The transmission path of the vibration signal of the marine hydraulic pump refers to the study of how the vibration signal generated inside the hydraulic pump is transmitted and propagated through various components and structures. Knowing the laws of the transmission path helps to identify sources of vibration, diagnose potential faults and take appropriate actions for condition monitoring and maintenance of marine hydraulic pumps. The following key factors need to be considered when studying the transmission path of vibration signals of marine hydraulic pumps: 1. Vibration source: Determine the main vibration source in the hydraulic pump. These sources may include unbalanced rotating parts, misalignment, bearing defects, cavitation, fluid turbulence and mechanical shock. Each vibration source produces a unique vibration signature that propagates through the pump and surrounding structures. 2. Vibration Transmission Mechanisms: Study how vibration signals are transmitted from the source to the different components and structures within the hydraulic pump. Transmission mechanisms may involve structural vibration, fluid vibration, and direct mechanical coupling. Knowing the main transport mechanism helps to determine the vibration propagation path. 3. Vibration propagation path: analyze the path taken by the vibration signal when it passes through the hydraulic pump. This includes studying the interaction of vibration signals with pump components such as impellers, pistons, valves, casings and piping. The geometry, material properties and mounting configuration of these components affect the transmission and propagation characteristics of the vibration signal. 90R100-HF-1-BC-80-S-3-C7-E-03-GBA-38-38-24 90R100HF1BC80S3C7E03GBA383824 90-R-100-HF-1-BC-80-S-3-C7-E-03-GBA-38-38-24 90R100HF1BC80S3C7E03GBA383824 90-R-100-HF-1-BC-80-S-3-F1-E-03-GBA-35-35-24 90R100HF1BC80S3F1E03GBA353524 90-R-100-HF-1-BC-80-S-3-S1-E-03-GBA-42-42-24 90R100HF1BC80S3S1E03GBA424224 90-R-100-HF-1-BC-80-S-3-S1-E-04-GBA-32-32-24 90R100HF1BC80S3S1E04GBA323224 90-R-100-HF-1-BC-80-S-3-S1-F-03-GBA-35-35-24 90R100HF1BC80S3S1F03GBA353524 90R100-HF-1-BC-80-S-4-C7-E-03-GBA-38-38-24 90R100HF1BC80S4C7E03GBA383824 90-R-100-HF-1-BC-80-S-4-C7-E-03-GBA-38-38-24 90R100HF1BC80S4C7E03GBA383824 90-R-100-HF-1-BC-80-S-4-F1-E-03-GBA-17-17-20 90R100HF1BC80S4F1E03GBA171720 90-R-100-HF-1-BC-80-S-4-F1-E-03-GBA-29-29-24 90R100HF1BC80S4F1E03GBA292924 90-R-100-HF-1-BC-80-S-4-F1-E-03-GBA-35-35-20 90R100HF1BC80S4F1E03GBA353520 90R100-HF-1-BC-80-S-4-S1-F-03-GBA-30-30-24 90R100HF1BC80S4S1F03GBA303024 90-R-100-HF-1-BC-80-S-4-S1-F-03-GBA-30-30-24 90R100HF1BC80S4S1F03GBA303024 90-R-100-HF-1-CD-60-D-3-C7-L-03-GBA-38-38-24 90R100HF1CD60D3C7L03GBA383824 90-R-100-HF-1-CD-60-P-3-F1-E-03-GBA-38-38-20 90R100HF1CD60P3F1E03GBA383820 90-R-100-HF-1-CD-60-P-3-F1-F-03-GBA-38-38-24 90R100HF1CD60P3F1F03GBA383824 90-R-100-HF-1-CD-60-P-3-S1-E-03-GBA-42-42-20 90R100HF1CD60P3S1E03GBA424220 90-R-100-HF-1-CD-60-P-3-S1-F-03-GBA-38-38-24 90R100HF1CD60P3S1F03GBA383824 90-R-100-HF-1-CD-60-P-3-T2-E-03-GBA-42-42-20 90R100HF1CD60P3T2E03GBA424220 90-R-100-HF-1-CD-60-R-3-T2-E-03-GBA-42-42-20 90R100HF1CD60R3T2E03GBA424220 4. Transmission loss: Study the loss and attenuation that occurs when the vibration signal propagates through the hydraulic pump. Factors such as damping, material properties, component resonance, and energy dissipation affect the amplitude and frequency content of the transmitted vibration signal. Knowing these losses helps to assess the integrity and health of pump components. 5. Signal analysis technology: use various signal analysis technologies to study the transmitted vibration signal. These techniques may include time domain analysis, frequency analysis (eg, Fourier analysis), wavelet analysis, envelope analysis, and spectral analysis. By analyzing the characteristics of the transmitted vibration signal, such as amplitude, frequency content and modulation, it is possible to identify specific fault signatures and assess the severity of the problem. 