rocket-design-manufacturing-automation-shenzhen22

# Rocket Design and Manufacturing Automation Program > Skill by [ara.so](https://ara.so) — Design Skills collection. This is a TypeScript-based automation program for rocket design and manufacturing developed by students at Shenzhen 22nd High School. The system provides tools for designing rocket components, calculating performance parameters, simulating flight dynamics, and generating manufacturing specifications. ## Installation ```bash # Clone the repository git clone https://github.com/Kevin100202/Rocket-Design-and-Manufacturing-Automation-Program-from-Shenzhen22highschool.git cd Rocket-Design-and-Manufacturing-Automation-Program-from-Shenzhen22highschool # Install dependencies npm install # Build the project npm run build # Run the program npm start ``` ## Project Structure The project typically follows this structure for rocket design automation: ``` src/ ├── core/ # Core design engine ├── components/ # Rocket component models ├── simulation/ # Flight simulation modules ├── manufacturing/ # Manufacturing file generation ├── calculations/ # Performance calculations └── utils/ # Helper utilities ``` ## Key Concepts ### Rocket Component Design Define rocket components with physical and performance specifications: ```typescript interface RocketComponent { name: string; type: 'noseCone' | 'bodyTube' | 'fins' | 'motor' | 'recovery'; dimensions: { length: number; // mm diameter: number; // mm thickness?: number; // mm }; material: string; mass: number; // grams } interface RocketDesign { id: string; name: string; components: RocketComponent[]; specifications: { totalMass: number; centerOfGravity: number; centerOfPressure: number; stability: number; }; } ``` ### Creating a Basic Rocket Design ```typescript import { RocketDesigner } from './core/RocketDesigner'; import { MaterialLibrary } from './utils/MaterialLibrary'; // Initialize designer const designer = new RocketDesigner(); // Create nose cone const noseCone = designer.createComponent({ name: 'Nose Cone', type: 'noseCone', dimensions: { length: 150, diameter: 50 }, material: MaterialLibrary.PLA, shape: 'ogive' }); // Create body tube const bodyTube = designer.createComponent({ name: 'Main Body', type: 'bodyTube', dimensions: { length: 400, diameter: 50, thickness: 3 }, material: MaterialLibrary.CARDBOARD }); // Create fin set const fins = designer.createFinSet({ name: 'Trapezoidal Fins', type: 'fins', count: 3, dimensions: { rootChord: 100, tipChord: 50, span: 80, thickness: 3 }, material: MaterialLibrary.BALSA_WOOD }); // Assemble rocket const rocket = designer.assembleRocket({ name: 'Model Rocket Alpha', components: [noseCone, bodyTube, fins] }); ``` ## Performance Calculations ### Stability Analysis ```typescript import { StabilityCalculator } from './calculations/StabilityCalculator'; const calculator = new StabilityCalculator(rocket); // Calculate center of gravity const cog = calculator.calculateCenterOfGravity(); console.log(`Center of Gravity: ${cog} mm from nose`); // Calculate center of pressure const cop = calculator.calculateCenterOfPressure(); console.log(`Center of Pressure: ${cop} mm from nose`); // Calculate stability margin (should be 1-2 calibers) const stability = calculator.calculateStability(); console.log(`Stability Margin: ${stability} calibers`); if (stability < 1) { console.warn('Warning: Rocket is unstable. Move CG forward or increase fin size.'); } else if (stability > 2) { console.warn('Warning: Rocket is overstable. May weathercock in wind.'); } ``` ### Flight Simulation ```typescript import { FlightSimulator } from './simulation/FlightSimulator'; const simulator = new FlightSimulator({ rocket: rocket, motor: 'C6-5', // Motor designation launchAngle: 90, // degrees windSpeed: 5, // m/s temperature: 20, // celsius pressure: 101325 // Pa }); // Run simulation const flightData = await simulator.simulate(); console.log(`Maximum Altitude: ${flightData.maxAltitude.toFixed(2)} m`); console.log(`Maximum Velocity: ${flightData.maxVelocity.toFixed(2)} m/s`); console.log(`Flight Duration: ${flightData.flightTime.toFixed(2)} s`); console.log(`Landing Distance: ${flightData.landingDistance.toFixed(2)} m`); // Export trajectory data simulator.exportTrajectory('./output/trajectory.csv'); ``` ## Manufacturing Automation ### Generate CAD Files ```typescript import { CADExporter } from './manufacturing/CADExporter'; const exporter = new CADExporter(rocket); // Export individual components await exporter.exportComponent(noseCone, { format: 'STL', outputPath: './manufacturing/nose_cone.stl', units: 'mm', resolution: 'high' }); await exporter.exportComponent(fins, { format: 'DXF', outputPath: './manufacturing/fins.dxf', units: 'mm' }); // Export assembly await exporter.exportAssembly({ format: 'STEP', outputPath: './manufacturing/rocket_assembly.step' }); ``` ### Generate Cutting Templates ```typescript import { TemplateGenerator } from './manufacturing/TemplateGenerator'; const generator = new TemplateGenerator(); // Generate fin cutting template const finTemplate = generator.createFinTemplate(fins, { includeMargins: true, marginSize: 5, // mm includeGuides: true, scale: 1.0 }); await finTemplate.exportPDF('./manufacturing/fin_template.pdf'); await finTemplate.exportSVG('./manufacturing/fin_template.svg'); ``` ### Bill of Materials ```typescript import { BOMGenerator } from './manufacturing/BOMGenerator'; const bomGenerator = new BOMGenerator(rocket); const bom = bomGenerator.generate({ includeMaterials: true, includeHardware: true, includeCosts: true }); console.log(bom.toTable()); // Export BOM await bom.exportCSV('./manufacturing/bom.csv'); await bom.exportJSON('./manufacturing/bom.json'); ``` ## Advanced Features ### Parametric Design Optimization ```typescript import { DesignOptimizer } from './core/DesignOptimizer'; const optimizer = new DesignOptimizer({ objectives: ['maxAltitude', 'stability'], constraints: { maxMass: 500, // grams maxLength: 600, // mm minStability: 1.5, // calibers maxStability: 2.0 } }); // Define parameter ranges const optimizationResult = await optimizer.optimize({ finSpan: { min: 60, max: 100 }, finChord: { min: 80, max: 120 }, bodyLength: { min: 300, max: 500 }, noseConeLength: { min: 100, max: 200 } }); console.log('Optimal parameters:', optimizationResult.parameters); console.log('Expected altitude:', optimizationResult.altitude); ``` ### Multi-Stage Rockets ```typescript import { MultiStageRocket } from './core/MultiStageRocket'; const multiStage = new MultiStageRocket(); // Define first stage const stage1 = designer.assembleRocket({ name: 'Booster Stage', components: [ boosterBody, boosterFins, boosterMotor ] }); // Define second stage const stage2 = designer.assembleRocket({ name: 'Upper Stage', components: [ upperNoseCone, upperBody, upperMotor ] }); // Combine stages multiStage.addStage(stage1, { separationDelay: 2.5 }); multiStage.addStage(stage2, { ignitionDelay: 0.5 }); // Simulate multi-stage flight const multistageFlightData = await multiStage.simulate(); ``` ## Configuration Create a `rocket.config.ts` file for project-wide settings: ```typescript export const rocketConfig = { units: { length: 'mm', mass: 'g', velocity: 'm/s', force: 'N' }, simulation: { timeStep: 0.01, // seconds dragCoefficient: 0.75, airDensity: 1.225 // kg/m³ }, manufacturing: { tolerance: 0.5, // mm defaultMaterial: 'PLA', printer3D: { bedSize: { x: 220, y: 220, z: 250 }, layerHeight: 0.2, infill: 20 } }, safety: { minStability: 1.0, maxStability: 3.0, structuralSafetyFactor: 1.5 } }; ``` ## Common Patterns ### Design Validation Pipeline ```typescript import { DesignValidator } from './core/DesignValidator'; async function validateAndExport(rocket: RocketDesign) { const validator = new DesignValidator(); // Run all validation checks const validation = await validator.validate(rocket); if (!validation.isValid) { console.error('Design validation failed:'); validation.errors.forEach(err => console.error(`- ${err}`)); return false; } if (validation.warnings.length > 0) { console.warn('Design warnings:'); validation.warnings.forEach(warn => console.warn(`- ${warn}`)); } // Export if valid const exporter = new CADExporter(rocket); await exporter.exportAll('./output'); return true; } ``` ### Batch Simulation ```typescript import { BatchSimulator } from './simulation/BatchSimulator'; const batch = new BatchSimulator(rocket); // Test multiple motor configurations const motors = ['A8-3', 'B6-4', 'C6-5', 'D12-7']; const results = await batch.simulateMotors(motors); // Find optimal motor const optimal = results.reduce((best, current) => current.maxAltitude > best.maxAltitude ? current : best ); console.log(`Optimal motor: ${optimal.motor}`); console.log(`Altitude: ${optimal.maxAltitude.toFixed(2)} m`); ``` ## Troubleshooting ### Stability Issues If your rocket shows poor stability: ```typescript // Check stability margin if (rocket.specifications.stability < 1.0) { // Option 1: Increase fin size fins.dimensions.span += 10; // Option 2: Move CG forward (add nose weight) rocket.addBallast({ mass: 20, position: 'nose' }); // Recalculate rocket.recalculate(); } ``` ### Export Errors If CAD export fails: ```typescript try { await exporter.exportComponent(component, options); } catch (error) { if (error.code === 'INVALID_GEOMETRY') { console.error('Component geometry is invalid. Check dimensions.'); } else if (error.code === 'FILE_WRITE_ERROR') { console.error('Cannot write to output directory. Check permissions.'); } } ``` ### Simulation Convergence If simulations don't converge: ```typescript const simulator = new FlightSimulator({ rocket: rocket, motor: 'C6-5', solver: { method: 'RK4', // Use Runge-Kutta 4th order maxIterations: 10000, tolerance: 1e-6, adaptiveStep: true } }); ``` ## API Reference ### Core Classes - `RocketDesigner` - Main design interface - `StabilityCalculator` - CG/CP calculations - `FlightSimulator` - Flight dynamics simulation - `CADExporter` - Manufacturing file export - `DesignOptimizer` - Parametric optimization - `MaterialLibrary` - Material properties database ### Utility Functions ```typescript import { convertUnits, calculateArea, interpolate } from './utils'; // Unit conversion const meters = convertUnits(1000, 'mm', 'm'); // 1.0 // Area calculations const finArea = calculateArea(fins); // Data interpolation const thrustAtTime = interpolate(motorData.thrust, 2.5); ``` ## Resources - Project repository: https://github.com/Kevin100202/Rocket-Design-and-Manufacturing-Automation-Program-from-Shenzhen22highschool - Model rocket design guides: OpenRocket documentation - NAR safety codes: https://www.nar.org/safety-information/model-rocket-safety-code/