The fluid-thermal-structural coupling characteristics of the hydraulic pump plunger pair refer to the interaction among the fluid field, thermal field and structural field in the pump plunger pair, which will affect the performance and reliability of the pump. The fluid field refers to the flow of hydraulic oil in the pump cavity, which generates fluid pressure and friction on the plunger surface. The thermal field refers to the heat transfer between the hydraulic oil and the pump components due to the frictional heat generated during operation. The structural field refers to the deformation and stress distribution of the plunger due to fluid pressure and thermal effects. The coupling of these three fields causes various phenomena such as thermal deformation of the plunger, changes in fluid flow velocity, and changes in fluid pressure distribution. These phenomena affect the performance and reliability of the pump and therefore need to be considered in the design and analysis of hydraulic pumps. Methods for analyzing the coupled fluid-thermal-structural properties of hydraulic pump plunger pairs include computational fluid dynamics (CFD) simulations, finite element analysis (FEA), and experimental measurements. These methods provide insight into the interactions between fluid, thermal and structural fields and can be used to optimize the design and performance of hydraulic pumps. Fluid-thermal-structural coupling is a phenomenon that occurs in hydraulic pumps, especially in plunger pairs. The interplay between the fluid, thermal and structural behavior of pump plunger pairs plays an important role in the overall performance and efficiency of the pump. The following are some key characteristics of fluid-thermal-structural coupling in hydraulic pump plunger alignment: Thermal Expansion: Due to the high pressure and temperature of the fluid, the plunger and barrel of a hydraulic pump experience thermal expansion, which causes the gap between the two parts to change. Viscous Damping: The fluid inside the pump also acts as a damper, helping to reduce vibration and noise generated by the pump. Friction and Wear: Friction and wear between the plunger and barrel can cause damage to the pump over time, especially if the clearance between the two components is not properly maintained. 90R180-MA-2-BC-80-S-C-C8-H-02-FAC-38-38-24 90R180MA2BC80SCC8H02FAC383824 90-R-180-MA-1-NN-80-S-M-C8-J-03-NNN-38-38-24 90R180MA1NN80SMC8J03NNN383824 90R180-MA-1-NN-80-S-M-C8-J-03-NNN-38-38-24 90R180MA1NN80SMC8J03NNN383824 90-R-180-MA-1-NN-80-S-C-F1-H-03-NNN-35-35-24 90R180MA1NN80SCF1H03NNN353524 90R180-MA-1-NN-80-S-C-F1-H-03-NNN-35-35-24 90R180MA1NN80SCF1H03NNN353524 90-R-180-MA-1-NN-80-S-C-F1-H-03-FAC-42-42-24 90R180MA1NN80SCF1H03FAC424224 90R180-MA-1-NN-80-S-C-F1-H-03-FAC-42-42-24 90R180MA1NN80SCF1H03FAC424224 90-R-180-MA-1-EG-80-S-M-C8-J-02-NNN-42-42-24 90R180MA1EG80SMC8J02NNN424224 90R180-MA-1-EG-80-S-M-C8-J-02-NNN-42-42-24 90R180MA1EG80SMC8J02NNN424224 90-R-180-MA-1-EF-80-T-C-C8-H-03-NNN-20-20-24 90R180MA1EF80TCC8H03NNN202024 Dynamic characteristics: The dynamic behavior of pump plunger pairs is also affected by fluid-thermal-structural coupling, which affects pump performance and efficiency. Material properties: The properties of the materials used to construct the pump, including their thermal conductivity, coefficient of thermal expansion, and modulus of elasticity, can also play a role in fluid-thermal-structural coupling. To ensure optimum performance and efficiency of a hydraulic pump, it is important to consider the fluid-thermal-structural coupling characteristics of the pump plunger pair during design and manufacture, as well as during operation and maintenance. The fluid-thermal-structural coupling characteristics of a hydraulic pump plunger pair refer to the interaction between fluid, thermal and structural phenomena that occur during pump operation. This coupling can have a significant impact on pump performance, reliability and durability. During operation, hydraulic fluid exerts pressure on the plunger, creating a force that is transmitted to the pump casing. This force can cause deformation of the pump casing, which can affect pump performance. In addition, the friction between the plunger and the pump housing can cause the temperature of the pump to increase, which can affect the viscosity and other characteristics of the hydraulic oil. To understand the fluid-thermal-structural coupling behavior of a hydraulic pump plunger pair, various analytical and numerical methods can be used. These methods can help simulate the interaction between fluid, thermal and structural phenomena that occur during pump operation and predict pump performance, reliability and durability. In general, the fluid-thermal-structural coupling characteristics of a hydraulic pump plunger pair are complex and can be affected by a variety of factors, including the geometry of the pump, the properties of the hydraulic fluid, the operating conditions of the pump, and the materials of the pump components characteristic. Therefore, it is important to consider these factors when designing, operating and maintaining hydraulic pumps to ensure optimum performance and service life. The fluid-thermal-structural coupling characteristics of a hydraulic pump plunger pair are important for understanding the behavior and performance of the pump under different operating conditions. 90-R-180-MA-1-EF-80-T-C-C8-H-03-FAC-20-20-24 90R180MA1EF80TCC8H03FAC202024 90R180-MA-1-EF-80-T-C-C8-H-03-FAC-20-20-24 90R180MA1EF80TCC8H03FAC202024 90-R-180-MA-1-CD-80-S-M-C8-H-03-FAC-26-26-24 90R180MA1CD80SMC8H03FAC262624 90-R-180-MA-1-CD-80-S-C-F1-H-03-NNN-42-42-24 90R180MA1CD80SCF1H03NNN424224 90-R-180-MA-1-CD-80-S-C-F1-H-03-FAC-42-42-24 90R180MA1CD80SCF1H03FAC424224 90-R-180-MA-1-BC-80-T-M-F1-J-03-FAC-35-35-24 90R180MA1BC80TMF1J03FAC353524 90R180-MA-1-BC-80-T-M-F1-J-03-FAC-35-35-24 90R180MA1BC80TMF1J03FAC353524 90-R-180-MA-1-BC-80-S-M-F1-J-04-NNN-42-42-24 90R180MA1BC80SMF1J04NNN424224 90R180-MA-1-BC-80-S-M-F1-J-04-NNN-42-42-24 90R180MA1BC80SMF1J04NNN424224 90-R-180-MA-1-BC-80-S-M-C8-J-02-NNN-42-42-24 90R180MA1BC80SMC8J02NNN424224 Generally, the coupling between fluid domain, thermal domain and structural domain in hydraulic pump plunger centering can be described by the following steps: Fluid Domain: The fluid domain is the hydraulic fluid that flows through the pump. Fluid properties such as density, viscosity, and temperature affect the flow rate and pressure of a fluid. The flow rate and pressure distribution in turn affect the temperature of the fluid in contact with the plunger. Hot Zone: The hot zone is the plunger and other parts of the pump that come into contact with the hydraulic fluid. Heat is generated in the plunger due to friction with the fluid and the mechanical movement of the plunger. The heat generated by the plunger is transferred to the fluid and surrounding structures by conduction and convection. Domain: The domain includes the plunger and other pump components that come into contact with the hydraulic fluid. The domain is mechanically loaded due to the pressure of the fluid and the movement of the plunger. Stresses and strains in the plunger and other parts of the pump can affect pump performance and durability. The coupled fluid-thermal-structural behavior of a hydraulic pump plunger pair can be studied using numerical simulations that solve the governing equations for the fluid, thermal, and structural domains. These simulations provide insight into how the pump behaves under different operating conditions and help in the design and optimization of hydraulic pumps for specific applications.