6. Sensor Placement and Data Acquisition: Determine the optimal location of the vibration sensor within the hydraulic pump to capture a representative vibration signal. Consider factors such as proximity to vibration sources, accessibility, and practical installation constraints. Collect vibration data using an appropriate data acquisition system for further analysis and interpretation. 7. Fault diagnosis and condition monitoring: Apply diagnostic techniques to interpret vibration signals and detect potential faults or abnormal conditions within hydraulic pumps. Develop vibration-based condition monitoring methods and algorithms to detect early signs of component degradation, wear, or impending failure. This enables proactive maintenance and avoids unplanned downtime. 90-R-100-HF-1-CD-60-R-4-S1-E-03-GBA-42-42-24 90R100HF1CD60R4S1E03GBA424224 90-R-100-HF-1-CD-60-S-3-F1-E-03-GBA-42-42-24 90R100HF1CD60S3F1E03GBA424224 90R100-HF-1-CD-60-S-4-F1-E-03-GBA-42-42-24 90R100HF1CD60S4F1E03GBA424224 90-R-100-HF-1-CD-60-S-4-F1-E-03-GBA-42-42-24 90R100HF1CD60S4F1E03GBA424224 90R100-HF-1-CD-80-L-3-S1-F-00-GBA-23-23-24 90R100HF1CD80L3S1F00GBA232324 90-R-100-HF-1-CD-80-L-3-S1-F-00-GBA-23-23-24 90R100HF1CD80L3S1F00GBA232324 90-R-100-HF-1-CD-80-P-3-C7-F-03-GBA-35-35-24 90R100HF1CD80P3C7F03GBA353524 90-R-100-HF-1-CD-80-P-3-F1-F-00-GBA-23-29-24 90R100HF1CD80P3F1F00GBA232924 90-R-100-HF-1-CD-80-P-3-F1-F-00-GBA-32-29-30 90R100HF1CD80P3F1F00GBA322930 90-R-100-HF-1-CD-80-R-3-F1-F-00-GBA-32-26-30 90R100HF1CD80R3F1F00GBA322630 90-R-100-HF-1-CD-80-R-4-C6-F-04-GBA-42-42-24 90R100HF1CD80R4C6F04GBA424224 90R100-HF-1-CD-80-R-4-F1-F-00-GBA-32-26-30 90R100HF1CD80R4F1F00GBA322630 90-R-100-HF-1-CD-80-R-4-F1-F-00-GBA-32-26-30 90R100HF1CD80R4F1F00GBA322630 90-R-100-HF-1-CD-80-R-4-F1-F-03-GBA-35-35-24 90R100HF1CD80R4F1F03GBA353524 90-R-100-HF-1-CD-80-S-3-F1-F-00-GBA-23-29-24 90R100HF1CD80S3F1F00GBA232924 90-R-100-HF-1-CD-80-S-3-S1-F-00-GBA-23-29-24 90R100HF1CD80S3S1F00GBA232924 90R100-HF-1-CD-80-S-4-C6-F-00-GBA-38-38-24 90R100HF1CD80S4C6F00GBA383824 90-R-100-HF-1-CD-80-S-4-C6-F-00-GBA-38-38-24 90R100HF1CD80S4C6F00GBA383824 90-R-100-HF-1-NN-60-P-4-S1-E-03-GBA-29-29-24 90R100HF1NN60P4S1E03GBA292924 90-R-100-HF-1-NN-60-R-3-S1-E-03-GBA-35-35-24 90R100HF1NN60R3S1E03GBA353524 8. Correlation with performance parameters: Correlate vibration signals with performance parameters of hydraulic pumps such as flow, pressure, temperature and efficiency. Establish the relationship between vibration characteristics and pump performance to gain insight into the impact of vibration on pump operation and reliability. 9. The influence of installation and support structure: analyze the influence of installation and support structure on vibration signal transmission. The baseplate, foundation or surrounding structure of the pump can affect the propagation path and change the characteristics of the transmitted vibration signal. Factors such as stiffness, damping and resonance frequency of the supporting structure should be considered. 10. Frequency response and transfer function: study the frequency response characteristics and transfer function of hydraulic pumps and their components. Frequency response analysis helps to understand the amplification or attenuation of specific frequency components as a vibration signal passes through different components and structures. Transfer functions provide insight into the dynamic behavior and vibration transfer characteristics of a system. 11. Modal analysis: Conduct modal analysis to determine the natural frequency and mode shape of the hydraulic pump and its components. Modal analysis helps to understand the vibration characteristics and resonant frequencies of a system. It can also reveal potential mode coupling effects and their impact on vibration transmission paths. 