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The Shape Part Slot Machine: Contact-based Reasoning for Generating 3D Shapes from Parts [article]

Kai Wang, Paul Guerrero, Vladimir Kim, Siddhartha Chaudhuri, Minhyuk Sung, Daniel Ritchie
2022 arXiv   pre-print
We present the Shape Part Slot Machine, a new method for assembling novel 3D shapes from existing parts by performing contact-based reasoning.  ...  the retrieved parts into a complete shape that respects the generated slot graph.  ...  Acknowledgements This work was funded in part by NSF award #1907547 and a gift fund from Adobe. Daniel Ritchie is an advisor to Geopipe and owns equity in the company.  ... 
arXiv:2112.00584v2 fatcat:drluvvhosbeglf5pfh2vrt3ihm

Machinability [chapter]

2013 Fundamentals of Machining Processes  
Micromachining has become an important issue for machining 3D shapes and structures as well as devices with dimensions in the order of micrometers.  ...  During shaping, the cutting tool is responsible for the main cutting motion while the workpiece feeds to generate the profile of the cut surface.  ... 
doi:10.1201/b15339-22 fatcat:yayfv46cefgg5kjaoyyfeb3u4y

A Preliminary Design of a Hybrid Machine for Additive and Subtractive Manufacturing

Nanang Ali Sutisna
2020 Journal of Mechanical Engineering and Mechatronics  
This paper presents the preliminary design of hybrid AM-SM machine to process a resin based material.  ...  Despite many advantages of AM, there is a drawback of AM such as the surface quality may not be as good as subtractive machining (SM) process, therefore it will be better to have the initial shape forming  ...  The V-slot 2060 short and V-slot 2060 long is made from aluminum 6063-T5. V-slot 2080 in this design is used as the stand for the Y-axis, it is directly contacted with the V-slot wheel.  ... 
doi:10.33021/jmem.v5i1.919 fatcat:gde3fjflxzcirkxxlyk7lfgonu

Electrical Machines Winding Technology: Latest Advancements for Transportation Electrification

Ahmed Selema, Mohamed N. Ibrahim, Peter Sergeant
2022 Machines  
For this reason, the management of stresses and losses must be thoughtfully investigated to have a highly reliable electrical machine.  ...  The ever-increasing demand for higher-power dense electrical machines has resulted in different electrical, mechanical, and thermal stresses, which can eventually cause machine failure.  ...  This process differs from one machine to the other based on the type of the magnet wire and the shape of the slot.  ... 
doi:10.3390/machines10070563 fatcat:bwqajfous5ccxjskrtpjlu6gg4

Torque characteristics of high torque density partitioned PM consequent pole flux switching machines with flux barriers

Wasiq Ullah, Faisal Khan, Erwan Sulaiman, Muhammad Umair
2020 China Electrotechnical Society Transactions on Electrical Machines and Systems  
Finally, rotor mechanical stress analysis is utilized for rotor withstand capability and 3D-FEA based Coupled Electromagnetic-Thermal Analysis (CETA) for thermal behavior of the developed PPM-CPFSM.  ...  Unique double salient structure of Permanent Magnet Flux Switching Machines (PMFSM) with both Concentrated Armature Winding (CAW) and Permanent Magnet (PM) on stator attract researcher's interest for high  ...  HTB are used to set the contact faces among different machine parts and air-gap. Finally, Contact Thermal Resistance (CTR) is set between facet component of machine for convection heat transfer.  ... 
doi:10.30941/cestems.2020.00018 fatcat:zrrcujf42fgktpkv4yukkmi4re

A knowledge base model for complex forging die machining

Kwamivi Bernardin Mawussi, Laurent Tapie
2011 Computers & industrial engineering  
Geometrical features identification is based on machining knowledge formalization which is translated in the generation of maps from STL models.  ...  In this context, an original approach for generating machining process based on machining knowledge is proposed in this paper.  ...  The main objective of the approach presented is to define machining features suitable for HSM process from the die model (3D CAD model).  ... 
doi:10.1016/j.cie.2011.02.016 fatcat:vx2co4htl5aq3kl5hg4eaqoize

Vibration Simulation of Electric Machines [chapter]

Marcel Janda, Kristyna Jandova
2018 Finite Element Method - Simulation, Numerical Analysis and Solution Techniques  
In addition, the construction of electric machines is briefly summarized. It also describes the influence of individual parts of electric machines on vibration generation.  ...  The individual sections summarize the most important requirements for setting the vibration calculation and it also deals with minimizing the calculation errors.  ...  Authors gratefully acknowledge the financial support from the Ministry of Education, Youth and Sports of the Czech Republic under NPU I program (project No. LO1210).  ... 
doi:10.5772/intechopen.72266 fatcat:u6wmyy5xevfgrj4javgesely2e

Comparison of PM and Hybrid Excited Machines for Marine Vessel Hybrid-Electric Propulsion

