GrabCAD 模型信息
AFP - Another Fluid Pump: Airbus Challenge Winner design · 模型 238540
Please read AFP.pdf for following content 1. GENERAL INFORMATION 2. INTRODUCTION 3. SPECIFICATIONS OF PARTS AND MATERIAL 4. DETAIL DESCRIPTION 5. BLOCKED FLOW HANDLING METHOD 6. COST EFFECTIVENESS 7. INSTALLATION PROCESS 8. BILL OF MATERIAL 9. DRAWINGS A ".STEP" model is uploaded to give the overview of assembly. All the part files are present in 'files' folder. Fasteners are not uploaded. The list of fasteners used is present in bill of material in AFP.pdf GENERAL INFORMATION: DIRECTION OF MOTION: Anti-Clockwise SIZE: (l x b x h) 100 x 77x 60 mm^3 (including Box) 100 x 60 x 52 mm^3 (excluding Box) MASS: 897.12 ± 50 grams (excluding Electronic Box) SPACE FOR ELECTRONICS: 70 x 50 x 15 mm^3 ANGULAR VELOCITY REQUIRED FOR 7 L/MIN FLOW RATE = 1825.57 RPM ANGULAR VELOCITY REQUIRED FOR 11 L/MIN FLOW RATE = 2868.76 RPM OPERATING TEMPERATURE: The pump can operate between the temperature range from -20°C to 100°C provided there is no phase change of fluid. Also, it can sustain frequent thermal shift between above temperature range. BLOCKED FLOW HANDLING METHOD: Mechanical and Electronic both INLET OUTLET DIAMETER: 10 mm The AFP pump is designed based on the phenomenon of Rotary Vane pump. The assembly is designed as per the regulation of CS 29 amdt 3. Following CS 29 amdt 3 general criteria, all the material used in designing the parts are accepted by European Aviation Safety Agency. Additionally, no sharp edges are exposed, all the fasteners are locked and no self-locking fasteners are used. The assembly is able to withstand up to -20 to 100 degree Celsius provided electronics and electronic box has the equivalent capability. BLOCKAGE HANDLING Let T be the force excreted by fluid on incline portion. Therefore, t’ force is tending to push the rod in upward direction. As the ROTOR is rotating with angular velocity, say W, then force exerted by BLADE is F= mrW^2 where m, r is mass, radius The reaction force exerted by BLADE on fluid is more than t’’. Now, if the flow is blocked, then force exerted by Fluid is T’’, thereby T’’ >>> T Simultaneously, the F will be reduced since W is decreased. This leads to the upward movement of BLADES. When the BLADES move upward, the T reduces. This let the movement of ROTOR to regain the speed. By regaining the speed, the F increases. Over all, it achieves the equilibrium position under Blocked flow circumstances. Equilibrium condition F = T’’× sine(theta) ADVANTAGES OF THIS METHOD • This method of tackling the blocke...
- 格式
- Rendering、STL、Other、STEP / IGES
- 分类
- Aviation、Components、Machine design
- 标签
- airbuswaterpump、priming、self、hydrodynamic、fuel、water、aviation、vane、pump
- 数据更新
- 2026-10-28T08:33:50Z