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Relevant bibliographies by topics / Maximum height of surface roughness

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Academic literature on the topic 'Maximum height of surface roughness'

Author: Grafiati

Published: 4 June 2025

Last updated: 15 July 2025

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Journal articles on the topic "Maximum height of surface roughness"

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Sztankovics, István. "ARITHMETIC MEAN HEIGHT AND MAXIMUM HEIGHT OF THE ROUGHNESS PROFILE IN HONING WITH DIFFERENT FEEDS." Cutting & Tools in Technological System, no. 99 (November 21, 2023): 94–100. http://dx.doi.org/10.20998/2078-7405.2023.99.03.

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The achievable surface quality is an important factor even in roughing procedures; however, it is most relevant in finishing. Two commonly measured and analysed characteristics of the machined surface roughness profile are the Arithmetic Mean Height and the Maximum Height of the Roughness Profile. In this paper these parameters were studied in bore honing. Cutting experiments were carried out, where the feed rate and the applied honing tool are varied. After the evaluation of the measured 2D surface profiles, the following conclusions were drawn: the effect of the feed rate is not linear; the

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Duo, Yang, Wang Qibo, Tang Jinyuan, Xia Fujia, Zhou Wei, and Wen Yuqin. "Correlation analysis of roughness surface height distribution parameters and maximum mises stress." Surface Topography: Metrology and Properties 10, no. 1 (2022): 015046. http://dx.doi.org/10.1088/2051-672x/ac5d6b.

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Abstract Roughness surfaces contact analysis is cutting-edge research in interface design. The 3D rough surface amplitude distribution characterized by height distribution parameters( Sq (root mean square), Ssk (skewness), Sku (kurtosis)) has a great influence on the extreme value and distribution of the interface contact stress. However, the relationship between height distribution parameters and surface maximum mises stress ( σ max ) is still unclear and lacks of in-depth study. Through BP(Back Propagation) neural network, global sensitivity qualitative (Morris) and quantitative (Sobol) anal

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Chang, Wen-Ruey, Mikko Hirvonen, Raoul Grönqvist, and William M. Aguilera. "The Effects of Cut-Off Length on Surface Roughness Parameters and Their Correlation with Transition Friction." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 46, no. 19 (2002): 1713–17. http://dx.doi.org/10.1177/154193120204601905.

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Friction is widely used as an indicator of surface slipperiness in preventing accidents in slips and falls. Surface roughness affects friction, but it is not clear which surface roughness characteristics are better correlated with friction and, therefore, are preferred as potential interventions. The transition friction between quarry tiles and Neolite under three different mixtures of glycerol and water as contaminants was correlated with the surface parameters generated from the quarry tile surfaces. The surface roughness parameters were measured with three different cut-off lengths (0.8, 2.

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Zagórski, Ireneusz. "Surface Roughness Evaluation of AZ31B Magnesium Alloy After Rough Milling Using Tools with Different Geometries." Strojniški vestnik - Journal of Mechanical Engineering 70, no. 7-8 (2024): 355–68. http://dx.doi.org/10.5545/sv-jme.2023.885.

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This paper presents the experimental results of a study investigating the impact of machining parameters on 3D surface roughness after rough, dry milling. The following 3D roughness parameters were analysed: Sa (arithmetic mean height), Sq (root mean square height), Sz (maximum height), Sku (kurtosis), Ssk (skewness), Sp (maximum peak height), and Sv (maximum pit height). Roughness measurements were made on the end face of the specimens. Additionally, 3D surface topography maps and Abbot-Firestone material ratio curves were generated. Carbide end mills with variable rake and helix angles were

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Maurer, K. D., G. Bohrer, W. T. Kenny, and V. Y. Ivanov. "Large-eddy simulations of surface roughness parameter sensitivity to canopy-structure characteristics." Biogeosciences 12, no. 8 (2015): 2533–48. http://dx.doi.org/10.5194/bg-12-2533-2015.

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Abstract. Surface roughness parameters, namely the roughness length and displacement height, are an integral input used to model surface fluxes. However, most models assume these parameters to be a fixed property of plant functional type and disregard the governing structural heterogeneity and dynamics. In this study, we use large-eddy simulations to explore, in silico, the effects of canopy-structure characteristics on surface roughness parameters. We performed a virtual experiment to test the sensitivity of resolved surface roughness to four axes of canopy structure: (1) leaf area index, (2)

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Zafar, Muhammad Sohail. "Comparing the effects of manual and ultrasonic instrumentation on root surface mechanical properties." European Journal of Dentistry 10, no. 04 (2016): 517–21. http://dx.doi.org/10.4103/1305-7456.195162.

