Reliability analysis of elevator car frame using analytical and finite element methods

Onur, Yusuf Aytaç; İmrak, C. Erdem

doi:10.1177/0143624411413168

Cited by 15 publications

(8 citation statements)

References 5 publications

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“…In publications [4,14] authors describe the use of the finite element method to evaluate the stiffness and the strength of the cabin frame in different types of lifts, including the construction of a progressive gear. The finite element method in the described issues, we used to optimize the design of the support frame, for reduced beam sections of the frame structure, leading to a significant reduction in the weight of the device and determine the coefficients of safety.…”

Section: Science and Technologymentioning

confidence: 99%

Numerical and experimental analysis of the progressive gear body with the use of finite-element method

Lonkwic¹,

Różyło²,

Dębski³

2015

EiN

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Numerical aNd experimeNtal aNalysis of the progressive gear body with the use of fiNite-elemeNt method badaNia NumeryczNe i doświadczalNe koNstrukcji chwytacza progresywNego z wykorzystaNiem metody elemeNtów skończoNych* IntroductionPassenger and freight lifts are commonly used devices for vertical transport both in public buildings and residential buildings. The universality of this type of construction dictates sanctioned meet the stringent requirements of the building regulations of safety, imposing a strict manner of operation. The basic components of these devices include braking systems, to ensure proper functionality, and above all, the safety of the structure. Despite the high demands placed on these types of devices the current state of the literature on the issues of the construction and operation of the braking and progressive safety gear is not exhaustive. Issues presented in the literature relate to two main lines of research -issues and issues of dynamic load-bearing components of strength. Lifting dynamics issues dealt with, among others, Taplak [16] and Filas and Mudro [6]. In [16], the authors present the issues associated with the use of neural networks to analyze the vibration of the lift, as a result of variable mass of the traffic load. Used neural networks have been used by the authors to assess symptoms of vibration, which show that the failure of the lift or the entire device. The authors of reference [6] described the use of methods reduce the problem of the evaluation of the dynamics of the crane. In their analysis of the lift cab model reduced to a flat system with one vertical degree of freedom. The presented methodology for reducing the authors used to describe a specific mechanism cargo lift, defining the problem mathematically. In addition made an assessment of the lift operating parameters and their effect on the characteristics of the acceleration of the entire system. Issues related to the dynamics of the braking system of the lift, the analysis of the materials and construction of the progressive gears are further discussed in publications [9,10,11,12,13]. The authors of these studies focused mainly their attention on the analysis of the brake system, compare the construction and operation of the progressive gears European producers to the newly developed solution.Lonkwic P, Różyło P, Dębski H. numerical and experimental analysis of the progressive gear body with the use of finite-element method. Eksploatacja i niezawodnosc -Maintenance and Reliability 2015; 17 (4): 544-550, http://dx

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Section: Science and Technologymentioning

confidence: 99%

Numerical and experimental analysis of the progressive gear body with the use of finite-element method

Lonkwic¹,

Różyło²,

Dębski³

2015

EiN

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“…The parametric model was developed for this car jack on which kinematic analysis was performed. A lot of different research is done regarding car jacks [6], [7], [8], [9].…”

Section: Figure 1 "Scissor" Car Jackmentioning

confidence: 99%

Design and Kinematic Analysis of the Car Jack

Pervan¹,

Muminović²,

Mešić³

et al. 2020

TEM Journal

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Car jack is the basic equipment of every car. To replace the tires or to repair a specific defect on the car it is necessary to have a car jack. A modern way of creating the complex mechanical structures is described in this paper, which allows for rapid change of parameters and therefore of the whole design, i.e. the parameterized car jack model was developed. Also, the goal of this research is to carry out kinematic analysis of a car jack design. Parametric model is developed in such a way that all parameters of design are in correlations to one main parameter. The angle of thread spindle is chosen for main parameter. Usually, main parameter should be chosen as one of the parameters from power input elements. Car jack has a human hand power which is applied on car jack handle and because of that, the angle of rotation of thread spindle is the best for main parameter.

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“…The applied neural networks were used to evaluate the vibrations symptoms as a consequence of which it would be possible to identify damage of some part of the lift or the whole device. In publication [9] the authors touch the aspects connected with the mass influence of the wires supplying the lift cabin with power and the carrying ropes, in the so called tall lifts working in tall buildings over 40 floors, on its work. In this type of lifts, significant height of lifting is connected with the fact that it is needed to use a leveling belt to compensate the carrying ropes and power supply wires weight due to which the remaining subassys of the lift are not excessively loaded.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Progressive Gear Geometry on the Braking Distance Length Under Changeable Operating Conditions

Lonkwic¹,

Szydło

Molski

2016

Adv. Sci. Technol. Res. J.

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This article presents independent tests results focused on the geometry impact of progressive gear used in a short distance transportation devices on the braking distance length both under changeable operating conditions as well as changeable loading. Variable operating conditions were obtained with the use of various lubricating agents. Five types of gears such as ASG100, PP16, PR2000, KB160 and a new solution CHP2000 were used for the tests. The tests were conducted with a free fall method application. The method gave a chance to evaluate reliability of tested gears systems and to compare the existing solutions with the proposed gear of CHP2000 type.

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Reliability analysis of elevator car frame using analytical and finite element methods

Cited by 15 publications

References 5 publications

Numerical and experimental analysis of the progressive gear body with the use of finite-element method

Numerical and experimental analysis of the progressive gear body with the use of finite-element method

Design and Kinematic Analysis of the Car Jack

The Impact of Progressive Gear Geometry on the Braking Distance Length Under Changeable Operating Conditions

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