Aerospace Mechanisms and Actuation—Second Edition

A special issue of Actuators (ISSN 2076-0825). This special issue belongs to the section "Aircraft Actuators".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 686

Special Issue Editor

Special Issue Information

Dear Colleagues,

After a successful first edition, this Special Issue on “Aerospace Mechanisms and Actuation—Second Edition” is dedicated to moveable mechanical assemblies and actuation architectures for both aeronautic and space applications under different configurations and categories. This platform focuses on various applications of both rigid-body linkages and compliant mechanisms in aerospace, where high reliability, accuracy, and demanding performance are addressed by a multidisciplinary and multi-objective design process. They range from aircraft morphing wing devices, such as morphing flaps and winglets, to adaptive structures that include deployable space systems, reconfigurable reflectors, and atmospheric re-entry vehicles. The focus is also given to the evolution of actuation in aerospace, ranging from conventional hydraulic to electromechanical actuators and related control systems.

This Special Issue will publish original research articles and review articles submitted by academics in a wide range of professions, including researchers, academicians, and industry experts.

Dr. Ignazio Dimino
Guest Editor

Manuscript Submission Information

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Keywords

  • rigid-body mechanisms for aerospace
  • compliant mechanisms for aerospace
  • centralized and distributed actuation architectures
  • conventional actuators (mechanically signaled and hydraulically supplied)
  • EMA and full electrical actuation
  • mechanism design and optimization
  • multibody simulations
  • non-linear mechanics
  • manufacturing, integration, and maintenance
  • safety and reliability
  • high-lift devices and other aerospace applications

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Published Papers (1 paper)

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Research

21 pages, 4897 KiB  
Article
Research on Spatial Developable Mechanism Considering Revolute Clearance Joints with Irregular Rough Surfaces
by Junyu Wang, Huibo Zhang, Wenyu Wang, Chaoqun Qi, Jianan Xu, Yang Zhao, Chao Ma and Jian Tian
Actuators 2024, 13(7), 274; https://doi.org/10.3390/act13070274 - 21 Jul 2024
Viewed by 497
Abstract
Due to assembling, manufacturing errors, and wear, irregular rough surfaces inevitably exist in joints, which will increase the contact stiffness nonlinearity at the joint of the spatial developable mechanism, and the traditional contact force model is difficult to accurately predict the contact force [...] Read more.
Due to assembling, manufacturing errors, and wear, irregular rough surfaces inevitably exist in joints, which will increase the contact stiffness nonlinearity at the joint of the spatial developable mechanism, and the traditional contact force model is difficult to accurately predict the contact force change of irregular rough surface clearance. Aiming at the difficulty of accurately predicting the dynamic behavior of the spatial developable mechanism caused by rough joint clearance, an improved clearance contact force modeling method based on an uncoordinated contact model is proposed in this paper. The influence of rough peak distribution on the contact area is analyzed. The stiffness of the traditional Hertz model is modified based on the probability distribution density function of the rough peak, and an improved contact force model based on dynamic contact stiffness is established. Based on the Lagrange multiplier method, the dynamics model of spatial developable mechanism is constructed. Based on the model, the dynamic analysis of the spatial expansion mechanism is carried out, and the influence of the roughness of the contact surface and the size of the clearance on the dynamic characteristics of the system are explored; as well, the influence of different clearance parameters on the dynamic characteristics of the development mechanism is revealed. Through the analysis, this paper provides a theoretical basis for predicting the effect of a spatial revolute clearance joint on the dynamic characteristics of the mechanism and lays a good foundation for the manufacture and application of the mechanism. Full article
(This article belongs to the Special Issue Aerospace Mechanisms and Actuation—Second Edition)
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