of the driver's cab; a damping slurry layer, a first sound-absorbing material layer, and a first sound-insulating board are sequentially arranged on the inner side of the first wall panel; a second sound-insulating board, a second sound-absorbing material layer, and a third sound-insulating board are sequentially arranged on the inner side of the second wall panel; the finishing panel is arranged on the inner side of the wall panel, and the finishing panel has an appearance surface facing away from the arranged wall panel, and the shape of the appearance surface is designed according to the calculation result of the acoustic cavity mode of the driver's cab by an acoustic simulation analysis method to reduce the noise resonance of the driver's cab; the finishing panel is at least arranged on the inner side of the first sound-insulating board of the top cover. Through the above design, the present disclosure adopts a multi-layer composite structure of damping slurry, sound-absorbing material, and sound-insulating board for the top cover of the driver's cab, and at the same time adopts a multi-layer composite structure of sound-insulating board, sound-absorbing material, and sound-insulating board for the floor of the driver's cab, so as to realize the sound-absorbing and sound-insulating functions of the top cover and the floor, and significantly improve the control effect of the driver's cab on the noise from the outside of the top cover and the floor. On this basis, the present disclosure arranges a finishing panel designed based on the acoustic cavity mode on the inner side of the wall panel to optimize and improve the acoustic cavity mode of the driver's cab, thereby optimizing the acoustic environment of the driver's cab. By selectively applying and designing the finishing panels arranged at different wall panel positions of the driver's cab by the above method, a scientific and efficient noise control effect can be achieved, which is beneficial to improving the comfort and safety of the locomotive driver's cab. Brief Description of the Drawings

[0019] By considering the following detailed description of the preferred embodiments of the present disclosure in conjunction with the accompanying drawings, various objectives, features, and advantages of the present disclosure will become more apparent. The drawings are only exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, the same reference numerals always represent the same or similar components. Among them:

[0020] Figure 1 is a three-dimensional schematic diagram of a driver's cab shown according to an exemplary embodiment;

[0021] Figure 2 is Figure 1 a front view of the driver's cab shown;

[0022] Figure 3 is Figure 1 a three-dimensional schematic diagram of a partial structure of the driver's cab shown;

[0023] Figure 4 is a three-dimensional sectional view of the first wall panel;

[0024] Figure 5 is a three-dimensional sectional view of the third wall panel;

[0025] Figure 6 is a three-dimensional sectional view of the second wall panel.

[0026] The descriptions of the reference numerals are as follows:

[0027] 100. Decorative board;

[0028] 110. Appearance surface;

[0029] 201. Rear wall;

[0030] 202. Top cover;

[0031] 203. Front wall;

[0032] 204. Side wall;

[0033] 205. Floor;

[0034] 210. First wall panel;

[0035] 211. Damping slurry layer;

[0036] 212. First sound-absorbing material layer;

[0037] 213. First sound-insulating board;

[0038] 220. Third wall panel;

[0039] 221. Third sound-absorbing material layer;

[0040] 230. Second wall panel;

[0041] 231. Second sound-insulating board;

[0042] 232. Second sound-absorbing material layer;

[0043] 233. Third sound-insulating board. Detailed implementation manners

[0044] Typical embodiments embodying the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various variations in different embodiments, all of which do not depart from the scope of the present disclosure, and the descriptions and drawings therein are for illustrative purposes in nature and not for limiting the present disclosure.

[0045] In the following description of different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings which form a part of the present disclosure and in which are shown, by way of example, different exemplary structures, systems and steps by which various aspects of the present disclosure may be implemented. It is to be understood that other specific arrangements of components, structures, exemplary devices, systems and steps may be used and structural and functional modifications may be made without departing from the scope of the present disclosure. Also, although terms such as "above", "between", "within" etc. may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of the structure to fall within the scope of the present disclosure.

[0046] Refer to Figure 1 , which representatively shows a three-dimensional schematic diagram of the driver's cab proposed by the present disclosure, in which part of the structure is specifically shown in perspective to display the internal structure of the driver's cab. In this exemplary embodiment, the driver's cab proposed by the present disclosure is described by taking a locomotive applicable to complex environments such as high altitudes, continuous long and steep slopes, wide temperature ranges, and strong ultraviolet rays as an example. It is easy for those skilled in the art to understand that in order to apply the relevant designs of the present disclosure to the driver's cab design of other types of locomotives, various modifications, additions, substitutions, deletions or other changes are made to the following specific embodiments, and these changes are still within the scope of the principle of the driver's cab proposed by the present disclosure.

