Torque Curves
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. EFFECTS OF PILOT HOLE DIAMETER ON SCREW-DRIVING TORQUES IN MEDIUM DENSITY FIBERBOARD
ABSTRACT This study investigated the effects of pilot-hole diameter in medium density fiberboard (MDF) on the characterization of screw-driving torques. The factors investigated were the embedded screw orientation and pilot hole diameter. Based on the curves obtained from screw-driving process, the measurements of the seating torque (SET) and stripping torqu
CERNE. Publicado em: 20/05/2019
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2. Caracterização de ligas magnéticas sinterizadas para aplicação em núcleos de máquinas elétricas rotativas
The purpose of this work is to study the properties of ferromagnetic alloys obtained by Powder Metallurgy to construct cores of Rotary Electric Machines, usually mounted on rolled steel sheets. To perform these activities, iron power and their alloys obtained by a mixture with different percentages of phosphorus (1, 2 and 3%), silicon (1, 3 and 5%) and nicke
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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3. Estudo experimental de bombas de BCS operando com escoamento bifásico gás-líquido / Experimental investigation of two-phase gas-liquid flow performance of electrical submersible pump
The use of electrical submersible pumps (ESP) under gas-liquid flow is very common in the oil industry. At constant liquid flow rate a dramatic degradation on pump head is observed as gas flow rate increases. Natural instabilities of two-phase flow may cause the centrifugal pump to surge at rather low gas void fraction (GVF), as evidenced by a critical point
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/12/2011
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4. Levantamento de Curvas de EficiÃncia de Aerogeradores de 3m de DiÃmetro Utilizando Modelos de TurbulÃncia Rans de Uma e Duas EquaÃÃes com ComparaÃÃo Experimental / SURVEY OF EFFICIENCY CURVES OF A 3M DIAMETER WIND TURBINE USING ONE AND TWO EQUATIONS RANS TURBULENCE MODELS WITH EXPERIMENTAL COMPARISON
Realizou-se o levantamento de curvas de eficiÃncia utilizando odelos numÃricos RANS de uma e duas equaÃÃes para um erogerador com 3m de diÃmetro, utilizando pÃs projetadas para operar em diferentes condiÃÃes de λ com perfis NACA 0012, 4412 e 6412. A parametrizaÃÃo da geometria da malha para a dimensÃo do rotor, juntamente com a parametrizaÃ�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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5. Fases magnéticas de sistemas nanoestruturados de terras-raras
There is presently a worldwide interest in artificial magnetic systems which guide research activities in universities and companies. Thin films and multilayers have a central role, revealing new magnetic phases which often lead to breakthroughs and new technology standards, never thought otherwise. Surface and confinement effects cause large impact in the m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/02/2011
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6. Development of Resistance Generation System for Workout and Physical Therapy Devices / Desenvolvimento de um sistema de geração de resistência para aparelhos de musculação e fisioterapia
O objetivo deste trabalho é o projeto de um sistema alternativo de geração de resistência à contração do músculo esquelético para ser aplicado em máquinas de musculação e fisioterapia. A modelagem do dispositivo proposto utiliza um conjunto mola/seguidor/came para produzir a resistência, dispensando o uso de pesos, cabos, correias ou correntes.
Publicado em: 2007
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7. Construção e testes de máquina de ensaio de torção plástica para levantamento do comportamento plástico de metais
A computerized prototype machine for cold torsion testing has been developed, constructed and tested in the Laboratory of Metal Forming at UDESC (University the State the Santa Catarina) - Joinville. The equipment consists of a horizontal torsion machine, employing an electric motor, a wheel, a horizontal axle and a control and acquisition data system. The g
Publicado em: 2004
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8. Simulação computacional de eventos termo-hidraulicos transitorios em multicircuitos com multibombas
PANTERA-2 (from Programa para Análise Termo-hidráulica de Reatores a ÁguaProgram for Thermal-hydraulic Analysis of Water Reactors, Version 2), whose fundamentals are described in this work, is intended to carry out rod bundle subchannel analysis in conjunction with multiloop simulation. It solves simultaneously the conservation equations of mass, axial an
Publicado em: 2003
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9. Analysis of Regular and Irregular Dynamics of a Non Ideal Gear Rattling Problem
This paper presents a study on the dynamics of the rattling problem in gearboxes under non-ideal excitation. The subject has being analyzed by a number of authors such as Karagiannis and Pfeiffer (1991), for the ideal excitation case. An interesting model of the same problem by Moon (1992) has been recently used by Souza and Caldas (1999) to detect chaotic b
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2002-05
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10. Estudo de uma metodologia para monitorar o processo de hidrogenação pela medida da viscosidade
In this experimental work the rheological behavior of multiphasical mixtures of soybean oil and hydrogenated fat, silicate was used as catalyser and air was determined in similar situations of process of a batch hydrogenation, utilizing a rotational rheometer style Searle, in 50°C. Three shakers style turbine ofRushton with 4 straight shovel were built in o
Publicado em: 2001
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11. Modelagem dinamica do eixo de acionamento da bomba injetora diistribuidora BOSCH tipo VE : teoria e experimento
The establishment of the driving torque characteristic curves and the computation of the maximum strains exerted over the journal bearings are fundamental stages to a fuel injection pump design and also to any application study of it in Diesel combustion engines. The objective of this work is the feasibility study of a fuel injection pump driving shaft mathe
Publicado em: 1996
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12. Efeito da concentração de acido, umidade e temperatura na hidrolise de amido de mandioca por extrusão termoplastica visando a produção de alcool
It is well know that the production of alcohol from cassava starch his not economically feasible without a subsidy. This is due to the fact that the process is highly energy consuming because of the wet gelatinization of the starch and the enzime consumption required for liquefaction and saccharification. Thermoplastic extrusion technology, however, permits
Publicado em: 1989