12. Structural health monitoring: Explore the application of structural health monitoring technology to evaluate the condition of hydraulic pump components based on vibration signals. These techniques can include vibration signature analysis, modal analysis, wave propagation analysis or pattern recognition algorithms. By continuously monitoring vibration signals, deviations from normal behavior can be detected and potential malfunctions or deterioration identified. 90-R-100-HF-1-NN-60-R-4-S1-F-03-GBA-38-38-28 90R100HF1NN60R4S1F03GBA383828 90-R-100-HF-1-NN-60-S-4-F1-E-03-GBA-23-17-24 90R100HF1NN60S4F1E03GBA231724 90-R-100-HF-1-NN-60-S-4-S1-E-00-GBA-35-35-24 90R100HF1NN60S4S1E00GBA353524 90-R-100-HF-1-NN-80-L-3-S1-F-03-GBA-35-35-24 90R100HF1NN80L3S1F03GBA353524 90-R-100-HF-1-NN-80-L-4-F1-E-03-GBA-26-26-24 90R100HF1NN80L4F1E03GBA262624 90-R-100-HF-1-NN-80-L-4-S1-E-03-GBA-35-35-24 90R100HF1NN80L4S1E03GBA353524 90-R-100-HF-1-NN-80-L-4-S1-F-03-GBA-29-29-24 90R100HF1NN80L4S1F03GBA292924 90-R-100-HF-1-NN-80-L-4-S1-F-03-GBA-35-35-24 90R100HF1NN80L4S1F03GBA353524 90-R-100-HF-1-NN-80-P-3-S1-E-03-GBA-42-42-24 90R100HF1NN80P3S1E03GBA424224 90-R-100-HF-1-NN-80-P-3-S1-F-02-GBA-35-35-24 90R100HF1NN80P3S1F02GBA353524 90-R-100-HF-1-NN-80-P-3-S1-F-03-GBA-35-35-24 90R100HF1NN80P3S1F03GBA353524 90-R-100-HF-1-NN-80-R-3-S1-E-03-GBA-35-35-24 90R100HF1NN80R3S1E03GBA353524 90R100-HF-1-NN-80-R-3-S1-E-03-GBA-35-35-24 90R100HF1NN80R3S1E03GBA353524 90-R-100-HF-1-NN-80-R-3-S1-F-04-GBA-35-35-24 90R100HF1NN80R3S1F04GBA353524 90-R-100-HF-1-NN-80-R-4-S1-F-03-GBA-32-32-24 90R100HF1NN80R4S1F03GBA323224 90-R-100-HF-1-NN-80-S-3-F1-E-03-GBA-35-35-24 90R100HF1NN80S3F1E03GBA353524 90-R-100-HF-1-NN-80-S-4-S1-E-03-GBA-35-35-24 90R100HF1NN80S4S1E03GBA353524 90-R-100-HF-2-BB-60-P-4-C7-E-00-GBA-42-42-20 90R100HF2BB60P4C7E00GBA424220 90-R-100-HF-2-BC-80-L-4-S1-F-00-GBA-17-17-28 90R100HF2BC80L4S1F00GBA171728 90-R-100-HF-2-NN-80-R-3-S1-F-03-GBA-38-38-28 90R100HF2NN80R3S1F03GBA383828 13. Experimental verification: Conduct experimental testing and verification research to verify the relevant findings on the transmission path of the vibration signal of the marine hydraulic pump. Utilize vibration measurement equipment and test setups to replicate pump operating conditions. Compare measured vibration signals to predicted transport paths and properties to verify the accuracy of analytical or numerical models. 14. Modeling and Simulation: Develop analytical or numerical models to simulate the transmission paths of vibration signals in marine hydraulic pumps. Utilize finite element analysis (FEA), computational fluid dynamics (CFD), or system-level simulation techniques to predict vibration behavior and evaluate the effectiveness of different design modifications or damping strategies. Simulation models can provide valuable insights into vibration propagation paths and help optimize pump designs. 15. Mitigation strategies: Based on the understanding of the transmission path laws, develop mitigation strategies to reduce vibration levels and minimize the transmission of vibration signals within the hydraulic pump. This may involve the use of vibration isolators, dampers, structural modifications or fluid conditioning techniques. Evaluate the effectiveness of these strategies through experimental testing or simulation studies. By considering these additional points, researchers can gain a comprehensive understanding of the transmission path regularity of vibration signals from marine hydraulic pumps. This knowledge can help diagnose faults, optimize pump design, implement effective maintenance strategies, and improve the overall reliability and performance of hydraulic pumping systems.