Structural optimization and noise reduction are important research topics in the field of hydraulic pumps. A lot of research has been done on these topics at home and abroad. In terms of structural optimization, researchers have been working on developing more efficient and reliable hydraulic pump structures. For example, several studies have investigated the use of composite materials in hydraulic pump construction, which can improve the overall performance of the pump while reducing weight and cost. Others focus on improving the design of hydraulic pump components, such as gears and bearings, to reduce friction and increase efficiency. Regarding noise reduction, researchers have been exploring various techniques to reduce the noise produced by hydraulic pumps. One approach is to use active noise control techniques such as adaptive feed-forward control or feedback control to counteract the noise produced by the pump. Another method is to modify the structure of the hydraulic pump to reduce the vibration and noise generated by the pump, such as using special coatings or damping materials. At home, my country is conducting structural optimization and noise reduction research on hydraulic pumps. For example, researchers at Beijing Institute of Technology have developed a new hydraulic pump design that uses a combination of gear and plunger mechanisms to increase efficiency and reduce noise. Another study conducted by researchers at Wuhan University focused on optimizing the design of hydraulic pump valve plates to reduce noise and improve performance. Internationally, researchers in Europe and North America have also been conducting research on hydraulic pump structure optimization and noise reduction. For example, researchers at the University of Bath in the UK have been exploring the use of advanced materials and additive manufacturing techniques to create more efficient and reliable hydraulic pump components. In the US, researchers at Purdue University have been working to develop new hydraulic pump designs that use innovative materials and geometries to reduce noise and improve performance. 90-L-055-KN-5-NN-80-S-3-S1-C-03-GBA-35-35-24 90L055KN5NN80S3S1C03GBA353524 90-L-055-KP-1-AB-60-P-3-C6-C-03-GBA-35-35-24 90L055KP1AB60P3C6C03GBA353524 90-L-055-KP-1-AB-60-S-4-S1-C-03-GBA-29-14-24 90L055KP1AB60S4S1C03GBA291424 90-L-055-KP-1-AB-60-S-4-S1-D-00-GBA-35-35-24-F026 90L055KP1AB60S4S1D00GBA353524F026 90-L-055-KP-1-AB-60-S-4-S1-D-00-GBA-35-35-24-F029 90L055KP1AB60S4S1D00GBA353524F029 90-L-055-KP-1-AB-80-P-3-S1-C-03-GBA-38-38-24 90L055KP1AB80P3S1C03GBA383824 90-L-055-KP-1-AB-80-P-3-S1-D-03-GBA-42-42-24 90L055KP1AB80P3S1D03GBA424224 90-L-055-KP-1-AB-80-S-3-S1-C-03-GBA-42-42-24 90L055KP1AB80S3S1C03GBA424224 90-L-055-KP-1-AB-80-S-3-S1-D-03-GBA-42-42-24 90L055KP1AB80S3S1D03GBA424224 90-L-055-KP-1-AC-81-P-3-S1-C-03-GBA-35-35-20 90L055KP1AC81P3S1C03GBA353520 In general, the research and development of hydraulic pump structure optimization and noise reduction at home and abroad are ongoing, and it is an important research field to improve the efficiency and reliability of hydraulic pump systems. There are many researches on structural optimization and noise reduction of hydraulic pumps at home and abroad. Here are some examples: Structural Optimization of Vane Pumps: A study was conducted to optimize the geometry of vane pumps commonly used in hydraulic systems. By using computer simulations, the researchers were able to optimize the design of the pumps to reduce noise and improve efficiency. Noise reduction of gear pumps: Gear pumps are widely used in hydraulic systems, but they generate a lot of noise. A study was conducted to investigate the use of different materials and coatings to reduce the noise produced by gear pumps. Noise Reduction for Piston Pumps: Piston pumps are another common type of hydraulic pump that can produce a lot of noise. A study was conducted to investigate the use of different materials and coatings to reduce the noise produced by piston pumps. Structural Optimization of Axial Piston Pumps: Axial piston pumps are widely used in aircraft hydraulic systems, but they are noisy. A study was conducted to optimize the design of axial piston pumps to reduce noise and increase efficiency. Noise reduction in hydraulic systems: In addition to optimizing the design of individual hydraulic pumps, the researchers also investigated ways to reduce noise at the system level. For example, one study investigated the use of vibration isolation technology to reduce noise generated by hydraulic systems. Collectively, these studies demonstrate ongoing efforts to improve the performance and reduce noise of hydraulic pumps, which are critical components in many applications, including aerospace, industrial, and automotive systems. In recent years, more and more attention has been paid to the structural optimization and noise reduction of hydraulic pumps. Researchers have been working on the design of new hydraulic pumps, the use of advanced materials, the optimization of existing pump structures, and the development of new noise reduction techniques. Some of the research work done on structural optimization and noise reduction of hydraulic pumps are: Optimizing the rotor-stator clearance in vane pumps: Researchers are working on optimizing the rotor-stator clearance in vane pumps to reduce noise levels. By optimizing the clearance, the contact between the rotor and the stator can be minimized, thereby reducing the noise level. Design and analysis of a new hydraulic pump: The researchers designed and analyzed a new hydraulic pump with an optimized structure that has a lower noise level than conventional pumps. These pumps are designed using advanced simulation tools to better understand flow characteristics and noise generation mechanisms. 90-L-055-KP-1-BB-60-L-3-S1-C-03-GBA-42-42-24 90L055KP1BB60L3S1C03GBA424224 90-L-055-KP-1-BB-60-P-3-C6-C-03-GBA-32-32-24 90L055KP1BB60P3C6C03GBA323224 90-L-055-KP-1-BB-60-P-3-C6-C-03-GBA-35-35-24 90L055KP1BB60P3C6C03GBA353524 90-L-055-KP-1-BB-60-R-3-S1-C-03-GBA-35-35-24 90L055KP1BB60R3S1C03GBA353524 90-L-055-KP-1-BB-80-S-4-S1-D-03-GBA-26-26-24 90L055KP1BB80S4S1D03GBA262624 90-L-055-KP-1-BB-81-P-3-S1-C-03-GBA-35-35-20 90L055KP1BB81P3S1C03GBA353520 90-L-055-KP-1-BC-60-L-3-S1-C-06-GBA-42-42-20 90L055KP1BC60L3S1C06GBA424220 90-L-055-KP-1-BC-60-P-3-C6-C-03-GBA-35-35-24 90L055KP1BC60P3C6C03GBA353524 90-L-055-KP-1-BC-60-P-3-C6-C-03-GBA-35-35-28 90L055KP1BC60P3C6C03GBA353528 90-L-055-KP-1-BC-60-P-3-S1-C-03-GBA-38-38-24 90L055KP1BC60P3S1C03GBA383824 Use of advanced materials: The use of advanced materials such as composites and ceramics can significantly reduce the noise level of hydraulic pumps. These materials have lower density and better damping properties, which reduces vibration and noise generated by the pump. Development of new noise reduction techniques: Researchers have developed various noise reduction techniques such as active noise control and passive noise control. Active noise control involves the use of electronics to cancel noise, while passive noise control involves the use of acoustic materials to absorb noise. Optimize pump structure: optimize hydraulic pump structure to reduce noise level. By optimizing the shape and size of the pump components, flow characteristics can be improved, resulting in lower noise levels. Overall, structural optimization and noise reduction research for hydraulic pumps is underway to develop more efficient and quieter hydraulic pumps.