HELICAL SPRING WITH VARIABLE WIRE DIAMETER

Journal Title: ROMANIAN JOURNAL OF TECHNICAL SCIENCES - APPLIED MECHANICS - Year 2017, Vol 62, Issue 3

Abstract

The geometrical and functional particularities of helical springs with variable wire diameter are studied in this paper. The spring’s characteristic is determined by two factors. On one hand, by the minimum distance between two adjacent coils, for the unloaded spring, distance which decreases with increasing wire diameter. On the other hand, by the coils’ deflection, which decreases with increasing wire diameter. Consequently, the actual distance between the adjacent coils represents the difference between the two sizes. As a result, the adjacent coils will successively touch each other, depending on the actual distance between them, and the spring stiffness shall be increasing.

Authors and Affiliations

DUMITRU POP, SIMION HARAGÂŞ, DORIAN POPA

Keywords

Related Articles

AN ANALYTICAL MODEL FOR THE STRUCTURE OF THE DETONATION WAVES. APPLICATION FOR HYPERSONIC PROPULSION

The gas flow field within an 1D normal detonation wave at variable specific heats and viscosity with temperature is considered. Such detonation waves appear in the so called air-breathing scramjet engines used at hyperso...

INVERSE DYNAMICS OF THE CINCINNATI-MILACRON WRIST ROBOT

Recursive matrix relations in dynamics of the Cincinnati-Milacron wrist robot are established in this paper. The prototype of this mechanism is a three-degrees-of freedom spherical system with six moving links and three...

INFLUENCE OF LANTHANUM DOPING ON THE STRUCTURAL, MORPHOLOGICAL AND THERMAL CHARACTERISTICS OF NICKEL FERRITE

Lanthanum doped nickel ferrite – NiFe1-δLaδO4 has been synthesised by solid state reaction using nickel and iron oxides (NiO and Fe2O3) and lanthanum hydroxide (La(OH)3). The samples have been investigated by X-ray diffr...

ON A SHAPE IDENTIFICATION PROBLEM

An inverse method using a genetic algorithm and a quasi-Newton method is presented in this paper. We consider the problem of identifying a finite elastic airfilled hollow body of unknown shape embedded in a compressible,...

RISK-TARGETED MAPS FOR SEISMIC DESIGN. A BRIEF REVIEW OF THE STATE-OF-THE-ART

The uniform hazard approach is currently used for almost all seismic design maps enforced worldwide. That being the case, the seismic risk of buildings designed according to uniform hazard values of ground motions parame...

Download PDF file
  • EP ID EP304075
  • DOI -
  • Views 68
  • Downloads 0

How To Cite

DUMITRU POP, SIMION HARAGÂŞ, DORIAN POPA (2017). HELICAL SPRING WITH VARIABLE WIRE DIAMETER. ROMANIAN JOURNAL OF TECHNICAL SCIENCES - APPLIED MECHANICS, 62(3), 193-205. https://europub.co.uk/articles/-A-304075