[0047] With reference to Figures 2 to 6 , Figure 2 represents a front view of the driver's cab; Figure 3 represents a three-dimensional schematic diagram of part of the structure of the driver's cab, in which specifically part of the structure of the rear wall 201 is hidden to display the internal structure of the driver's cab; Figure 4 represents a hierarchical three-dimensional schematic diagram of the first wall panel 210; Figure 5 represents a hierarchical three-dimensional schematic diagram of the third wall panel 220; Figure 6 represents a hierarchical three-dimensional schematic diagram of the second wall panel 230. The following will describe in detail the structures, connection methods and functional relationships of the main components of the driver's cab proposed by the present disclosure in conjunction with the above-mentioned drawings.

[0048] As Figures 1 to 3As shown, in an embodiment of the present disclosure, the driver's cab proposed by the present disclosure includes a plurality of wall panels and a finishing panel 100. The plurality of wall panels enclose the internal space of the driver's cab. These wall panels are, for example, the rear wall 201, the top cover 202, the front wall 203, the side walls 204, the floor 205, etc. of the driver's cab. The wall panels include a first wall panel 210 and a second wall panel 230. The first wall panel 210 includes the top cover 202 of the driver's cab, and the second wall panel 230 includes the floor 205 of the driver's cab. Among them, a damping slurry layer 211, a first sound-absorbing material layer 212, and a first sound-insulating board 213 are sequentially arranged on the inner side of the first wall panel 210. That is, the damping slurry layer 211 is arranged on the inner side of the outer steel plate of the top cover 202, the first sound-absorbing material layer 212 is arranged on the inner side of the damping slurry layer 211, and the first sound-insulating board 213 is arranged on the inner side of the damping slurry layer 211. In other words, on the inner side of the top cover 202, the top cover 202 (such as the outer steel plate), the first sound-insulating board 213, and the damping slurry layer 211 and the first sound-absorbing material layer 212 between the two jointly form a sandwich structure, and the sound transmitted into the driver's cab from the outside of the top cover 202 oscillates and dissipates inside this sandwich structure. A second sound-insulating board 231, a second sound-absorbing material layer 232, and a third sound-insulating board 233 are sequentially arranged on the inner side of the second wall panel 230. That is, the second sound-insulating board 231 is arranged on the inner side of the outer steel plate of the floor 205, the second sound-absorbing material layer 232 is arranged on the inner side of the second sound-insulating board 231, and the third sound-insulating board 233 is arranged on the inner side of the second sound-absorbing material layer 232. In other words, on the inner side of the floor 205, the second sound-insulating board 231, the third sound-insulating board 233, and the second sound-absorbing material layer 232 between the two jointly form a sandwich structure, and the sound transmitted into the driver's cab from the outside of the floor 205 oscillates and dissipates inside this sandwich structure. On this basis, the finishing panel 100 is arranged on the inner side of the wall panel. Further, the finishing panel is at least arranged on the inner side of the first sound-insulating board 213 of the top cover 202. The finishing panel 100 has an appearance surface 110 facing away from the arranged wall panel. The shape of this appearance surface 110 is designed according to the calculation result of the acoustic cavity mode of the driver's cab by the acoustic simulation analysis method to reduce the noise resonance of the driver's cab. Through the above design, the present disclosure adopts a multi-layer composite structure of damping slurry, sound-absorbing material, and sound-insulating board for the top cover 202 of the driver's cab, and at the same time adopts a multi-layer composite structure of sound-insulating board, sound-absorbing material, and sound-insulating board for the floor 205 of the driver's cab, so as to realize the sound absorption and sound insulation functions of the top cover 202 and the floor 205, and significantly improve the control effect of the driver's cab on the noise from the outside of the top cover 202 and the floor 205. On this basis, the present disclosure sets the finishing panel 100 designed based on the acoustic cavity mode on the inner side of the wall panel to optimize and improve the acoustic cavity mode of the driver's cab, thereby optimizing the acoustic environment of the driver's cab. By selectively applying and designing the finishing panel 100 arranged at different wall panel positions of the driver's cab by the above method, a scientific and efficient noise control effect can be achieved, which is beneficial to improving the comfort and safety of the locomotive driver's cab.