Mehdi Hendijanizadeh, Suleiman M. Sharkh, A. Ali Qazalbash
2018 2018 XIII International Conference on Electrical Machines (ICEM)  
the machine.  ...  Magnetostatic and transient analyses are carried out for both motors. As expected the hybrid motor air gap flux controllability comes at the expense of reducing its torque density.  ...  The slotting effect of the machine is also apparent from the four figures (14 mm slot gap).  ... 
doi:10.1109/icelmach.2018.8507207 fatcat:7uony5hw3nhblb2mkyeinfupz4

Ultrasonic Machining [chapter]

Suhas S. Joshi
2016 Encyclopedia of Nanotechnology  
Therefore, ultraprecision machining refers to use of single crystal diamond (SCD) tools for ultrafine cutting  ...  It is known that the lattice distances between two atoms are of the order of 0.2-0.4 nm; therefore, the ultraprecision machining refers to processing or removal actions of a manufacturing process in the  ...  Moreover, the above sample stiffness is based on the full contact between the cantilever and the tip.  ... 
doi:10.1007/978-94-017-9780-1_366 fatcat:eqtv7d3mjjfbrpak5iul3gg7wy

High temperature machines: topologies and preliminary design

Marcin Lefik, Krzysztof Komeza, Ewa Napieralska Juszczak, Daniel Roger, Piotr Napieralski, Noureddine Takorabet, Hamed Elmadah
2019 Open Physics  
The paper presents the design of a machine that can work at high temperature. The impact of various topologies and materials on electromagnetic field distribution and losses was analyzed.  ...  The results obtained were discussed.  ...  It is advisable to avoid machines with brushes for which the winding rotor is powered by a sliding contact system.  ... 
doi:10.1515/phys-2019-0068 fatcat:263kwv5kw5fydipf3gotplszrq

Utilization of Additive Manufacturing in the Thermal Design of Electrical Machines: A Review

Martin Sarap, Ants Kallaste, Payam Shams Ghahfarokhi, Hans Tiismus, Toomas Vaimann
2022 Machines  
For electrical machines, AM allows the production of designs with optimized mechanical, electromagnetic and thermal parameters.  ...  These include novel heat sink and heat exchanger designs, solutions for cooling the machine windings directly, and additively manufactured hollow windings.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/machines10040251 fatcat:qqbuzfwrhvf2vn2dpoccdc2l2q

Analysis of the periodic breathing of a transverse annular crack propagated in a real rotating machine

S. Chatterton, P. Pennacchi, A. Vania, P. Rubio
2019 Engineering Failure Analysis  
The shape of this transverse crack was caused by the generation of multiple initiation points, equally spaced over the whole circumferential surface of the shaft cross-section located at the first high  ...  to the machine thermal state.  ...  INTRODUCTION Shaft crack propagations are one of the most serious faults in rotating machines for power generation [1] .  ... 
doi:10.1016/j.engfailanal.2019.02.029 fatcat:vymcawzg2naavdqgmqvhwizctq

Ultraprecision Machining (UPM) [chapter]

Suhas S. Joshi
2016 Encyclopedia of Nanotechnology  
Therefore, ultraprecision machining refers to use of single crystal diamond (SCD) tools for ultrafine cutting  ...  It is known that the lattice distances between two atoms are of the order of 0.2-0.4 nm; therefore, the ultraprecision machining refers to processing or removal actions of a manufacturing process in the  ...  Moreover, the above sample stiffness is based on the full contact between the cantilever and the tip.  ... 
doi:10.1007/978-94-017-9780-1_365 fatcat:wqrleu7q7nfgtapw4y7ucke6vm

Influence of Winding Topologies and Encapsulation Materials on FSPM Machine Thermal Performance

Mingda Liu, William Sixel, Bulent Sarlioglu, Gregory Nellis
2020 IET electric power applications  
The modelling of the heat transfer in the stator slot, machine air gap and water jacket channel are presented.  ...  It is shown that FSPM machines with circumferential winding and toroidal winding have different thermal limiting components and the winding encapsulation material has a different impact on the thermal  ...  Acknowledgment This study is based upon work supported by the National Science Foundation under Grant No. 1507609.  ... 
doi:10.1049/iet-epa.2019.1058 fatcat:gk3qj2wxmvd3pl5te47gjcnosa

Recent development of linear machine topologies and applications

Q. F. Lu, W. H. Mei
2018 China Electrotechnical Society Transactions on Electrical Machines and Systems  
Due to the characteristic of open structure, linear machines have more diversity than rotary machines in terms of machine topologies. Accounting for the wide applications of linear machines, e.g.  ...  Because of such merits, linear machines have been studied for a long time and rapidly developed in recent years.  ...  For example, the adoption of 9-slot primary can utilize 9s/7p, 9s/8p, 9s/10p and 9s/11p combinations. Therefore, the slot/pole combinations of PMLMs have more choices than rotary PM machines.  ... 
doi:10.23919/tems.2018.8326452 fatcat:572iutfe2fdbhl3ym2bog33gxe
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