HOli.. - Memorial University's Digital Archives - Memorial University ...

More documents

Recommendations

Info

Chapter 6 Propeller Fabrication by Rapid Prototyping Several design and simulation iterations may be required before the designer is satisfied that the propeller geometry is appropriate. Once satisfied, the designer will need to fabricate a working prototype for testing. Rapid prolotyping (RP) is the recommended approval 10 minimize the time and cost 10 arrive al a suitable prototype. As illlroduccd in chapler 2, there arc six nlpid prolotyping tcchnologies arc introduced. All of these technologies can be used to produce a propeller. The main differences between RP each technology arc the materials to manufacture paris and the machine accuacy. Selection ora suitable RP technology for a propeller depends on the accuracy and the strength required lor the specific working environment. Slratasys Fusion Deposition Modeling (FDM) 2000 is used in Ihis thesis for propeller fabrication due to its accessibility at <strong>Memorial</strong> <strong>University</strong>. As stated the introduction in chapter 2, FDM technology is fast, at low cost and (Iuite accurate for a testing level; however, the materials that can be used in FDM arc limitcd with I\I3S. PC and wax. These matl-Tials have poor strength property. which limits the strength of FDM prototypes. 98
The Stratasys FDM 2000 RP process requires the input oran .STL file, whieh is a ronnat used by Sten.'olithography soflw
Page 4:
A Rapid Development Process for Mar
Page 7 and 8:
Table of Contents Abstract ... Ackn
Page 9:
List ofTables Table I: Required Inp
Page 12 and 13:
Figure 46: Surface Dynamic Pressure
Page 14 and 15:
a long time to analyze, draw, fabri
Page 16 and 17:
Simulation work is now commonly don
Page 18 and 19:
Early theoretical analysis applied
Page 20 and 21:
------------------------- provides
Page 22 and 23:
As can be secn in Table I, the lift
Page 24 and 25:
propeller geometry has to be entere
Page 27:
avoid cavitation; however, it decre
Page 31:
l" ........... ,... __ .... :l ,,_
Page 34:
Table 2: Advantages and Disadvantag
Page 41 and 42:
trend for many companies to reduce
Page 43 and 44:
fluxes through a particular control
Page 45 and 46:
known as a casting, is usually ejec
Page 47 and 48:
Table 3: Prototyping Technology Mat
Page 49:
quite accuratc for a testing level.
Page 54 and 55:
For given values ofJ, Fn, Rn, En, t
Page 56:
propeller geometry for impon into t
Page 59 and 60: Using OpenPVL_SW I a propeller desi
Page 64: o ...n".... 'Co 'OJ • • • DC)
Page 72 and 73: 3.3 Simulations using CosmosFloWork
Page 75 and 76: simulation domain are set to 6m and
Page 79: CosmosWorks can be used to check th
Page 82: Figure 33: Dynamic Pressure Distrib
Page 88: Chapter 4 Case Study: Simulation of
Page 94 and 95: The plots of RPM and thrust from ou
Page 96 and 97: Figure 46: Surface Dynamic Pressure
Page 98: Figure 48: Deflection ofthe AUV Pro
Page 102: In this simulation, two nose cones
Page 112 and 113: Figure 60: Stratasys rDM 2000 After
Page 115 and 116: Material options for Stratasys Fusi
Page 117 and 118: Chapter 7 Conclusions and Future Wo
Page 119 and 120: References III Burtner, E., 1953, "
Page 121 and 122: [20] D'Epagnier, P.K., 2005, "A Com
Page 123 and 124: Appendix 1\: The Part ofOpcnPVL_SW
Page 125: Create all of the function commands
Page 131: Appendix B: SolidWorks Macro lor th
Page 134: 'create loft swModcl.ClearSelcction
show all

HOli.. - Memorial University's Digital Archives - Memorial University ...

Create successful ePaper yourself

Delete template?

Save as template?