[0049] Specifically, the present disclosure jointly reduces the vibration transmission of noise through the top cover 202 (such as the outer steel plate of the top cover 202) by the damping slurry layer 211, reduces the reverberation effect of the transmitted noise of the top cover 202 through the first sound-absorbing material layer 212, and strengthens the sound insulation effect of the top cover 202 through the first sound insulation board 213. In particular, the above noise control effect is achieved between the driver's cab and the speakers (such as high and low speakers) outside the top cover 202. Moreover, the present disclosure can reduce the reverberation effect of the transmitted noise of the floor 205 through the second sound-absorbing material layer 232, and strengthen the sound insulation effect of the floor 205 through the second sound insulation board 231 and the third sound insulation board 233. In particular, the above noise control effect is achieved between the driver's cab and the wheel set assembly below the floor 205, effectively isolating the wheel-rail noise from below the floor 205.

[0050] In an embodiment of the present disclosure, the decorative board 100 can also be disposed inside the second wall panel 230, that is, the decorative board 100 is disposed inside the third sound insulation board 233 of the floor 205. Through the above design, on the basis of improving the control effect of the driver's cab on the noise from the outside of the floor 205, the present disclosure can utilize the decorative board 100 disposed inside the floor 205 to optimize and improve the acoustic cavity mode of the driver's cab, thereby further optimizing the acoustic environment of the driver's cab.

[0051] In an embodiment of the present disclosure, the second sound-absorbing material layer 232 can be a porous sandwich layer, specifically, it can be, for example, a honeycomb board or a honeycomb composite layer, etc.

[0052] As Figure 4 shown, in an embodiment of the present disclosure, the first wall panel 210 can further include the rear wall 201 of the driver's cab. Specifically, a damping slurry layer 211, a first sound-absorbing material layer 212, and a first sound insulation board 213 are sequentially disposed inside the rear wall 201. That is, the damping slurry layer 211 is disposed inside the outer steel plate of the rear wall 201. In other words, inside the rear wall 201, the rear wall 201 (such as the outer steel plate), the first sound insulation board 213, and the damping slurry layer 211 and the first sound-absorbing material layer 212 therebetween jointly form a sandwich structure, and the sound transmitted from the outside of the rear wall 201 to the driver's cab oscillates and dissipates inside. Through the above design, the present disclosure adopts a multi-layer composite structure of damping slurry, sound-absorbing material, and sound insulation board for the rear wall 201 of the driver's cab, thereby realizing the sound absorption and sound insulation functions of the rear wall 201, and significantly improving the control effect of the driver's cab on the noise from the outside of the rear wall 201 (such as the machinery compartment).

[0053] Based on the design that the first wall panel 210 includes the rear wall 201, in an embodiment of the present disclosure, the decorative board 100 can also be disposed inside the first sound insulation board 213 of the rear wall 201. Through the above design, on the basis of improving the control effect of the driver's cab on the noise from the outside of the rear wall 201, the present disclosure can utilize the decorative board 100 disposed inside the rear wall 201 to optimize and improve the acoustic cavity mode of the driver's cab, thereby further optimizing the acoustic environment of the driver's cab.

[0054] As Figure 5 shown, in an embodiment of the present disclosure, the wall panel can further include a third wall panel 220, and the third wall panel 220 can include the front wall 203 of the driver's cab. Among them, a third sound absorption material layer 221 can be disposed inside the third wall panel 220. That is, the third sound absorption material layer 221 is disposed inside the front wall 203. For example, the third sound absorption material layer 221 is disposed inside the outer steel plate of the front wall 203. Through the above design, the present disclosure can reduce the reverberation effect of the transmitted noise of the front wall 203 through the third sound absorption material layer 221, thereby significantly improving the control effect of the driver's cab on the noise from the outside of the front wall 203.

[0055] In an embodiment of the present disclosure, the decorative board 100 can also be disposed inside the third wall panel 220, that is, the decorative board 100 is also disposed inside the third sound absorption material layer 221 of the front wall 203. Through the above design, on the basis of improving the control effect of the driver's cab on the noise from the outside of the front wall 203, the present disclosure can utilize the decorative board 100 disposed inside the front wall 203 to optimize and improve the acoustic cavity mode of the driver's cab, thereby further optimizing the acoustic environment of the driver's cab.

