Vibration‐Based Damage Identification and Condition Monitoring of Metro Trains: Warsaw Metro Case Study

Kowalska-Koczwara, Alicja; Pachla, Filip; Stecz, Piotr; Stypuła, Krzysztof; Tatara, Tadeusz; Lejk, Jerzy; Sokołowski, Marek

doi:10.1155/2018/8475684

Cited by 20 publications

(12 citation statements)

References 16 publications

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“…It is best to combine numerical and experimental procedures together and to verify numerical results. The use of such procedures may have different applications in practice [6][7][8].…”

Section: Discussionmentioning

confidence: 99%

Some possibilities of modeling of moving load on concrete pavements

Valsšková¹,

Melcer²

2018

J. meas. eng.

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The submitted paper is devoted to the numerical modeling of the dynamic effects of moving vehicles on concrete pavements. The finite element method, namely the ADINA program, is used to model the problem. To solve the task, it is necessary to create a vehicle and a road computational models. The vehicle model is spacious and corresponds to a heavy truck of the Tatra type. The so-called single-layer road model on an elastic Winkler foundation is used. Concrete pavements are modeled using shell or solid elements. The output of the solution is the time course of the dynamic deflections at the individual points of the slab and internal forces and the stress states in the concrete slab at the individual time points of the solution. The calculation results for each computational model are compared to each other.

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“…It is best to combine numerical and experimental procedures together and to verify numerical results. The use of such procedures may have different applications in practice [6][7][8].…”

Section: Discussionmentioning

confidence: 99%

Some possibilities of modeling of moving load on concrete pavements

Valsšková¹,

Melcer²

2018

J. meas. eng.

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“…In this paper, due to the proposed modifications of the utility function, new values of HVPR are proposed (see Table 8). The proposed values of HVPR result from the experience of the authors gained from many years of monitoring the Warsaw Metro [48]. Measurements of the Warsaw Metro were the basis for changes in the HVPR (the human vibration perceptivity ratio) described in [47] never reaches a value of 1, which means that vibrations are not perceptible according to [31].…”

Section: Results Of Human Perception Of Vibrationsmentioning

confidence: 99%

“…The proposed values of HVPR result from the experience of the authors gained from many years of monitoring the Warsaw Metro [48]. Measurements of the Warsaw Metro were the basis for changes in the requirements concerning human vibrational comfort in buildings in the vicinity of the Metro [48]. Requirements included in the Japan standard [49,50] and described in [51] were also analysed before the proposal of HPVR values.…”

Section: Results Of Human Perception Of Vibrationsmentioning

confidence: 99%

Evaluation of the Criteria for Selecting Proposed Variants of Utility Functions in the Adaptation of Historic Regional Architecture

et al. 2019

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In this article, the authors propose ways to evaluate the criteria for the considered variants of utility functions in the adaptation of historic regional architecture. The proposed set of assessment criteria (thermo-modernisation criteria, comfort of use, financial considerations, criteria of social benefits, and protection of cultural heritage) emphasises the multidimensional character of the problem of choosing a new function for a historic building. Some of the criteria are measurable while others are difficult to measure, which requires an expert approach to their assessment. The evaluation of the criteria was performed on the example of the historic building ‘Stara Polana’ located in Zakopane. The benchmark for the analysis was the existing condition of the ‘Stara Polana’ building, which is used as a hostel. The authors conducted a series of interdisciplinary studies specifying the potential of the new utility functions considered for the object in the context of the proposed criteria. The evaluation of individual criteria developed in this article is based on the multi-criteria analysis to be performed in the future and support the selection of a new function for the building in question.

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“…In such cases the numerical studies are made often [1,6]. The problem of the vibration propagation through the ground can be found in literature [2,4,7] as well as the impact on the buildings [8]. The paper presents the results of transmission of vibrations from the ground to the building.…”

Section: Introductionmentioning

confidence: 99%

Transmission of transport vibrations from the ground to the building - case study

Kowalska-Koczwara

Pachla

2020

MATEC Web Conf.

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Transport vibrations are transmitted from the ground the foundations and building walls to the building and received by its construction and by people in the buildings. During the vibration of buildings, inertia forces generate an additional (apart from the static one) loading of the structure. In the diagnosis and design of buildings, these forces are taken into account by analyzing the requirements for stiffness and strength of the building structure. Exceedance of these requirements may lead to accelerated wear and even structural damages of the building. In this paper a simple relationship between ground and building vibration was made. The building chosen for analysis is light-weight wooden building located close to Cracow near Zakopianka road. What is worth noting that building is so called passive building. The excitation which was simulated on the dynamical polygon was car (bus) and truck lorry passages. The sensors were accelerations in three orthogonal directions, one sensor was placed about 2.5 m far from the building and the second on the foundation wall. The different types of excitation were compared and the conclusion from the analysis was made.

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Vibration‐Based Damage Identification and Condition Monitoring of Metro Trains: Warsaw Metro Case Study

Cited by 20 publications

References 16 publications

Some possibilities of modeling of moving load on concrete pavements

Some possibilities of modeling of moving load on concrete pavements

Evaluation of the Criteria for Selecting Proposed Variants of Utility Functions in the Adaptation of Historic Regional Architecture

Transmission of transport vibrations from the ground to the building - case study

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