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Abstract

The objective of the study was to assess the potential use of optical measuring instruments to determine the minimum chip thickness in face milling. Images of scanned surfaces were analyzed using mother wavelets. Filtration of optical signals helped identify the characteristic zones observed on the workpiece surface at the beginning of the cutting process. The measurement data were analyzed statistically. The results were then used to estimate how accurate each measuring system was to determine the minimum uncut chip thickness. Also, experimental verification was carried out for each mother wavelet to assess their suitability for analyzing surface images.

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Authors and Affiliations

Damian Gogolewski
Włodzimierz Makieła
Łukasz Nowakowski
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Abstract

The aim of the study described herein was to design, construct and test a demonstrator of a system to control the direction of the resultant thrust vector of a rocket motor to be used in short range anti-tank missiles with a mass of up to 15 kg. The novelty of the system is that the direction of the resultant thrust vector is manipulated by means of moveable jet vanes integrated with a moveable nozzle diffuser through telescopic connectors. The technology demonstrator was built using different materials and different manufacturing processes. The first versions were 3D printed from plastic materials. Minor modifications to the design were made at an early stage. The final version had the main components made of aluminum using CNC machining. The system, with and without jet vanes, was tested on a specially developed test rig equipped with a multi-axis sensor to measure forces and torques. The nozzle performance parameters measured and analyzed in this study were the components of the thrust vector, the moments and the effective vectoring angle. The findings show that the experimental data are in good agreement with the results of earlier simulations and that the demonstrator is fully operational.
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Authors and Affiliations

Łukasz Krzysztof Nocoń
1
ORCID: ORCID
Marta Grzyb
1
Piotr Szmidt
1
Łukasz Marian Nowakowski
2

  1. Kielce University of Technology, Department of Mechatronics and Armament Engineering, Faculty of Mechatronics and Mechanical Engineering,al. Tysia˛clecia Pan´stwa Polskiego 7, 25-314 Kielce, Poland
  2. Kielce University of Technology, Department of Mechanical Engineering and Metrology, Faculty of Mechatronics and Mechanical Engineering,al. Tysia˛clecia Pan´stwa Polskiego 7, 25-314 Kielce, Poland

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