Single coil spring washers for aircraft

1957 ◽  
Keyword(s):  
Coil Spring ◽  
Single Coil

PSEUDOELASTIC BEHAVIOR OF COIL SPRING MADE OF A HIGH-DAMPING Cu-Zn-Al ALLOY

1981 ◽  
Vol 42 (C5) ◽  
pp. C5-1019-C5-1024
Author(s):  
K. Sugimoto ◽  
Y. Nakamura ◽  
L. Delaey
Keyword(s):  
Al Alloy ◽  
Coil Spring ◽  
Pseudoelastic Behavior

FAILURE ANALYSIS OF A COIL SPRING APPLIED IN THE REAR SUSPENSION OF A CITY VEHICLE

2019 ◽  
Author(s):  
Gilmar Cordeiro da Silva ◽  
Marcio Martins ◽  
Caio Silva ◽  
Felipe Bergh ◽  
Pedro Henrique Paiva ◽  
...  
Keyword(s):  
Failure Analysis ◽  
Coil Spring ◽  
Rear Suspension

Optimization of Heavy Duty Three Wheeler Front Suspension Coil Spring Using FEA

2019 ◽  
Author(s):  
Saravanan A ◽  
Suresh P ◽  
Arvidha Balaji S ◽  
Sudharsan G
Keyword(s):  
Coil Spring ◽  
Heavy Duty ◽  
Front Suspension

scholarly journals Passive knee exoskeletons in functional tasks: Biomechanical effects of a SpringExo coil-spring on squats

2021 ◽  
Vol 2 ◽  
Author(s):  
Rand Hidayah ◽  
Dongbao Sui ◽  
Kennedi A. Wade ◽  
Biing-Chwen Chang ◽  
Sunil Agrawal
Keyword(s):  
Outcome Measures ◽  
Muscle Activation ◽  
Rectus Femoris ◽  
Knee Extension ◽  
Lower Limbs ◽  
Flexion Angle ◽  
Coil Spring ◽  
Foot Pressure ◽  
Low Profile ◽  
Muscle Activations

Abstract Passive wearable exoskeletons are desirable as they can provide assistance during user movements while still maintaining a simple and low-profile design. These can be useful in industrial tasks where an ergonomic device could aid in load lifting without inconveniencing them and reducing fatigue and stress in the lower limbs. The SpringExo is a coil-spring design that aids in knee extension. In this paper, we describe the muscle activation of the knee flexors and extensors from seven healthy participants during repeated squats. The outcome measures are the timings of the key events during squat, flexion angle, muscle activation of rectus femoris and bicep femoris, and foot pressure characteristics of the participants. These outcome measures assess the possible effects of the device during lifting operations where reduced effort in the muscles is desired during ascent phase of the squat, without changing the knee and foot kinematics. The results show that the SpringExo significantly decreased rectus femoris activation during ascent (−2%) without significantly affecting either the bicep femoris or rectus femoris muscle activations in descent. This implies that the user could perform a descent without added effort and ascent with reduced effort. The exoskeleton showed other effects on the biomechanics of the user, increasing average squat time (+0.02 s) and maximum squat time (+0.1 s), and decreasing average knee flexion angle (−4°). The exoskeleton has no effect on foot loading or placement, that is, the user did not have to revise their stance while using the device.

Design of the First HTS Single-Coil Demonstrator of GaToroid Toroidal Gantry for Hadron Therapy

2021 ◽  
pp. 1-1
Author(s):  
Enrico Felcini ◽  
Jerome Harray ◽  
Tuukka Lehtinen ◽  
Diego Perini ◽  
Juan Carlos Perez ◽  
...  
Keyword(s):  
Hadron Therapy ◽  
Single Coil

Analysis of a Tubular Linear Permanent Magnet Motor for Reciprocating Compressor Applications

2013 ◽  
Vol 448-453 ◽  
pp. 2114-2119 ◽  
Author(s):  
Izzeldin Idris Abdalla ◽  
Taib Ibrahim ◽  
Nursyarizal Mohd Nor
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnets ◽  
Outer Radius ◽  
Design Parameters ◽  
Reciprocating Compressor ◽  
Permanent Magnet Motors ◽  
Permanent Magnet Motor ◽  
Element Analysis ◽  
Split Ratio ◽  
Single Coil

This paper describes a design optimization to achieve optimal performance of a two novel single-phase short-stroke tubular linear permanent magnet motors (TLPMMs) with rectangular and trapezoidal permanent magnets (PMs) structures. The motors equipped with a quasi-Halbach magnetized moving-magnet armature and slotted stator with a single-slot carrying a single coil. The motors have been developed for reciprocating compressor applications such as household refrigerators. It is observed that the TLPMM efficiency can be optimized with respect to the leading design parameters (dimensional ratios). Furthermore, the influence of mover back iron is investigated and the loss of the motor is computed. Finite element analysis (FEA) is employed for the optimization, and the optimal values of the ratio of the axial length of the radially magnetized magnets to the pole pitch as well as the ratio of the PMs outer radius-to-stator outer radius (split ratio), are identified.

Single coil pair transcutaneous energy and data transceiver for low power bio-implant use

2009 ◽  
Vol 45 (14) ◽  
pp. 727 ◽  
Author(s):  
A. Vilches ◽  
A. Sanni ◽  
C. Toumazou
Keyword(s):  
Low Power ◽  
Single Coil

Very high resolution measurement of the penetration depth of superconductors by a novel single-coil inductance technique

2000 ◽  
Vol 71 (5) ◽  
pp. 2147-2153 ◽  
Author(s):  
A. Gauzzi ◽  
J. Le Cochec ◽  
G. Lamura ◽  
B. J. Jönsson ◽  
V. A. Gasparov ◽  
...  
Keyword(s):  
High Resolution ◽  
Penetration Depth ◽  
Coil Inductance ◽  
High Resolution Measurement ◽  
Resolution Measurement ◽  
Single Coil ◽  
Very High
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