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The purpose of this paper is to evaluate the impact of different Additive Manufacturing (AM) orientations on the structural behavior of topologically optimized wings for Unmanned Aerial Systems (UAS), which might enable lightweight and low cost, yet complex, wing structural designs.

Based on an aerodynamic load, a two dimensional NACA0012 airfoil is topologically optimized considering PolyLatic Acid (PLA), several volume fractions and different manufacturing orientations. Then, the resulting topologies are post-processed to allow for manufacturing and extrude to three dimensional wing geometries with constant cross-sections. These wings are then manufactured using Fusion Deposition Modeling (FDM) technology and their dynamic structural behavior analyzed by means of Experimental Modal Analysis (EMA) in the linear elastic region.

Volume fraction increase is observed to improve the structural performance without increasing the manufacturing time. Despite manufacturing the wing from the leading edge to the trailing edge can reduce manufacturing time using FDM technology, it is found to be more difficult to build.

This research is a contribution toward the design and built of lightweight and low cost wings for UAS.

The purpose of this paper is to report the implementation of an alternative time integration procedure for the dynamic non-linear analysis of structures.

The time integration algorithm discussed in this work corresponds to a spectral decomposition technique implemented in the time domain. As in the case of the modal decomposition in space, the numerical efficiency of the resulting integration scheme depends on the possibility of uncoupling the equations of motion. This is achieved by solving an eigenvalue problem in the time domain that only depends on the approximation basis being implemented. Complete sets of orthogonal Legendre polynomials are used to define the time approximation basis required by the model.

A classical example with known analytical solution is presented to validate the model, in linear and non-linear analysis. The efficiency of the numerical technique is assessed. Comparisons are made with the classical Newmark method applied to the solution of both linear and non-linear dynamics. The mixed time integration technique presents some interesting features making very attractive its application to the analysis of non-linear dynamic systems. It corresponds in essence to a modal decomposition technique implemented in the time domain. As in the case of the modal decomposition in space, the numerical efficiency of the resulting integration scheme depends on the possibility of uncoupling the equations of motion.

One of the main advantages of this technique is the possibility of considering relatively large time step increments which enhances the computational efficiency of the numerical procedure. Due to its characteristics, this method is well suited to parallel processing, one of the features that have to be conveniently explored in the near future.

The evolution of co-creation reflects a shift from a firm-centric to a user-centric and collaborative approach. The purpose of this study is to explore the benefits of co-creation, its potential drawbacks and implications for the tourism and hospitality industry to help frame the concept’s evolution and understand its importance for customizing and personalizing tourism experiences.

This conceptual study presents a holistic co-creation framework that encompasses various co-creation formats found over time. This study uses bibliometric analysis and thematic analysis powered by artificial intelligence tools as techniques.

Co-creation has transitioned from basic interactions between tourists and providers to sophisticated, technology-driven processes. This paper proposes a future-oriented framework that guides academic research and practical applications, outlining key innovation and sustainable growth areas in the tourism and hospitality sectors, demonstrating how co-creation fosters innovation, enhances consumer engagement and addresses sustainability challenges.

This study offers actionable recommendations for tourism firms to harness co-creation for hyper-personalized services, sustainability and community involvement. This study emphasizes the role of emerging technologies in shaping innovative and inclusive tourism experiences.

This study promotes sustainable and ethical co-creation practices, highlighting the importance of inclusivity, cultural preservation and community empowerment in tourism development.

This reflection based on a bibliometric and artificial intelligence analysis helps to project the future developments of co-creation, raising new areas of research and paths to develop new theories and models to explain co-creation processes and outcomes and successfully integrate co-creation in tourism offers.

共创的演变反映了一种从以企业为中心向以用户为中心和协作性为核心的转变。本研究旨在探讨共创的益处、潜在缺陷及其对旅游与酒店行业的影响, 以帮助框定这一概念的演化过程, 并理解其在定制化和个性化旅游体验中的重要性。

这项概念研究提出了一个整体的共创框架, 其中包含随着时间的推移发现的各种共创形式。它使用人工智能工具支持的文献计量分析和主题分析作为技术。

共创已从游客与服务提供商之间的基本互动发展为由技术推动的复杂流程。本文提出了一个面向未来的框架, 指导学术研究和实际应用, 明确了旅游和酒店行业中关键的创新领域和可持续增长方向, 并展示了共创如何促进创新、提升消费者参与度以及应对可持续发展挑战。

基于文献计量分析和人工智能的反思性研究, 有助于预测共创的未来发展, 确定新的研究领域和路径, 从而开发解释共创过程和结果的新理论和模型, 并成功地将共创整合到旅游产品中。

该研究为旅游企业如何利用共创来实现高度个性化服务、可持续发展和社区参与提供了实际建议。重点强调了新兴技术在塑造创新和包容性旅游体验中的作用。

本研究提倡可持续和伦理共创实践, 强调在旅游发展中包容性、文化保护和社区赋权的重要性。

La evolución de la cocreación refleja el cambio de un enfoque centrado en la empresa a otro centrado en el usuario y en la colaboración. Este estudio explora los beneficios de la cocreación, sus posibles inconvenientes y sus implicaciones para la industria del turismo y la hostelería, con el fin de ayudar a enmarcar la evolución del concepto y comprender su importancia para la personalización y adaptación de las experiencias turísticas.

Este estudio conceptual presenta un marco holístico de cocreación que abarca diversos formatos de cocreación identificados a lo largo del tiempo. Para ello, utiliza como técnicas el análisis bibliométrico y el análisis temático potenciado por herramientas de inteligencia artificial.

La cocreación ha evolucionado de las interacciones básicas entre turistas y proveedores a procesos sofisticados impulsados por la tecnología. El artículo propone un marco orientado al futuro que guía la investigación académica y las aplicaciones prácticas, esbozando áreas clave de innovación y crecimiento sostenible en los sectores del turismo y la hostelería, y demostrando cómo la cocreación fomenta la innovación, mejora la participación de los consumidores y aborda los desafíos de la sostenibilidad.

El estudio ofrece recomendaciones prácticas para que las empresas turísticas aprovechen la cocreación para ofrecer servicios hiperpersonalizados, sostenibilidad y participación de la comunidad. Hace hincapié en el papel de las tecnologías emergentes en la configuración de experiencias turísticas innovadoras e inclusivas.

La investigación promueve prácticas de cocreación sostenibles y éticas, subrayando la importancia de la inclusión, la preservación cultural y el empoderamiento de la comunidad en el desarrollo turístico.

Esta reflexión, basada en un análisis bibliométrico y de inteligencia artificial, ayuda a proyectar los futuros desarrollos de la cocreación, identificando nuevas áreas de investigación y vías para desarrollar nuevas teorías y modelos que expliquen los procesos y resultados de la cocreación e integren con éxito la cocreación en las ofertas turísticas.