[0056] As Figure 5 shown, based on the design that the wall panel further includes a third wall panel 220 and a third sound absorption material layer 221 is disposed inside the third wall panel 220, in an embodiment of the present disclosure, the third wall panel 220 can further include the side walls 204 of the driver's cab (such as the left and right side walls 204). That is, the third sound absorption material layer 221 is disposed inside the side walls 204. For example, the third sound absorption material layer 221 is disposed inside the outer steel plate of the side walls 204. Through the above design, the present disclosure can reduce the reverberation effect of the transmitted noise of the side walls 204 through the third sound absorption material layer 221, thereby significantly improving the control effect of the driver's cab on the noise from the outside of the front wall 203.

[0057] In an embodiment of the present disclosure, the finishing board 100 can also be disposed inside the third wall panel 220, that is, the finishing board 100 is also disposed inside the third sound-absorbing material layer 221 of the side wall 204. Through the above design, on the basis of improving the control effect of the cab on the noise from the outside of the side wall 204, the present disclosure can utilize the finishing board 100 disposed inside the side wall 204 to optimize and improve the acoustic cavity mode of the cab, thereby further optimizing the cab acoustic environment.

[0058] It should be noted that in various possible embodiments that conform to the design concept of the cab proposed in the present disclosure, the finishing board 100 is at least disposed inside the wall panel (the first wall panel 210) serving as the top cover 202. On this basis, when the finishing board 100 is also disposed inside other wall panels, it can be understood that multiple finishing boards 100 are respectively disposed inside different wall panels, or it can also be understood that different parts of at least one finishing board 100 are respectively disposed inside different wall panels.

[0059] As described above, since the noise transmitted into the cab from all directions will bounce and reverberate repeatedly in the internal space of the cab, the present disclosure can effectively reduce the enhancement of the reverberation on the noise by adopting the above-mentioned first sound-absorbing material layer 212, the third sound-absorbing material layer 221, and the first sound-absorbing material layer 212, and the second sound-absorbing material provided on the front wall 203 and the side wall 204 can also reduce the reflection of the noise.

[0060] In an embodiment of the present disclosure, for the shape design of the appearance surface 110 of the finishing board 100, the following method can be specifically adopted: Calculate the acoustic cavity mode of the cab through an acoustic simulation analysis method. Design the shape of the finishing board 100 according to the calculation result of the acoustic cavity mode. The shape of the finishing board 100 includes the shape of an appearance surface 110 facing away from the wall panel to which it is disposed, so that when the finishing board 100 is disposed on the wall panel of the cab, the noise resonance of the cab can be reduced. Through the above design, the present disclosure designs the finishing board 100 based on the acoustic cavity mode, realizes the optimization and improvement of the acoustic cavity mode of the cab, thereby optimizing the cab acoustic environment. By selectively applying the above method to the finishing boards 100 disposed at different wall panel positions of the cab, a scientific and efficient noise control effect can be achieved, which is beneficial to improving the comfort and safety of the locomotive cab.

[0061] In an embodiment of the present disclosure, the above-mentioned acoustic simulation analysis method can include a finite element simulation method for acoustic cavity mode.

[0062] In an embodiment of the present disclosure, the above-mentioned acoustic simulation analysis method can be implemented via the Fluent Acoustic module.

[0063] In an embodiment of the present disclosure, the average noise level of the driver's cab proposed by the present disclosure is less than or equal to 70 dB. Among them, in order for the applicant to verify the effect of the noise control method for the driver's cab proposed by the present disclosure on the noise control of the driver's cab, this noise control method is applied in the design of the driver's cab of a certain type of locomotive. Accordingly, the shape of the appearance surface of the decorative board is designed. The average noise level of the obtained driver's cab in the noise test is 66 dB, which is far lower than the industry standard requirement of 78 dB.

[0064] Specifically, in the above verification test, based on the Fluent Acoustic module, the acoustic cavity mode of the driver's cab is calculated, and according to the calculation result of the acoustic cavity mode, the appearance surface 110 of the decorative board 100 is redesigned, and the acoustic cavity mode of the driver's cab is changed by changing the shape of the decorative board 100. According to the test of the noise level before and after the optimization design of the driver's cab, it can be seen that the noise level of the acoustic cavity mode of the driver's cab optimized by the noise control method proposed by the present disclosure is significantly reduced. As shown in Table 1, the operating frequency of the locomotive mechanical room is about 50 Hz. Before optimization, the noise in the driver's cab is prone to resonance, and the frequencies in the longitudinal first-order and transverse first-order acoustic cavity mode vibration modes are 48.97 Hz and 113.5 Hz respectively. After optimization, the frequency in the above longitudinal first-order acoustic cavity mode vibration mode drops to 35.6 Hz, and the frequency in the above transverse first-order acoustic cavity mode vibration mode rises to 134 Hz. Based on this control, the noise control method proposed by the present disclosure significantly reduces the noise level and alleviates the problem of noise-induced resonance.

