نتایج جستجو برای: aircraft manufacturing

تعداد نتایج: 109019  

Journal: :Circular Economy and Sustainability 2022

Abstract The global aircraft fleet has been expanding worldwide, leading to a high demand for primary resources. Simultaneously, recycling initiatives decommissioned are still incipient. Following circular economy principles, the aims of this paper identify potentially critical resources used and related environmental impacts, derive recommendations regarding recycling, analyze influence increa...

1995
W. J. Marx D. P. Schrage D. N. Mavris

The knowledge required to integrate aircraft manufacturing characteristics and constraints into the structural design process is beyond the proficiency of a single engineer. Concurrent Engineering (CE) enables the integration of design with manufacturing to permit trades based not only on product performance, but also on other criteria not easily evaluated, such as producibility and support. A ...

1994
William J. Marx Dimitri N. Mavris Daniel P. Schrage

The aerospace industry is currently addressing the problem of integrating manufacturing and design. To address the difficulties associated with using many conventional procedural techniques and algorithms, one feasible way to integrate the two concepts is with the development of an appropriate Knowledge-Based System (KBS). The authors present their reasons for selecting a KBS to integrate desig...

2003
Ryan Peoples Karen Willcox

Traditional commercial aircraft design attempts to achieve improved performance and reduced operating costs by minimizing maximum takeoff weight. From the point of view of an aircraft manufacturer, however, this method does not guarantee the financial viability of an aircraft program. A better design approach would take into account not only aircraft performance but also factors such as aircraf...

2001
Durk-Jouke van der Zee

Batching jobs in a manufacturing system is a very common policy in most industries. Main reasons for batching are avoidance of setups and/or facilitation of material handling. Batch processing systems often consist of multiple machines of different types for the range and volumes of products that have to be handled. Building on earlier research in aircraft industry, where the process of hardeni...

2001
Earll M. Murman R. John Hansman John-Paul Clarke

This paper reports the first offering of a graduate level subject covering the conceptual phase of aircraft product development. The output of the conceptual phase is a system level specification that usually serves as the input for a traditional undergraduate capstone subject on aircraft design. Of critical importance in the conceptual phase is addressing the business case for the candidate pr...

1998
William J. Marx Dimitri N. Mavris Daniel P. Schrage

This paper presents an exploratory study for identification and quantification of the economic benefits or implications associated with wing cost variations. A hierarchical cost model structure is used to determine life cycle effects of design and manufacturing alternatives for the major structural components of the wing of a High Speed Civil Transport aircraft concept. Preliminary results are ...

Journal: :The International Journal of Advanced Manufacturing Technology 2019

Journal: : 2023

To simulate the consumption of duplicate technological tooling (hereinafter referred to as TT), it is proposed use apparatus multivariate regression analysis, which provides main patterns formalization formation value in form linear dependencies. An important difference approach development models an increased degree detail due number operations performed using specific TT sizes independent var...

2011
Grzegorz Budzik Hubert Matysiak

The article presents pr ocess application of the rapi d prototyping (RP) for manufacturing of blades of aircraft turbine in monocrystallization and also directional crystallization of casting process. It is describing the method of modelling of the chosen elements of casting model kit with the usage of RP and RT system s. The article presents the analysis of additive rapid prototyping methods (...

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