VEROTTI M.

During the last decades, the modeling of flexures undergoing large deflections has been the subject of many investigations. Various rigid body models have been proposed in an effort to reproduce with high accuracy the path followed by the free-end section of the flexible element. Systems with multiple degrees of freedom have been also presented...

Position accuracy is a prerequisite for compliant mechanisms, especially in micro-scale applications. Generally, this feature depends on the flexures ability to imitate the revolute joints of the pseudo-rigid body model. In case of flexible elements, the center of the relative rotation varies its position during the deflections, affecting the...

In this paper, site-specific management zones (MZs) were delineated in three fields belonging to a farm in the center of Italy and characterized by different soil texture. Crop yield and various soil parameters, both physical (soil structural stability, clay fraction, water content, and organic matter) and mechanical (shear strength and...

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In this paper, the concept of isotropic compliance is extended to the field of compliant mechanisms. Starting from the design of a rigid-body mechanism, a planar compliant system is determined by applying the rigid-body replacement method. The static behaviour of the isotropic compliant mechanism is validated by finite element simulations and...

In this paper, the concept of isotropic compliance is extended to the field of compliant mechanisms. Starting from the design of a rigid-body mechanism, a planar compliant system is determined by applying the rigid-body replacement method. The static behaviour of the isotropic compliant mechanism is validated by finite element simulations and...

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The paper outlines the design, implementation, and preliminary testing of a motion tracking system for laparoscopic surgery Training. After system outline, the choice of hardware components and the design experimental setup for system development are discussed. Geometric equations for system calibration and 3D motion tracking are presented,...

With the increasing implementation of compliant mechanisms in high-precision and high-accuracy applications, the need to evaluate the positioning performance of the flexure hinges becomes evident. In this paper, the determination of the accuracy of planar flexures is addressed by analyzing and comparing the available criteria presented in...

Accuracy of the cross-axis flexural pivot is a fundamental requirement in a variety of applications, from robotics to precision engineering. Many studies have been conducted to improve this feature by investigating the effects of various geometric parameters of the cross-axis pivot, such as orientation of the flexures and position of the...

The cross-axis flexural pivot proved to be a valid tool for replacing the traditional revolute joints in a variety of mechanical systems. However, the rotation axis drift limits its implementation in high-precision applications. This investigation presents a procedure for designing high-accuracy flexural pivots actuated by cable-driven systems....

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In this paper, a microsystem with prescribed functional capabilities is designed and simulated. In particular, the development of a straight line path generator micro electro mechanical system (MEMS) device is presented. A new procedure is suggested for avoiding branch or circuit problems in the kinematic synthesis problem. Then, Ball's point...

This paper deals with the manipulation of micro-objects operated by a new concept multi-hinge multi-DoF (degree of freedom) microsystem. The system is composed of a planar 3-DoF microstage and of a set of one-DoF microgrippers, and it is arranged is such a way as to allow any microgripper to crawl over the stage. As a result, the optimal...