[0065]

[0066] Table 1 Comparison of the acoustic cavity mode of the driver's cab before and after the optimization design of the decorative board

[0067] It should be noted here that the driver's cabs shown in the drawings and described in this specification are only a few examples of the many driver's cabs that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details or any components of the driver's cabs shown in the drawings or described in this specification.

[0068] Based on the above detailed description of several exemplary embodiments of the driver's cab proposed by the present disclosure, the following will describe an exemplary embodiment of the locomotive proposed by the present disclosure.

[0069] In an embodiment of the present disclosure, the locomotive proposed by the present disclosure includes the driver's cab proposed by the present disclosure and described in detail in the above embodiments.

[0070] In an embodiment of the present disclosure, the locomotive proposed by the present disclosure further includes a wheel set assembly, and the wheel set assembly is disposed below the floor of the driver's cab. Accordingly, by adopting the above-mentioned optimized design of the decorative board based on the acoustic cavity mode, the present disclosure can reduce the noise impact of the wheel set assembly on the driver's cab (such as wheel-rail noise).

[0071] In an embodiment of the present disclosure, the locomotive proposed by the present disclosure further includes a machinery space, and the machinery space is disposed outside the rear wall of the driver's cab. Accordingly, by adopting the above-mentioned optimized design of the decorative board based on the acoustic cavity mode, the present disclosure can reduce the noise impact of the machinery space on the driver's cab.

[0072] In an embodiment of the present disclosure, the locomotive proposed by the present disclosure further includes horns (such as high and low pitch horns), and the horns are disposed outside the top cover of the driver's cab (i.e., the top of the driver's cab). Accordingly, by adopting the above-mentioned optimized design of the decorative board based on the acoustic cavity mode, the present disclosure can reduce the noise impact of the horns on the driver's cab.

[0073] It should be noted here that the locomotives shown in the drawings and described in this specification are only a few examples of the many locomotives that can adopt the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details or any components of the locomotives shown in the drawings or described in this specification.

[0074] In summary, the driver's cab proposed in the present disclosure includes multiple wall panels and a finishing board 100; the multiple wall panels enclose the internal space of the driver's cab; the wall panels include a first wall panel 210 and a second wall panel 230, the first wall panel 210 includes the top cover 202 of the driver's cab, and the second wall panel 230 includes the floor 205 of the driver's cab; a damping slurry layer 211, a first sound-absorbing material layer 212, and a first sound-insulating board 213 are sequentially arranged on the inner side of the first wall panel 210; a second sound-insulating board 231, a second sound-absorbing material layer 232, and a third sound-insulating board 233 are sequentially arranged on the inner side of the second wall panel 230; the finishing board 100 is arranged on the inner side of the wall panel, and the finishing board 100 has an appearance surface 110 facing away from the arranged wall panel, and the shape of the appearance surface 110 is designed according to the calculation result of the acoustic cavity mode of the driver's cab by the acoustic simulation analysis method to reduce the noise resonance of the driver's cab; the finishing board 100 is at least arranged on the inner side of the first sound-insulating board 213 of the top cover 202. Through the above design, the present disclosure adopts a multi-layer composite structure of damping slurry, sound-absorbing material, and sound-insulating board for the top cover 202 of the driver's cab, and at the same time adopts a multi-layer composite structure of sound-insulating board, sound-absorbing material, and sound-insulating board for the floor 205 of the driver's cab, so as to realize the sound-absorbing and sound-insulating functions of the top cover 202 and the floor 205, and significantly improve the control effect of the driver's cab on the noise from the outside of the top cover 202 and the floor 205. On this basis, the present disclosure sets a finishing board 100 designed based on the acoustic cavity mode on the inner side of the wall panel to optimize and improve the acoustic cavity mode of the driver's cab, thereby optimizing the acoustic environment of the driver's cab. By selectively applying the finishing board 100 arranged at different wall panel positions of the driver's cab by the above method, a scientific and efficient noise control effect can be achieved, which is beneficial to improving the comfort and safety of the locomotive driver's cab.

