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Article
Publication date: 1 February 1990

P. van Zee, K.G. Günther, R. Poleschinski and N. Roth

A new approach to programming and operating multi‐sensor systems in flexible assembly automation has been developed. The concepts and strategies are described together with its…

30

Abstract

A new approach to programming and operating multi‐sensor systems in flexible assembly automation has been developed. The concepts and strategies are described together with its application to a depalletising task.

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Assembly Automation, vol. 10 no. 2
Type: Research Article
ISSN: 0144-5154

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Article
Publication date: 1 January 1992

Norbert Roth and Peter Mengel

The term “sensor integration” is used with different connotations and can be used on different levels of production. So when talking about sensor integration it should be helpful…

40

Abstract

The term “sensor integration” is used with different connotations and can be used on different levels of production. So when talking about sensor integration it should be helpful to distinguish between:

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Sensor Review, vol. 12 no. 1
Type: Research Article
ISSN: 0260-2288

Available. Open Access. Open Access
Article
Publication date: 12 October 2022

Chenhao Wei, Gang Lin, Jun Huang, Lei Song and Howard Smith

Unlike conventional aircraft, birds can glide without a vertical tail. The purpose of this paper is to analyse the influence of dihedral angle spanwise distribution on…

1031

Abstract

Purpose

Unlike conventional aircraft, birds can glide without a vertical tail. The purpose of this paper is to analyse the influence of dihedral angle spanwise distribution on lateral-directional dynamic stability by the simulation, calculation in the development of the bird-inspired aircraft and the flight testing.

Design/methodology/approach

The gliding magnificent frigatebird (Fregata magnificens) was selected as the study object. The geometric and mass model of the study object were developed. Stability derivatives and moments of inertia were obtained. The lateral-directional stability was assessed under different spanwise distributions of dihedral angle. A bird-inspired aircraft was developed, and a flight test was carried out to verify the analysed results.

Findings

The results show that spanwise distribution changing of dihedral angle has influence on the lateral-directional mode stability. All of the analysed configurations have convergent Dutch roll mode and rolling mode. The key role of dihedral angle changing is to achieve a convergent spiral mode. Flight test results show that the bird-inspired aircraft has a well-convergent Dutch roll mode.

Practical implications

The theory that birds can achieve its lateral-directional stability by changing its dihedral angle spanwise distribution may explain the stability mechanism of gliding birds.

Originality/value

This paper helps to improve the understanding of bird gliding stability mechanism and provides bio-inspired solutions in aircraft designing.

Details

Aircraft Engineering and Aerospace Technology, vol. 94 no. 11
Type: Research Article
ISSN: 1748-8842

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