...Valentin Le Mesle; Vincent Bégoc; Sebastien Briot Delta-like architectures are widely used for fast pick-and-place applications. When rotational degrees of freedom are required to perform a task, one or more UPU kinematic chains are usually added to transmit the torques from motors located...

... at any location and maximizes the effective area of the unfolded state. The proposed method is applicable not only to 2D folding but also to a generic flat-foldable degree-4-vertex (D4V) pattern. The pattern's thickness-accommodated configuration to avoid self-intersection is determined through kinematic...

... branch is composed of two moving rods and a rotating pair [ 1 , 10 ]. Its structure is simple, but with three degrees-of-freedom, it can meet the requirements of most robots for movement. Moreover, with relatively simple kinematic and dynamic models, it is easy to control, and therefore, as a promising...

... an initial state to one or multiple target states with a single kinematic degrees-of-freedom. Thus, the deformations of a structure can be fully controlled by controlling a single input node for every state. Since the structures are designed at the verge of kinematic determinacy, they become statically...

... actuator. First, the influences of the angular relationship between the knuckles and working stroke of the knuckles on the actual grasping range of the finger were evaluated, and the kinematic analysis of the knuckle was performed using the closed-loop vector method. Next, an optimization design method...

... branches are constructed by implementing different reconfiguration constraints, respectively, and corresponding kinematic paths are described by employing the specific angle between axes of joints. Furthermore, these evolved motion branches of this metamorphic linkage provide novel examples of mobile...

.... , and Han , X. , 2020 , “ A Computational Framework of Kinematic Accuracy Reliability Analysis for Industrial Robots ,” Appl. Math. Model. , 82 , pp. 189 – 216 . 10.1016/j.apm.2020.01.005 [5] Santolaria , J. , and Ginés , M. , 2013 , “ Uncertainty Estimation in Robot Kinematic...

... gained popularity due to their portability and simplicity. Existing synthesis methods for 1-DOF mechanisms focus primarily on computing the optimal mechanism dimensions such that kinematic error between the task and the mechanism output is minimized. In cases where the kinematically feasible solutions...

...Wen-ao Cao; Peng Cheng This paper presents a novel deployable antenna mechanism for synthetic aperture radar (SAR) satellites. First, the topological structure of the new deployable mechanism is designed based on the five conditions expected to be satisfied. Then, the kinematic model of the new...

... as muscle-tendon actuation units, capable of transmitting forces to different body segments. The main advantages of these systems are the lower weight and the improved kinematic compatibility with the user, as opposed to exoskeletons [ 3 ]. Lacking tutoring bars not only decreases the weight of the device...

... mechanism, and many origami patterns are made up of interconnected vertices or spherical mechanisms [ 17 , 27 , 28 ]. Just as the kinematics of spherical mechanisms are defined by link angles [ 24 ], sector angles, denoted by α , define the geometry of an origami vertex. Fold angles, denoted by γ , define...

... principle called “pulse drive transmission” (PDT), which aims to realize small and high-efficiency transmission systems, has been introduced [ 13 ]. It is completely different from these general principles in that it applies the idea of electrical transmission to kinematics. The use of electrical ideas...

... mechanism. Here, position kinematics of the proposed mechanism, including the workspace, is analyzed in detail, and a solution to the parasitic motion problem is provided. Human-in-the-loop simulations with a haptic interface are also performed to confirm the feasibility of the proposed design...

...Wen-ao Cao; Sheng Xi; Huafeng Ding; Ziming Chen This paper aims to present the topological structure design and kinematic analysis of a novel double-ring truss deployable satellite antenna mechanism. First, a new topological scheme and a new rectangular prism deployable linkage unit are proposed...

... and stability benefit of the structure but also to reduce the wheel slip. After that, through the flexible kinematic model based on screw theory, characteristics such as leveling ability and surface profile accessibility of the chassis are analyzed. The minimum accessible radius is obtained as 3088 mm...

... to construct the network are derived by investigating the kinematic compatibility, kinematics is carried out to show the relationships among all Bennett linkages, and the discussion on the design parameter shows the extensibility and the deploying performance, which is validated by two physical prototypes...

...-blocks, origami, and mechanisms, which proposes a set of novel reconfigurable mechanisms as ori-blocks. As spatial linkages have been widely used in a broad range of technical fields, we anticipate that ori-blocks will find several potential applications owing to their kinematics in reconfigurability...

... to investigate rigid–flexible coupling dynamics. The elastic deformation of the wing membrane, kinematic characteristics of the linkage mechanism, and modes of the whole system are calculated. Static analysis of the structure reveals that the foldable wing has excellent stiffness characteristics and load-bearing...

... have curved links. Because the kinematics of the links depend on the distance between pin joints, the rigid link may take on any shape, as in Fig. 1 . For clarity, in this work, we will refer to the straight lines as r i and the curved links as links. Fig. 1 Examples of the three classes...

... supplements for the rotor nonlinear analysis. stiffness and stiffness fluctuation VC vibration internal clearance load conditions design for manufacturing design of machine elements kinematics machine theory Ball bearing is widely used in various kinds of mechanical systems for its low...