Boeing Commercial Airplane Company Research Articles

Numerical modeling of a wing skin peen forming process

For many years shot peering has been used to provide fatigue resistance and form to airplane wing skins at the Boeing Commercial Airplane Company. In this process, the peening intensities used to form a new wing skin have been obtained through the use of approximate geometric relationships, along with a considerable amount of trial and error testing. This paper describes a numerical model that has been applied to replicate the shot peening process used at Boeing. The model is used to predict peening intensities and the initial size of the skin (flat pattern) given an arbitrary aerodynamic contour requirement. Discussion focuses on the finite element method and special optimization techniques used in the approach.

Introduction of "Quality Improvement Plan" in Boeing Commercial Airplane Company

Introduction of "Quality Improvement Plan" in Boeing Commercial Airplane Company

Contracts

Plessey Aerospace Ltd of Tichfield, Hants, has been awarded an order by the Boeing Commercial Airplane Company worth almost £1 million for fuel boost pumps for the 737–300 aircraft. Already regarded as one of the world's best selling jet airliners, the aircraft employs six Plessey fuel pumps in centre and wing tanks.

World‐wide Operation of Twin Jet Aircraft

Concerned with the increasing use of twin jet aircraft over longer ranges, this paper by Richard W. Taylor of the Boeing Commercial Airplane Company put the present level of operations of these types in historical perspective by considering how the need for additional power was met, first, by providing a greater number of engines (since increased horsepower or thrust was not available). This state of affairs continued for a considerable time and it has only been in the relatively recent past that the ability to produce more and more power from an engine has met performance requirements.

Dimensions of Airline Growth. Market Research Unit, Boeing Commercial Airplane Company, Mail Stop 75-04, P.O. Box 3707, Seattle, Washington 98124. March 1980. 71p

Dimensions of Airline Growth. Market Research Unit, Boeing Commercial Airplane Company, Mail Stop 75-04, P.O. Box 3707, Seattle, Washington 98124. March 1980. 71p

Dimensions of Airline Growth. Jan Krueger. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, MS75-04, Seattle, Washington 98124. February 1979. 59p

Dimensions of Airline Growth. Jan Krueger. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, MS75-04, Seattle, Washington 98124. February 1979. 59p

Redifon to build Flight Simulators for 757 and 767

Under the terms of a multi‐million pound export deal Crawley‐based Redifon Simulation Limited will supply flight simulators for the new 757 and 767 airliners to the Boeing Commercial Airplane Company in Seattle.

Looking Ahead

Attempts to predict trends in aircraft design often encounter difficulties, not the least being the question of the validity of the technical background on which the arguments are based. However, when the Vice‐President Engineering of the Boeing Commercial Airplane Company makes a wide‐ranging survey it must surely be founded on recognised present‐day practices and the projection of advanced technology.

Dimensions of Airline Growth, February 1979. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, MS 75-04, Seattle, Washington 98124. February 1979. 59p

Dimensions of Airline Growth, February 1979. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, MS 75-04, Seattle, Washington 98124. February 1979. 59p

Tourism and Travel Outlook Presentation to Pacific Rim Bankers. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. September 1978. Unpaged

Tourism and Travel Outlook Presentation to Pacific Rim Bankers. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. September 1978. Unpaged

Dimensons of Airline Growth. Market Research, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. March 1978. 55p

Dimensons of Airline Growth. Market Research, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. March 1978. 55p

(TSP) An analysis of the frequent business flyer: Kit G. Narodick, Boeing Commercial Airplane Company (Seattle, Washington 98124, USA), May 1977, 66 pp. Free

(TSP) An analysis of the frequent business flyer: Kit G. Narodick, Boeing Commercial Airplane Company (Seattle, Washington 98124, USA), May 1977, 66 pp. Free

Recent advances in computerized aerospace structural analysis and design

This paper presents accomplishments at the Boeing Commercial Airplane Company in the areas of (1) large problem solutions, (2) practical structural design automation and (3) a hypothesis for stable crack growth. A turbine blade (3200 nodes 350 elements, 9500 freedoms, 15 million words of storage) and a sports stadium (3400 nodes, 9600 elements, 20,000 freedoms, 70 million words of storage) are presented in terms of problem definition, strategy of approach, data management and computer resources. The Boeing automated strength design capability in the ATLAS System is discussed in terms of user specified constraints on the automated strength resizing and local optimization, strength criteria, user control and convergence criteria. Cost and weight data are presented from large aircraft design studies (20,000 design variables). A new concept of crack stability based on non-linear stress/strain analysis is presented. Stable crack growth is modeled by a suitable failure criterion in the stress analysis procedure. A crack is extended by a simultaneous unloading of the newly created crack surface and the loading of the uncracked region. Test comparisons and numerical experiments support a new hypothesis based on material strength characteristics, plastic zone size/history and the residual plastic strains.

Experimental verification of a finite length tuning concept for acoustic lining design

A joint program between the Boeing Commercial Airplane Company and the United Kingdom National Gas Turbine Establishment was carried out to experimentally verify an acoustic finite length tuning concept for low frequency lining designs. By properly accounting for the reflective properties of discontinuous admittance via mode matching techniques, five panels were designed to demonstrate the length tuning concept. Three panels were designed for no flow and two panels were designed for a flow Mach number of 0.2. The panels were of conventional design with perforated face sheets and rectangular cavity resonators. The test results confirmed the theoretical predictions that an optimum finite length lining of given impedance will produce a maximum insertion loss greater than a longer length lining of equal impedance.

Acoustic shadowing of ground-level microphones during static jet-engine acoustic tests

For ground run-up acoustic testing of jet aircraft engines, microphones may be located close to the ground level to eliminate the acoustic interference effects at the far-field microphones caused by the presence of the reflecting ground plane. However, microphones in this position are particularly sensitive to acoustic shadowing caused by wind and temperature gradients in the acoustic test arena. Examples of acoustic and meteorological data taken during full-scale engine tests, together with acoustic ray-tracing analyses, are used to describe the sensitivity of the ground-level microphones to acoustic shadowing. In addition, the permissible meteorological conditions for the successful application of the ground-level measurement technique are defined as a function of source to receiver distance. [Work supported by NASA Lewis Research Center under Contract NAS3-15570 with the Boeing Commercial Airplane Company.]

Dimensions of Airline Growth. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. June 1975. 39p. Free

Dimensions of Airline Growth. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. June 1975. 39p. Free

Pacific Travel Tomorrow. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. April 1975. 61p. Free

Pacific Travel Tomorrow. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. April 1975. 61p. Free

Corporate Viewpoints—Interviews with Top Managers: Interview with E. H. Boullioun

Interview with E. H. Boullioun, President, Boeing Commercial Airplane Company.

Hawaii...The Visitor Growth Market of the 1970's. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. April 1974. 105p

Hawaii...The Visitor Growth Market of the 1970's. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. April 1974. 105p

The Japanese Air Travel Market: Current Travel Environment. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. July 1974. 69p

The Japanese Air Travel Market: Current Travel Environment. Market Research Unit, Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. July 1974. 69p