Topology Optimization of Mobile Transportation Robot

DEMİR, Neslihan; Sucuoğlu, Hilmi Saygın; Böğrekçi, İsmail; Demircioglu, Pinar

doi:10.46519/ij3dptdi.949781

Cited by 4 publications

(3 citation statements)

References 14 publications

(11 reference statements)

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“…In comparison to similar structural optimization studies centering on TO, e.g., [15,16,18,27,29], this study is innovative for its utilization of RSA in determining the worst load cases and the incorporation of submodels in TO. Additionally, the simultaneous consideration of multiple load cases, as demonstrated here, is seldom addressed in the existing literature.…”

Section: Discussionmentioning

confidence: 99%

“…Wildman and Gaynor [14] bring an overview of various TO techniques used in robotics, and an example of TO applied to the flipper component on the iRobot Packbot Army platform. Demir et al used TO to reduce the mass of a mobile transportation robot [15]. Banić et al used TO and static structural analysis to lower the weight of a prototype of a battery-powered robot UGV, named Agriculture Autonomous Robot (AgAR) [10].…”

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confidence: 99%

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Structural Optimization of an Unmanned Ground Vehicle as Part of a Robotic Grazing System Design

Korunović,

Banić,

Pavlović

et al. 2024

Machines

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Unmanned ground vehicles (UGVs) have gained increased attention in different fields of application; therefore, their optimization requires special attention. Lowering the mass of a UGV is especially important to increase its autonomy, agility, and payload capacity and to reduce dynamic forces. This contribution deals with optimizing a UGV unit prototype that, when connected with similar units, forms a moving electric fence for animal grazing. Together, these units form a robotic system that is intended to solve the critical problem of lack of human capacity in herding and grazing. This approach employs topology optimization (TO) and finite element analysis (FEA) to lower the mass of a UGV unit and validate the design of its structural components. To our knowledge, no optimization of this type of UGV has been reported in the literature. Here, we present the results of a case study in which a set of four load cases served as a basis for the optimization of the UGV frame. Response surface analysis (RSA) was used to identify the worst load cases, while substructuring was used to allow for more detailed meshing of the frame portion that was subjected to TO. Thereby, we demonstrate that the prototype of the UGV unit can be built using standard parts and that TO and FEA can be efficiently used to optimize the load-carrying structure of such a specific vehicle.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Structural Optimization of an Unmanned Ground Vehicle as Part of a Robotic Grazing System Design

Korunović,

Banić,

Pavlović

et al. 2024

Machines

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“…Karaçam and Arda (2021) [12] conducted topology optimization and load-carrying element redesign. 2021) [17] studied lighter mobile transportation robot design with shape optimization, and energy efficiency improved, using topology optimization and structural analysis. They obtained robotic system weight %20 reduction under the desired safety limits.…”

Section: Introductionmentioning

confidence: 99%

Finite Elements Analysis and Topology Optimization of Parking Brake Lever and Ratchet

KAHRAMAN,

KÜÇÜK

2024

Journal of Polytechnic

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Topology optimization is known as one of the basic categories of structural optimization. Topology optimization is received increasing attention in many engineering disciplines. Topology optimization contributes to minimizing emissions and environmental effects by increasing material utilization efficiency and manufacturing sustainability. The mechanical parking brake is still used in many vehicles. This study aims to contribute to the reduction in vehicle weight by applying topology optimization. In addition, it also purposes to promote sustainability in manufacturing by reducing material usage and energy consumption. A CAD model was created by considering the existing mechanism element dimensions. The parking brake lever mechanism component was evaluated using topology optimization and finite element analysis methods. Static analyses were performed using a finite element analysis program. The results of this analysis were used as input data for topology optimization. In the topology optimization, the response constraint mass was increased by 5 increments from 50% to 95%. As a result, the maximum equivalent (von Mises) stress for the parking brake lever is 230,29 MPa, and for the ratchet is 11,559 MPa. The maximum total deformation value for the brake lever is 0,95853 mm and for the ratchet is 0,0079482 mm. The parking brake lever mass decreased by 18,48% from 0.27751 kg to 0.22622 kg. The ratchet mass decreased from 0.095042 kg to 0.061911 kg by 34.85%.

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Application of Topology Optimization on a 3d-Printed Shelf Bracket

Fenni,

Eken,

Kaygısız

2024

International Journal of 3D Printing Technologies and Digital Industry

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In this study the topology optimization approach, a type of finite element analysis method (FEA), to reduce the material used in manufacturing was adopted. Out of these optimization methods, the mass optimization technique was deemed suitable. Mass optimization eliminates the parts that don't affect a bracket’s overall strength while under load, resulting in weight reduction and material savings. Two shelf brackets were designed to test this theory and were subjected to mass optimization. A static structural analysis of this optimized model was carried out to confirm the optimization findings. The 3D printing process was then used to manufacture these designs. Then the yield points were then established by applying a tensile strength experiment to these shelf brackets. The outcome of the tests was then compared with the simulation results, and a cost analysis model was created as an output. Ultimately a reduction of 70% in mass was achieved with acceptable structural strength. In related optimization studies, the connecting part of an unmanned aerial vehicle's landing gear has been optimized resulting in fuel savings. Therefore, compared with the experimental and theoretical findings acquired during this research and the studies in the literature, the theory that topology optimization may be used to produce light and rigid parts simultaneously has been proven.

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Topology Optimization of Mobile Transportation Robot

Cited by 4 publications

References 14 publications

Structural Optimization of an Unmanned Ground Vehicle as Part of a Robotic Grazing System Design

Structural Optimization of an Unmanned Ground Vehicle as Part of a Robotic Grazing System Design

Finite Elements Analysis and Topology Optimization of Parking Brake Lever and Ratchet

Application of Topology Optimization on a 3d-Printed Shelf Bracket

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