Steps
Step 1
Piping System Modeling
This step establishes dynamic or finite element models of mechanical systems, providing numerical tools for precise analysis and optimization. Mechanical system modeling requires accurate description of system mass, stiffness, damping and constraint characteristics, capturing main dynamic behaviors of the system through reasonable simplification. Model validation is a key link to ensure credible analysis results.
• Build finite element models using ANSYS or ABAQUS, mesh the model, define material properties, set boundary conditions and loads
• Establish multi-body dynamics model, perform kinematic and dynamic simulation using ADAMS, analyze motion trajectory and dynamic loads
• Perform model validation, compare with modal test or analytical solutions, ensuring model frequency and mode shape error within 10%
Deliverable: Simulation model (including FEM/dynamics model, mesh convergence, material parameters, validation results) | Quality standard: Accurate model, reasonable mesh, sufficient validation, deviation from test/theory <10%
Step 2
Friction and Minor Loss Calculation
This step performs detailed calculation of mechanical components, verifying design indicators such as strength, stiffness and stability. Mechanics calculation is the foundation of mechanical design, based on mechanics of materials, elasticity and mechanical design theory, ensuring components are safe and reliable under working loads. Combine analytical calculation with finite element calculation for mutual verification.
• Perform force analysis and internal force calculation, draw shear force diagram, bending moment diagram and torque diagram, determine critical sections
• Apply strength theories (first, second, third, fourth strength theory) for strength verification, calculate safety factor
• Perform stiffness calculation (deformation calculation) and stability calculation, ensuring deflection, rotation angle and critical stress meet requirements
Deliverable: Calculation document (including force analysis, internal force diagrams, strength verification, stiffness verification, stability calculation) | Quality standard: Correct calculation model, proper formula application, accurate results, sufficient safety factor
Step 3
Bernoulli Equation Solution
This step performs detailed calculation of mechanical components, verifying design indicators such as strength, stiffness and stability. Mechanics calculation is the foundation of mechanical design, based on mechanics of materials, elasticity and mechanical design theory, ensuring components are safe and reliable under working loads. Combine analytical calculation with finite element calculation for mutual verification.
• Perform force analysis and internal force calculation, draw shear force diagram, bending moment diagram and torque diagram, determine critical sections
• Apply strength theories (first, second, third, fourth strength theory) for strength verification, calculate safety factor
• Perform stiffness calculation (deformation calculation) and stability calculation, ensuring deflection, rotation angle and critical stress meet requirements
Deliverable: Calculation document (including force analysis, internal force diagrams, strength verification, stiffness verification, stability calculation) | Quality standard: Correct calculation model, proper formula application, accurate results, sufficient safety factor
Step 4
Pump Selection
This step is a critical element in mechanical engineering design, using mechanics principles and engineering methods to solve mechanical system problems. Mechanical engineering emphasizes safety and reliability, requiring rigorous mechanical calculation and sufficient verification at every step. Use mature design theories and professional CAD/CAE tools to ensure design quality.
• Develop detailed design schemes and calculation methods according to mechanical design specifications and standards
• Use professional software (SolidWorks/ANSYS/ADAMS/AutoCAD, etc.) for design, modeling and analysis
• Perform multi-faceted verification such as strength, stiffness, stability and fatigue, ensuring design is safe and reliable
Deliverable: Mechanical design report (including design drawings, calculation document, simulation analysis, selection description) | Quality standard: Standard design, accurate calculation, sufficient verification, safe and reliable
Step 5
Operating Point Check and Report
This step performs comprehensive verification of mechanical design, ensuring all components meet design criteria and standard requirements. Verification is a key link to ensure mechanical product quality and reliability, eliminating design hidden dangers through multi-dimensional inspection of strength, stiffness, stability, life, etc. Must perform systematic verification according to national standards and industry specifications.
• Perform strength, stiffness, stability verification and fatigue life estimation according to GB/T 3811 or relevant mechanical design standards
• Perform FEA verification of key components, compare with analytical calculation results, ensuring reasonable stress distribution and deformation
• Check design drawings and manufacturability, conduct manufacturability review and standardization review, ensuring design is manufacturable and assemblable
Deliverable: Verification report (including various verification results, FEA validation, manufacturability review, problem list, correction suggestions) | Quality standard: Comprehensive verification, accurate data, all indicators qualified, good manufacturability