High Payload Capacity using Steganography Combined with Cryptography

2021 ◽  
Author(s):  
Tatavarthi Sai Deepak ◽  
Vamsidhar Enireddy
Keyword(s):  
Payload Capacity ◽  
High Payload

Assessing 3 and 5 Degrees of Freedom Toolpath Strategy Influence on Single Point Incremental Forming

2015 ◽  
Vol 651-653 ◽  
pp. 1159-1162 ◽  
Author(s):  
João B. Sá de Farias ◽  
Ricardo P. Bastos ◽  
Jorge A. Ferreira ◽  
Ricardo J. Alves de Sousa
Keyword(s):  
High Strength Steel ◽  
Degrees Of Freedom ◽  
Incremental Forming ◽  
Single Point ◽  
High Strength ◽  
Manufacturing Technology ◽  
Single Point Incremental Forming ◽  
Payload Capacity ◽  
The University ◽  
High Payload

Single Point Incremental Forming (SPIF) is a promising manufacturing technology concerning the production of customized products, low batches or prototyping of ready-to-use parts, given its easy implementation and absence of dedicated tooling. The range of application is wide, covering many materials and virtually unlimited geometries. Indeed, nowadays’ boundaries of the process are more related to the machines limitations than to the process itself. The SPIFA machine [1] developed at the University of Aveiro allies high payload capacity to flexibility driven by a kinematics based on a Stewart Platform. In this work, it will discussed the effects of employing five degrees of freedom toolpaths to produce aluminium and high strength steel parts.

Mechatronic Design of a Parallel Robot for Milling

2013 ◽  
Vol 198 ◽  
pp. 21-26
Author(s):  
Maciej Petko ◽  
Grzegorz Karpiel
Keyword(s):  
Parallel Manipulator ◽  
Degrees Of Freedom ◽  
Parallel Robot ◽  
Kinematics And Dynamics ◽  
Mechatronic Design ◽  
Payload Capacity ◽  
High Payload

The paper presents the process of development of a parallel manipulator for milling, and justifies why mechatronic approach can lead to successes. The resulting construction is a novel, versatile 3-RRPRR, fully-parallel manipulator with three translational degrees of freedom, characterizing in comparatively high payload capacity, large workspace and high attainable accelerations. The construction of the manipulator is shown, with analysis of its kinematics and dynamics. A controller is proposed, simulated and experimentally investigated. Finally, the conclusions and future works are presented.

scholarly journals Design and development of a novel monolithic compliant XY stage with centimeter travel range and high payload capacity

2018 ◽  
Vol 9 (1) ◽  
pp. 161-176 ◽  
Author(s):  
Shixun Fan ◽  
Hua Liu ◽  
Dapeng Fan
Keyword(s):  
Nanoimprint Lithography ◽  
Compliant Mechanism ◽  
Tracking Error ◽  
Ultra Violet ◽  
Design Flow ◽  
Compact Structure ◽  
Compact Size ◽  
Payload Capacity ◽  
Out Of Plane ◽  
High Payload

Abstract. This article proposes a novel monolithic compliant spatial parallel XY stage (SPXYS). An important feature of the SPXYS lies in that it can deliver centimeter travel range and sustain large out-of-plane payload while possessing a compact structure, which makes the SPXYS suitable for some special applications such as Ultra-Violet Nanoimprint Lithography and soft-contact lithography. Different from conventional compliant positioning stages, the proposed SPXYS consists of a monolithic spatial parallel linear compliant mechanism (SPLCM) driven by four matching designed voice coil motors (VCMs). The moving platform of the stage is connected to the base by four spatial prismatic-prismatic (PP) joints, which are enveloped from planar PP joint based on the position space reconfiguration (PSR) method to realize desired travel range, payload capacity and compact size. The mechatronic model of the SPXYS is established by integrated using matrix structural analysis (MSA) and the method of images. The design flow chart of the SPXYS is given based on the key parameter sensitivity analysis. Furthermore, a reified SPXYS is designed and manufactured. The analytical design of the stage is confirmed by experiments. The reified stage has a travel range of 20.4 × 20.6 mm2, a compact structure with area ratio 1.87 %, and the resonant frequencies of the two working modes at 22.98 and 21.31 Hz. It can track a circular trajectory with the radius of 4.5 mm. The root mean squares (RMS) tracking error is 2 µm. The positioning resolution is 100 nm. The payload capacity test shows that the reified stage can bear 20 kg out-of-plane payload.

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