Lightweight design of mountaineering protection gear: Procedure, Optimization, and Testing

IF 5.4 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-05-30 DOI:10.1016/j.jestch.2025.102086

Martin Sotola , Pavel Marsalek , David Rybansky , Martin Fusek , Jakub Mesicek , Jiri Hajnys

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Abstract

Mountaineering is usually labelled as an extreme sport with a risk of injury. Protection gear offers climbers safety, but usually at the cost of additional weight. Producing a lightweight design with a large enough load-bearing capacity is desired by the industry. This paper aims to prepare a lightweight design of a spring-loaded camming device utilizing effective topology optimization. The proposed procedure contains optimization, manufacturing and testing of a new design. Topology optimization is used on cams to find optimal material distribution concerning their stiffness. Topology optimization uses multiple load cases and multi-stage optimization. The combination leads to effective design without compromising the efficiency of optimization. The presented results yield a time reduction of up to 70 %. After post-processing of results and smoothing geometry, the new cams are additively manufactured and assembled into prototypes of spring-loaded camming devices, and they are evaluated by laboratory testing defined by standards.

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登山护具的轻量化设计：程序、优化和测试

登山运动通常被认为是一项有受伤风险的极限运动。防护装备为攀登者提供了安全保障，但通常是以增加重量为代价的。生产具有足够大的承载能力的轻量化设计是业界所期望的。本文的目的是利用有效的拓扑优化来制备一种弹簧加载凸轮装置的轻量化设计。所提出的程序包括新设计的优化、制造和测试。采用拓扑优化方法对凸轮进行优化，以寻找与凸轮刚度相关的最佳材料分布。拓扑优化采用多负载情况和多阶段优化。这种组合可以在不影响优化效率的情况下实现有效的设计。所提出的结果产生的时间减少高达70%。在对结果进行后处理和平滑几何后，新凸轮被增材制造并组装成弹簧加载凸轮装置的原型，并通过标准定义的实验室测试对其进行评估。

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来源期刊

Engineering Science and Technology-An International Journal-Jestech Materials Science-Electronic, Optical and Magnetic Materials

CiteScore

11.20

自引率

3.50%

发文量

153

审稿时长

22 days

期刊介绍： Engineering Science and Technology, an International Journal (JESTECH) (formerly Technology), a peer-reviewed quarterly engineering journal, publishes both theoretical and experimental high quality papers of permanent interest, not previously published in journals, in the field of engineering and applied science which aims to promote the theory and practice of technology and engineering. In addition to peer-reviewed original research papers, the Editorial Board welcomes original research reports, state-of-the-art reviews and communications in the broadly defined field of engineering science and technology. The scope of JESTECH includes a wide spectrum of subjects including: -Electrical/Electronics and Computer Engineering (Biomedical Engineering and Instrumentation; Coding, Cryptography, and Information Protection; Communications, Networks, Mobile Computing and Distributed Systems; Compilers and Operating Systems; Computer Architecture, Parallel Processing, and Dependability; Computer Vision and Robotics; Control Theory; Electromagnetic Waves, Microwave Techniques and Antennas; Embedded Systems; Integrated Circuits, VLSI Design, Testing, and CAD; Microelectromechanical Systems; Microelectronics, and Electronic Devices and Circuits; Power, Energy and Energy Conversion Systems; Signal, Image, and Speech Processing) -Mechanical and Civil Engineering (Automotive Technologies; Biomechanics; Construction Materials; Design and Manufacturing; Dynamics and Control; Energy Generation, Utilization, Conversion, and Storage; Fluid Mechanics and Hydraulics; Heat and Mass Transfer; Micro-Nano Sciences; Renewable and Sustainable Energy Technologies; Robotics and Mechatronics; Solid Mechanics and Structure; Thermal Sciences) -Metallurgical and Materials Engineering (Advanced Materials Science; Biomaterials; Ceramic and Inorgnanic Materials; Electronic-Magnetic Materials; Energy and Environment; Materials Characterizastion; Metallurgy; Polymers and Nanocomposites)