Papers by Keyword: Civil Aircraft

Abstract: Additive manufacturing (AM) offers a potential for time and cost savings, especially for aerospace components made from costly titanium alloys. Owning to advantages such as its ability to form complex component, good surface quality, fine microstructure, excellent property, etc, it is attracting increasing attention. Much work has been done in recent years, including manufacturing facility, processing technology and specification. Here we summarize the development and status of AM technology, the underlying problems and its application perspective on civil aircraft.

Abstract: Test bench requirements for integrated electrical mechanical control system are first introduced and their rationales are analyzed. Furthermore, test bench architecture, software and hardware is presented in detail. Finally, through a demo application of water waste system simulation experiment, test bench functionalities are demonstrated partly.

Abstract: A simulation and test based approach intended to support whole lifecycle activities of IEMS development is proposed. A new test bench design philosophy including its hardware and software as well as its support for each IEMS development phase are described in detail. Finally, further considerations on bench application for IEMS certification are also proposed.

Abstract: This paper studied the concentration distribution of gas extinguishing agent numerically in high velocity flow field. Civil aircraft power plant compartment has been a difficult area for its high velocity flow field formed after fire happens. Focusing on this issue, certain results, such as mass flow rate of agent gas, total mass of agent and extinguishing efficiency were presented. A typical apparatus of fire extinguishing system was set up, and its fire-fighting efficiency was evaluated. Critical ratio of mass flow rate and flow velocity, gas discharge time and locations of gas sample tubes were recommended. The results and data can provide a practical way in fire extinguishing system evaluation in civil aircraft power plant compartment.

Abstract: For safety-designing an equipment/system in civil aircraft, ARP4761 & SAE ARP 4754 is important common standard. But in these standards there has no clear description aircraft structures effect on the equipment/system. In this present paper, aircraft structures effect on design an equipment/system is considered by methods of FHA-FMEA-FTA-SSA quantitatively by conservative assumption. A flow chart of requirement considering structure-support effect is developed.

Abstract: Based on the aircraft cabin customization requirement, the paper compares and analyzes the civil aircraft cabin customization systems of Boeing and Airbus and proposes a frame design scheme of customization systems. Furthermore, it particularly discusses the selection process and results management, and realizes the cabin customization demonstration by virtual reality.

Abstract: Maintainability is a main design attribute of a civil airplane. So evaluation to the maintainability is very important for the design of the civil aircraft. The Human motion capture is a promising technique for maintainability evaluation. In this article, a method about the maintainability evaluation based on the optical motion capture system was presented. Then a test case was developed to demonstrate the feasibility of the method. The test case mainly focused on the accessibility of the civil aircraft.

Abstract: The collaborative design and manufacturing is applied in the aircraft industry. This paper introduces the collaborative design and manufacturing mode in aircraft industry and presents its structural framework. The data is managed in the structure of BOM and there are two ways to share the data between the suppliers. The collaborative design and manufacturing process reflects the concept of concurrent engineering. The collaborative design and manufacturing system has been applied in the project of C919 which could sharply shorten the research cycle and reduce the product cost.

Abstract: Inventory control plays a crucial role for civil aircraft in reducing production cost to improve the competitiveness. Aiming at the special requirements of aircraft manufacturing industry, we propose a solution to classify the material instead of ABC inventory control. In order to balance economy and reliability, we build a new criterion system to classify the aircraft material into nine categories. We investigate the Support Vector Machine (SVM) method to classify the material for it has been proved very powerful and effective in establishing classification model with small sample, nonlinearity, high dimension and local minima. The choice of corresponding parameters, the choice of the training set, and the choice of the SVM kernel highly affect the performance of the classification. The study was done to determine the appropriate kernel function and to optimize SVM’s parameters for the classification of civil aircraft materials. Research results prove the validity of the classification model by the software implementation.

Abstract: This paper addresses how to discover wind erosion of aircraft components in time and to take appropriate measures to repair and prevent damage, thereby reducing the cost of aircraft maintenance and prolonging aircraft service life. The authors of this paper have extensively compiled and studied civilian aircraft maintenance data in the recent years from Guangzhou Aircraft Maintenance Engineering Co. Ltd. In this paper they discuss the aircraft components most susceptible to wind erosion, as well as repair methods and prevention mechanisms. These findings can serve as a reference and a guide to civilian aircraft flight maintenance, repair, and routine inspections.