Dissertation > Excellent graduate degree dissertation topics show

Automation of Aircraft Layout and Mass Estimation Using CAD Model

Author: YaoMing
Tutor: YuXiongQing
School: Nanjing University of Aeronautics and Astronautics
Course: Aircraft design
Keywords: pilot less aircraft CAD Secondary development Structure disposition Equipment disposition Aircraft design weight characteristic the centroid change
CLC: V222
Type: Master's thesis
Year: 2009
Downloads: 30
Quote: 0
Read: Download Dissertation

Abstract


Since aircraft design involves many disciplines, the multidisciplinary design optimization (MDO) of the aircraft has been an important field. For recent decades, the analysis model of each discipline gets increasingly detail, and the fidelity of the codes and software developed based on those analysis models become higher. Accordingly, more accurate geometric models are required. On the other hand, CAD software shows great advantage in geometric modeling. It is expected that the combination of CAD tools with the high fidelity models of each discipline will enhance the performance of MDO of the aircraft.As a part the multidisciplinary design optimization (MDO) of the aircraft, a method for automatic generation of aircraft structural layout model and internal layout model based on CAD modeling technique was proposed. Based on the models, the mass and centroid of the aircraft can be predicted. The model generator for multidisciplinary analysis and optimization was a critical element in aircraft MDO. The model generator had three functions: one function is to generate a common geometric model of aircraft structure automatically using the primary parameters; second function is to generate internal layout automatically using the parameters based on knowledge based engineering; the third function is to get further results about the mass and the centroid of the aircraft, and accomplish the centroid adjust automatically based the geometric model. The model generator was developed using CATIA software API and was used to automatically generate the structural and internal CAD models.A flying-wing unmanned air vehicle (UAV) was used as an example to explain the method using CATIA software API to build the CAD model of the aircraft structural and internal models, and to predict the mass of the aircraft and the centroid adjustment for flight control requirements. The programs were developed to automatically generate the CAD model of the structural and internal layout of fly-wing UAV, and predict the mass and the centroid. From the example, the feasibility and efficiency of the process was verified. The results manifest that the program, which is based on CATIA software API, can be applied to the structural and internal layout generation of the fly-wing UAV in an automatic way. The program can be also used as a building block for the multidisciplinary design optimization system of flying-wing UAV.

Related Dissertations

  1. Parametric Technology in Apparel Pattern-Making Based on Constraint Graph,TS941.2
  2. VBA environment mapping three-dimensional mine,TP391.72
  3. CAD/CAPP/CAM Integrated System Development for Key Components in Marine Diesel,U664.121
  4. The Study of the Redevelopment of Materials in New Curriculum Implementation,G423.07
  5. The Practical Research on Secondary Development of Junior High School Geography under the New Curriculum,G633.55
  6. AutoCAD Mechanical design aids based research and development,TH122
  7. Research and Implementation of Huamei Gongchan Food Co. Ltd ERP System,TP311.52
  8. Research on Feature Extraction, Selection and Classification Algorithms for Pulmonary CAD,TP391.41
  9. Casting process CAD software Development,TP391.72
  10. A CAD Data Integration Approach to Collaborative Design with Heterogeneous Systems,TP391.72
  11. Random Vibration Response Control and the Patran Redevelopment,O324
  12. Study of an Analysis System Based on Pro/E for Metal Blank Unfolding,TG38
  13. Research and Development of Fast Analysis Software of Sheet Metal Forming Based on SolidWorks,TG385
  14. Research on Simulation of Loop Pile Tufted Carpet Base on Open Inventor,TS106.76
  15. The Study of 3-D Paramatric Modeling and Feature Extraction in Pro/E,TP391.72
  16. Research on Existing Problems of Network Course,G434
  17. Electronic assembly process research and implementation assistance systems,TN05
  18. Hull section robotic welding path planning and offline programming,TP242
  19. Pro/E-Based Design and Manufacturing of Two-Roll Straightening Machine Roller Type for Bar,TG333.23
  20. Design and Development of a CAD/FEA Seamless Integration Platform CAFIP,TP391.72
  21. Cross-Platform Research and Application of Die CAD System,TP391.72

CLC: > Aviation, aerospace > Aviation > Aircraft Construction and Design > Structure and design of various components ( Zonglun )
© 2012 www.DissertationTopic.Net  Mobile