[0075] Specifically, in some embodiments of the present disclosure, the present disclosure combines the optimized design of the finishing board based on the acoustic cavity mode with the noise reduction structure designs such as vibration reduction, sound insulation, and sound absorption, and proposes a systematic and efficient noise reduction method for the locomotive driver's cab. The driver's cab designed by this method can effectively reduce the noise level, improve the environmental comfort, and ensure the health of the driver and the safety of the train operation. Among them, the damping slurry layer adopted in the above embodiments can reduce the vibration transmission of the noise, the sound insulation materials (such as the first sound-insulating board, the second sound-insulating board, and the third sound-insulating board) can reduce the noise transmission, and the sound-absorbing materials (such as the first sound-absorbing material layer, the third sound-absorbing material layer, and the second sound-absorbing material layer) can reduce the reverberation effect of the transmitted noise. The sound insulation effect is enhanced through the above design combination structure, and at the same time, the acoustic environment of the driver's cab is optimized by optimizing the acoustic cavity mode of the driver's cab. A scientific and efficient noise control effect is achieved through the selective application of the above method at different parts of the driver's cab.

[0076] Exemplary embodiments of the driver's cab and locomotive proposed by the present disclosure have been described and / or illustrated in detail above. However, the embodiments of the present disclosure are not limited to the specific embodiments described herein. On the contrary, the components and / or steps of each embodiment can be used independently and separately from the other components and / or steps described herein. Each component and / or each step of one embodiment can also be used in combination with the other components and / or steps of other embodiments. When introducing the elements / components / etc. described and / or illustrated herein, the terms "a", "an", and "the above" etc. are used to indicate the existence of one or more elements / components / etc. The terms "comprising", "including", and "having" are used to mean an open inclusion and refer to the existence of additional elements / components / etc. in addition to the listed elements / components / etc. In addition, the terms "first" and "second" etc. in the claims and the specification are only used as labels and are not numerical limitations on their objects.

[0077] Although the driver's cab and locomotive proposed by the present disclosure have been described according to different specific embodiments, those skilled in the art will recognize that modifications can be made to the embodiments of the present disclosure within the spirit and scope of the claims.

Claims

1. A driver's cab, characterized in that: include: A plurality of wall panels, wherein the plurality of wall panels enclose an interior space of a driver's cab; the wall panels include a first wall panel and a second wall panel, wherein the first wall panel includes a roof of the driver's cab, and the second wall panel includes a floor of the driver's cab; a damping slurry layer, a first sound absorbing material layer, and a first sound insulation board are sequentially arranged on the inner side of the first wall panel; a second sound insulation board, a second sound absorbing material layer, and a third sound insulation board are sequentially arranged on the inner side of the second wall panel; A decoration panel is arranged on the inner side of the wall panel, the decoration panel has an appearance surface facing away from the wall panel, and the shape of the appearance surface is designed based on the calculation result of the acoustic cavity mode of the driver's cab by an acoustic simulation analysis method to reduce the noise resonance of the driver's cab; The decoration board is at least arranged on the inner side of the first sound insulation board of the top cover.

2. The driver's cab according to claim 1, characterized in that: The first wall panel also includes a rear wall of the driver's cab.

3. The driver's cab according to claim 2, characterized in that: The decoration board is also arranged on the inner side of the first sound insulation board of the rear wall.

4. The driver's cab according to claim 1, characterized in that: The decoration board is also arranged on the inner side of the third sound insulation board of the floor.

5. The driver's cab according to claim 1, characterized in that: The wall panels include a third wall panel, and the third wall panel includes the front wall and the side wall of the driver's cab; a third sound absorbing material layer is arranged on the inner side of the third wall panel.

6. The driver's cab according to claim 5, characterized in that: The decoration board is also arranged on the inner side of the third sound absorbing material layer of the front wall, and / or the decoration board is also arranged on the inner side of the third sound absorbing material layer of the side wall.

7. The driver's cab according to any one of claims 1 to 6, characterized in that: The acoustic simulation analysis method includes a finite element simulation method for acoustic cavity modes.

8. The driver's cab according to any one of claims 1 to 6, characterized in that: The acoustic simulation analysis method is implemented via the Fluent Acoustic module.

9. A locomotive, characterized in that: It comprises the driver's cab as described in any one of claims 1 to 8.

10. The locomotive according to claim 9, characterized in that Also includes: A wheelset assembly disposed below the floor of the driver's cab; and / or A machine room, which is arranged outside the rear wall of the driver's cab; and / or A horn is arranged on the outer side of the roof of the driver's cab.

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