China
Africa
Explore chapters and articles related to this topic
Integrated Manufacturing of Bespoke Mechatronic Systems
Published in Yoseph Bar-Cohen, Advances in Manufacturing and Processing of Materials and Structures, 2018
Jake Smith, Nicholas Fry, Robert Richardson, Jordan H. Boyle
In a similar vein, when developing the legs for a cockroach-inspired robot, Cham et al. (2002) simplified their mechanical design by using flexible resin to create a “living hinge” in place of a conventional revolute joint. This was done in the context of shape deposition manufacturing (SDM), a digitally driven hybrid additive/subtractive technique. Instead of using layers like pure AM systems, a mold is created using subtractive processes, filled with resin, and cured before further subtractive processes are used to shape the remaining resin. Nonetheless, they showed that by utilizing a flexible material, extraneous components can be removed, potential weak spots eliminated, and the overall robustness improved. The inherent compliance in the insect inspired leg enabled the final robot to navigate rough ground effectively using an open loop controller.
Soft Tissue Replacements
Published in Joyce Y. Wong, Joseph D. Bronzino, Biomaterials, 2007
K.B. Chandran, K.J.L. Burg, S.W. Shalaby
Ligating clips are most commonly used for temporary or long-term management of the flow in tubular tissues. Titanium clips are among the oldest and still-versatile types of clips. Thermoplastic polymers such as nylon can be injection-molded into different forms of ligating clips. These are normally designed to have a latch and living hinge. Absorbable polymers made of lactide/glycolide copolymers and polydioxanone have been successfully converted to ligating clips with different design features for a broad range of applications.
Value Engineering: A Total System
Published in Richard J. Park, Value Engineering, 2017
Worksheet No. 5, Figure 12.16, was designed to provide a quick look at alternatives from a cost basis. In the spot cooler example, Figure 12.16 shows the living hinge and hollow sphere design as the most costly and the elimination of the modulate air feature as the next best alternative from a cost standpoint. These alternatives were carried over to worksheet No. 6, Figure 12.17, to look at the advantages and disadvantages of each.
Flexnertia: A novel dissipation mechanism for structural vibration reduction through coupling of flexural motion with an inerter
Published in Mechanics of Advanced Materials and Structures, 2023
Yuhao Liu, Jian Yang, Chen Zhou, Waiel Elmadih, Jian Zhu, Dimitrios Chronopoulos
Recent evidence suggests that the inerter has a good application prospect in engineering fields [11–14]. However, most of the researches in the literature focus on the theoretical analysis and there is few experiment work available investigating the dynamic behavior of inerter based metastructure. The theoretical results on performance benefits of vibration suppression devices may become less convincing without the required experimental verification. The concept of the inerter was first introduced by Malcolm Smith in 2002 using a force-current analogy between mechanical and electrical networks [15]. The definition of inerter is somewhat abstract that a two-terminal device with the characteristic that the equal and opposite forces at two ends are proportional to the relative acceleration between them is recognized as an inerter [16]. Therefore in the past two decades, a number of inerter prototypes have been designed in practice, including the rack-and-pinion inerter [17, 18], ball-screw inerter [17, 19], helical fluid inerter [20–22], hydraulic inerter [23], electromagnetic inerter [24] and living-hinge inerter [25]. Different from the normal mass element, the inerter can generate large effective mass with small physical mass. Based on this characteristic, inerters have been used to upgrade the traditional dynamic vibration absorber because it can reduce the natural frequency of the vibration system [26].