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ABSTRACT Objective: The aim of the current study is to analyze the surface profiles of healthy and periodontal-treated roots. In addition, manual and ultrasonic instrumentation methods have been compared in terms of surface mechanical properties of root surfaces including surface roughness, hardness, and elastic modulus. Materials and Methods: This study was conducted using extracted teeth that were randomly divided into two study groups (1 and 2). Root planing was performed using either Gracey curettes (Group 1) or ultrasonic scaler (Group 2). The noncontact profilometer was used to analyze s

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Chen, Xiao Xiao, Jun Zhao, Yong Wang Dong, Shuai Liu, and Jia Bang Zhao. "Study on the Machined Surface Geometry Generated by Multi-Axis Ball End Milling Process." Materials Science Forum 770 (October 2013): 370–75. http://dx.doi.org/10.4028/www.scientific.net/msf.770.370.

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This paper investigated the surface generated by single factor experiment under multi-axis finish milling condition, and the effects of cutting parameters on surface textures, 2D and 3D surface topographies and surface roughness characteristics were analyzed. Surface features evaluation indicators of Ra, Rq, Rt, surface heights histogram, maximum valley depth and maximum peak height corresponding to various cutting parameters were presented and discussed. The machining marks are closely related with tool orientation angles. The orderly distributions of concave and convex patterns on the machin

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Maurer, K. D., G. Bohrer, and V. Y. Ivanov. "Large eddy simulations of surface roughness parameter sensitivity to canopy-structure characteristics." Biogeosciences Discussions 11, no. 11 (2014): 16349–89. http://dx.doi.org/10.5194/bgd-11-16349-2014.

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Abstract. Surface roughness parameters are at the core of every model representation of the coupling and interactions between land-surface and atmosphere, and are used in every model of surface fluxes. However, most models assume these parameters to be a fixed property of plant functional type and do not vary them in response to spatial or temporal changes to canopy structure. In part, this is due to the difficulty of reducing the complexity of canopy structure and its spatiotemporal dynamic and heterogeneity to less than a handful of parameters describing its effects of atmosphere–surface int

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Deng, Gang, Syohei Suzuki, and Tsutomu Nakanishi. "Effects of Surface Roughness and Abnormal Surface Layer on Fatigue Strength." Applied Mechanics and Materials 86 (August 2011): 867–70. http://dx.doi.org/10.4028/www.scientific.net/amm.86.867.

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The purpose of this research is to evaluate the effects of surface roughness in normalized steel and the effects of abnormal surface layer in carburized steel on the fatigue strength that is considered as the limit of no crack initiation. Normalized and Carburized test pieces with crowned round notches were used in the fatigue tests, the normalized test pieces have different surface roughnesses and the carburized test pieces have different surface microstructures on the notch surface. The changes in fatigue strength due to the differences in the notch surface roughness and surface microstructu

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Deleanu, Lorena, Laura Maftei, George Ghiocel Ojoc, Alina Ceoromila, Larisa Chiper Titire, and Constantin Georgescu. "Influence of Sliding Speed and Glass Bead Concentration on 3D Roughness Parameters." Materiale Plastice 60, no. 4 (2024): 109–24. http://dx.doi.org/10.37358/mp.23.4.5691.

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This paper presents an analysis of 3D amplitude and functional parameters for worn surfaces of composites with polyamide 6 as matrix and different glass bead concentrations (0%, 2.5%, 5%, 10%, 20%, 30% and 50%wt). The worn surfaces after dry sliding of a steel pin on a disk, for 10 km, at constant velocity (0.5 m/s, 1 m/s and 1.5 m/s) and under an average pressure of 1 MPa. There were done two tests under the same conditions. On each worn track, there were investigated three surfaces of 500 μm x 500 μm with a contact profilometer. The number of points on the scan line was 200 points and the st

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Dissertations / Theses on the topic "Maximum height of surface roughness"

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Le, Charles Tuan-Cong. "Angular memory effect and its interferometric applications in rough surface mean height profiling /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/6005.

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Brodin, Jennie, and Yunus Konbul. "Determining bumpiness and inclination of surfaces with geodetic methods." Thesis, University of Gävle, University of Gävle, Department of Technology and Built Environment, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-4648.

