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@@ -1,62 +1 @@
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-# Timing Belt Calculator - External Load Improvements
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-
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-## Issue Identified
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-Current timing belt calculation program only considers gravity and friction forces, which is insufficient for real-world applications where external loads (cutting forces, fluid resistance, spring forces, etc.) are present.
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-
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-## Proposed Solutions
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-
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-### Short-term Improvement (Quick Implementation)
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-1. Add "externalForce" parameter (N) to existing calculation
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-2. Modify load torque calculation: `totalForce = gravityForce + frictionForce + externalForce`
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-3. Support positive (resistance) and negative (assistance) values
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-4. Add "externalTorque" parameter for direct torque loads
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-
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-### Long-term Improvement (Comprehensive Solution)
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-1. **Application Type Selection**:
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- - Vertical lifting
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- - Horizontal pushing/pulling
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- - Rotational loads
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- - Custom scenarios
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-
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-2. **Load Component Breakdown**:
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- ```javascript
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- resistanceComponents: {
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- friction: 10, // N
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- cuttingForce: 50, // N
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- springForce: 30, // N
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- fluidDrag: 15, // N
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- other: 0 // N
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- }
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- ```
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-
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-3. **Enhanced Calculation Formula**:
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- ```
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- Total Load Torque = [Gravity Component + Friction + ΣExternal Forces + Direct External Torque] × Pulley Radius ÷ Efficiency
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-
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- Where:
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- - Gravity Component = mass × gravity × cos(installationAngle)
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- - Friction = mass × gravity × frictionCoeff × sin(installationAngle)
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- - External Forces = user-defined various resistance forces
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- - Direct External Torque = torque directly acting on shaft
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- ```
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-
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-4. **Additional Features**:
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- - Dynamic load curves (varying loads at different positions/speeds)
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- - Application-specific safety factor recommendations
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- - Power requirement calculations
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-
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-## Implementation Priority
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-- Short-term solution should be implemented first for immediate practical use
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-- Long-term solution provides comprehensive engineering analysis capabilities
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-
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-## Files to Update
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-- timing_belt_calculator.js (or equivalent calculation module)
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-- UI component files for parameter input
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-- Documentation files explaining new parameters
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-
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-## Git Commit Strategy
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-- Create feature branch: `feature/external-load-support`
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-- Implement short-term improvements first
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-- Test with various external load scenarios
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-- Merge when validated
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-- Plan long-term improvements as separate development phase
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+- 用户强调：保持积极向远程 Git 服务器同步所有更改的传统。
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molt