Topological Variable-Density Algorithm Based Design Method for Lightweight Machine Tools

Li, Pengzhong; Liu, Jie; Liu, Shousheng

doi:10.1007/978-3-642-21747-0_124

Cited by 2 publications

(4 citation statements)

References 6 publications

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“…Similarly, cooling systems of MT with energy conservation are also a key technology for sustainable machine tool design [81], and also hydraulic units should consider energy-efficient strategies [80]. According to the structure characteristics, reinforced board layout could be improved utilizing advanced optimization methods, and then the light weight of machine directly or indirectly improves energy efficiency of the machine tool [97]. Considering energy and environmental factors in the design phase could directly and indirectly promote efficiency in order to achieve flexibility and versatility under the constraints of quality and rigidity.…”

Section: Structure Principlementioning

confidence: 99%

The Analysis of Key Technologies for Sustainable Machine Tools Design

Feng

Shi

2020

Applied Sciences

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Machine tools as indispensable tools for manufacturing products are typical high-energy, high-carbon manufacturing systems due to their larger mass, longer life cycles and huge resources and energy consumption. The current research trend of sustainable machine tools aims to reduce cost, energy consumption and increase sustainability without compromising their functionality, usability, productivity, accuracy, etc. However, there is a lack of systematic reviews about what are the key technologies for sustainable machine tools design. Thus, a comprehensive literature review of machine tool design for sustainability is needed in order to make clear how to design and evaluate sustainable machine tools from the viewpoint of life cycle sustainability analysis. The aim of this paper is to review the sustainable design and assessment aspects of machine tool design from partial goals to integrated aims according to whole sustainability dimensions such as the environment, economy and society, as well as involving key techniques in different life cycle stages. Recent research and study on improving directly or indirectly sustainability performance of machine tools according to focus points could be summarized as: design optimization of components such as lightweight using topology and bionic methods; structure design with modular design and layout; reducing cutting fluids and lubricant oil by employing minimum quantity lubrication, dry and cryogenic machining; reducing energy consumption; waste reduction by reusing, remanufacturing and recycling; sustainability assessment i.e., energy model, life cycle cost and life cycle social benefit. This paper assists designers and manufacturers to improve sustainability of machine tools by specific optimization measures in their activities.

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Section: Structure Principlementioning

confidence: 99%

The Analysis of Key Technologies for Sustainable Machine Tools Design

Feng

Shi

2020

Applied Sciences

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“…where a 1 , a 2 , • • • , a n is a combination of k ij and m ij . As shown in system Figure 2, for Equation (5) [m] and [k] are:…”

Section: Vibration Analysismentioning

confidence: 99%

“…Finally, the six-order main modes expression of the lightweight workbench system during processing is obtained: {A (1) }, {A (2) }, {A (3) }, {A (4) }, {A (5) }, {A (6) }.…”

Section: Vibration Analysismentioning

confidence: 99%

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Research on a Five-Axis Machining Center Worktable with Bionic Honeycomb Lightweight Structure

et al. 2020

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The processing of high-precision aerospace parts requires not only ultra-precision machine tools, but also high-efficiency processing. However, in order to realize high-efficiency processing, besides optimizing the system and process parameters, some subversive research can also be done on the machine tool structure. In this paper, the lightweight research is mainly carried out on the structure of machine tool worktable. The traditional workbench is very “heavy” and “slowness”. If the traditional workbench is subverted and reformed to reduce the weight, the processing efficiency will be improved qualitatively. Therefore, this paper studies the lightweight worktable of CFRP (carbon fiber reinforced polymer) in combination with the biological “honeycomb” shape. At first, the tensile, bending, compressive and laminar shear analysis of CFRP were carried out, and the comprehensive parameters were obtained. Simultaneously, the theoretical research and the honeycomb structure simulation and verification of CFRP worktable are carried out. The results show that the HACT (honeycomb arrangement of circular tubes) is 18.51% better than the SACT (straight arrangement of circular tubes) and 45.05% better than the OW (original worktable) by comparing and analyzing the weight of the three modes (HACT, SACT and OW). The actual weight of bionic honeycomb lightweight worktable is 1100 kg, while the simulation result is 1080.25 kg, with an error of 1.8%. Meanwhile, it is analyzed that the original workbench weight of the five-axis machining center is 2023 kg, while the simulation result is 1998.6 kg, with an error of 1.2%. The lightweight degree is reduced by 45.05%. However, the actual lightweight degree has been reduced by 45.63%. The error between simulation and actual is less than 1.3%. This kind of structural transformation has brought forward cutting-edge innovations to the machine tool processing industry. It provides a reference scheme for related enterprises in the future equipment renovation.

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Topological Variable-Density Algorithm Based Design Method for Lightweight Machine Tools

Cited by 2 publications

References 6 publications

The Analysis of Key Technologies for Sustainable Machine Tools Design

The Analysis of Key Technologies for Sustainable Machine Tools Design

Research on a Five-Axis Machining Center Worktable with Bionic Honeycomb Lightweight Structure

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