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<p><em>Determining bumpiness and inclination of surfaces is very important in many different areas, such as airports and at constructions sites. In this study, a surveying trolley and a remote controlled (RC) car were used to determine the bumpiness of two different surfaces. The aim with this study was to test the accuracy of a surveying trolley and an RC car to see how the accuracy can be increased with different observation methods. Total station, GPS and laser scanner surveying equipments were used, and all observations obtained by them were analysed. The laser scanner data was found to ha

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OHKA, Masahiro, Takuya KAWAMURA, Tatsuya ITAHASHI, Jyun-ichi TAKAYANAGI, Tetsu MIYAOKA, and Yasunaga MITSUYA. "A Tactile Recognition System Mimicking Human Mechanism for Recognizing Surface Roughness." The Japan Society of Mechanical Engineers, 2005. http://hdl.handle.net/2237/9063.

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Hu, Chen. "Surface Optimization of the Silicon Templates for Monolithic Photonics Integration." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37226.

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Silicon photonics is emerging as a potential field to achieve optical interconnects towards the realization of ultra high bandwidth. The indirect band-gap property of silicon still remains as a big challenge to incorporate silicon photonic active device, for example, silicon-based laser. In the Laboratory of Semiconductor Materials at KTH, a monolithic integration platform based on nano-epitaxial lateral overgrowth (nano-ELOG) technique has been proposed to integrate III-V semiconductor materials with silicon for light source application. The integration process involves uneven surface morphol

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Škeřík, Filip. "Hodnocení vlivu technologií obrábění na analýzu textury povrchu technických plastů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443214.

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The diploma thesis deals with the influence of machining technologies (turning, milling, grinding and polishing) on the surface texture of functional surfaces of selected materials from technical plastics. In the first part of the thesis there is a theoretical analysis of the possibilities of machining plastic materials. Furthermore, an analysis of the most commonly used parameters for evaluating the roughness of the machined surface and their effect on functionality is performed. The experimental part of the thesis describes samples preparation, analysis of measured data and subsequent evalua

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Roušar, Ladislav. "Meze pohybu a kvantifikace množství dnových splavenin pro štěrkonosné toky." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-234551.

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Doctoral thesis in detail and comprehensively deals with mechanic of incipient bedload motion for gravel-bed rivers. This study based on theoretical knowledge, experimental researches, numerical models and field survey extends present knowledge concerning with incipient bedload motion and sediment transport at small relative height and hydraulically rough surface bed for turbulent unaerated free surface flow. Incipient bedload motion and sediment transport have been determined for homogeneous and inhomogeneous bed materials. For homogeneous bed material the velocity profiles have been describe

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"Height inspection of wafer bumps without explicit 3D reconstruction." 2007. http://library.cuhk.edu.hk/record=b5893093.

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by Dong, Mei.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2007.<br>Includes bibliographical references (leaves 83-90).<br>Abstracts in English and Chinese.<br>INTRODUCTION --- p.1<br>Chapter 1.1 --- Bump Height Inspection --- p.1<br>Chapter 1.2 --- Our Height Inspection System --- p.2<br>Chapter 1.3 --- Thesis Outline --- p.3<br>BACKGROUND --- p.5<br>Chapter 2.1 --- Wafer Bumps --- p.5<br>Chapter 2.2 --- Common Defects of Wafer Bumps --- p.7<br>Chapter 2.3 --- Traditional Methods for Bump Inspection --- p.11<br>BIPLANAR DISPARITY METHOD --- p.22<br>Chapter 3.1 --- Problem Na

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Kuan, Chin-Shui, and 關錦穗. "The study of the maximum metal removal rate of the machine tool based on the surface roughness of the workpiece." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/94974717135507789679.

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Косів, Ярослав Миколайович, та Ya M. Kosiv. "Обґрунтування конструкторсько-технологічних параметрів трирізцевих комбінованих розточувальних головок підвищеної продуктивності". Master's thesis, 2020. http://elartu.tntu.edu.ua/handle/lib/32098.

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Проаналізовано відомі конструкції, а також рекомендації та залежності щодо обґрунтування параметрів розточувальних інструментів. Запропоновано комплексний підхід і нову методику визначення технологічних і конструкторських параметрів трирізцевих розточувальних головок, що працюють з одночасним поділом припуску та подачі. Подано два варіанти конструкторського виконання трирізцевих головок, які забезпечують одночасний поділ припуску та подачі. Виведено формули для розрахунку значень подач на окремий чистовий різець і на оберт трирізцевої розточувальної головки, а також глибин різання на чистових

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Books on the topic "Maximum height of surface roughness"

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Paeglīte, Ilze. Kustīgās slodzes dinamiskās iedarbes uz autoceļu tiltiem eksperimentāla izpēte un novērtējums. RTU Press, 2021. http://dx.doi.org/10.7250/9789934227028.

