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Open AccessArticle

Measurement and Analysis of Vibration Levels in Stacked Small Package Shipments in Delivery Vans as a Function of Free Movement Space

Department of Logistics and Forwarding, Széchenyi István University, Egyetem tér 1, 9026 Győr, Hungary
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Appl. Sci. 2020, 10(21), 7821; https://doi.org/10.3390/app10217821
Received: 28 September 2020 / Revised: 29 October 2020 / Accepted: 2 November 2020 / Published: 4 November 2020
(This article belongs to the Special Issue Advanced Digital Technology in Logistics Engineering)
In recent years there has been a very significant increase in parcel delivery shipments all over the world. Moreover, this mode of delivery, in some cases, is facing a very intensive flow of goods, such as in annual festive seasons or, for instance, in situations like COVID-19 when personal purchase of goods is strictly limited in malls. This often means that delivery vehicles operate at almost full capacity, and many same or different kinds of packages are therefore stacked in small delivery vehicles. In this study, we measured and analyzed the vibration levels that occur in smaller stacks of packages in parcel delivery shipments, paying particular attention to those circumstances such as stacking layers and free movement spaces that can affect the vibration in different layers of packages. The goal of this paper was to provide information about the vibration levels that occur in smaller stacks of packages that are not unitized and fixed, as is common in parcel transportation. The recorded vibration events were analyzed in terms of power spectral densities (PSDs) and supplied with statistical data of acceleration events to provide an understanding of the variability of intensity. Based on the results of this study, PSD spectra were developed for various free movement conditions, as well as spectra for each layer in the stacked parcel package shipment. The results showed that the vibration level increases in the stacked load upwards and with an increase of free space of possible movement. The results of this study can be used to simulate the measured vibration conditions in laboratory tests conducted on courier express parcel shipments. View Full-Text
Keywords: vibration; power spectral density (PSD); parcel delivery; stacked packages vibration; power spectral density (PSD); parcel delivery; stacked packages
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MDPI and ACS Style

Böröcz, P.; Molnár, B. Measurement and Analysis of Vibration Levels in Stacked Small Package Shipments in Delivery Vans as a Function of Free Movement Space. Appl. Sci. 2020, 10, 7821. https://doi.org/10.3390/app10217821

AMA Style

Böröcz P, Molnár B. Measurement and Analysis of Vibration Levels in Stacked Small Package Shipments in Delivery Vans as a Function of Free Movement Space. Applied Sciences. 2020; 10(21):7821. https://doi.org/10.3390/app10217821

Chicago/Turabian Style

Böröcz, Péter; Molnár, Bence. 2020. "Measurement and Analysis of Vibration Levels in Stacked Small Package Shipments in Delivery Vans as a Function of Free Movement Space" Appl. Sci. 10, no. 21: 7821. https://doi.org/10.3390/app10217821

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