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Using data obtained from the dynamic load testing of bridges a method was developed to evaluate level of the dynamic performance without performing a dynamic load test. In this method a dynamic index of the bridge is calculated. Dynamic index allows to evaluate the dynamic performance level of existing and new structures taking into account such bridge parameters as span length / height ratio, natural frequency, vibration damping coefficient, relative deflection and international roughness index IRI. Dynamic index method can be used by bridge owners and maintainers to determine the dynamic pot

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Gould, JS, WL McCaw, NP Cheney, PF Ellis, and S. Matthews. Field Guide: Fire in Dry Eucalypt Forest. CSIRO Publishing, 2008. http://dx.doi.org/10.1071/9780643101289.

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An effective response to bushfires relies on accurate predictions of fire behaviour, particularly the rate of spread, intensity and ‘spotting’. This field guide has been developed to provide a systematic method for assessing fuel hazard and predicting potential fire behaviour in dry eucalypt forest. It will assist in making vital decisions that ensure the protection of fire crews and the community. This guide integrates Project Vesta research findings with the Victorian Overall Fuel Hazard Guide and is applicable to dry eucalypt forests throughout southern Australia. Fuel assessment is b

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Zydroń, Tymoteusz. Wpływ systemów korzeniowych wybranych gatunków drzew na przyrost wytrzymałości gruntu na ścinanie. Publishing House of the University of Agriculture in Krakow, 2019. http://dx.doi.org/10.15576/978-83-66602-46-5.

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The aim of the paper was to determine the influence of root systems of chosen tree species found in the Polish Flysch Carpathians on the increase of soil shear strength (root cohesion) in terms of slope stability. The paper's goal was achieved through comprehensive tests on root systems of eight relatively common in the Polish Flysch Carpathians tree species. The tests that were carried out included field work, laboratory work and analytical calculations. As part of the field work, the root area ratio (A IA) of the roots was determined using the method of profiling the walls of the trench at a

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Book chapters on the topic "Maximum height of surface roughness"

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Louisa Krüger, Mirja, and Kirsten Tracht. "Analysis of Surface Properties for Process-Reliable Handling with Dry-Adhesive Microstructures." In Annals of Scientific Society for Assembly, Handling and Industrial Robotics 2023. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-74010-7_12.

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Abstract The aim of this paper is to investigate the influence of different surface parameters on the adhesion behavior of dry-adhesive microstructures. Selective laser melting surfaces, which are partly reworked in a solid rolling process, are used to investigate the influence of different surface parameters. The surface parameters are determined using a laser scanning microscope. Experiments with three different test masses and dry-adhesive microstructures are carried out on the surfaces to determine the pull-off stress. The experiments show that the surface parameter root-means-square roughness has an influence on the adhesion behavior of the dry-adhesive microstructures. It becomes clear that the size relationship between the root-means-square roughness and the tip diameter of the dry-adhesive microstructures has a crucial role in the adhesion behavior. Moreover, increasing the pull-off stress reduces the number of surfaces where adhesion takes place. Furthermore, it can be seen that when the average element length of the ripple is reduced and the total height of the ripple, the arithmetic average roughness and the mean roughness depth are increased, the adhesion behavior is reduced. In addition, increasing the pull-off stress leads to a reduction in the number of surfaces to which adhesion occurs. The reduction in adhesion behavior can be explained by the impediment of contact formation between the mushroom heads of the dry-adhesive microstructures and the surface.

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Ju, Liehong, Jingxin Huang, and Junning Pan. "Field Observation and Experimental Study on the Interaction Between Ship Waves And Vertical Wave Dissipation Revetment." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6138-0_9.

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AbstractWith China’s economic development, many inland waterways adopt vertical revetment structure to save land resources, but this structure is not conducive to wave attenuation. According to the measurement results of the ship wave data of typical ship types in Sunan Canal sailing at different speeds collected in field observation, the maximum wave height in front of the vertical revetment wall was less than 1.0 m under normal navigation conditions, while the navigation administration boats can form a wave height of nearly 1.8 m in front of the vertical revetment wall at the maximum speed. In channels with heavy freight and fast ship speed, the ship waves formed by ships, superposed with the reflected waves by vertical impervious revetment, would result in severe water surface fluctuation, affecting the safety of ship navigation and the stability of revetment structure. Based on the regulation project of Sunan Canal, this paper put forward two types of vertical wave dissipation revetment, namely round-hole caisson structure and grid-type structure. And their wave dissipation effects are compared and optimized through 2-D wave test. Finally, the 3-D physical model tests of ship wave and revetment were carried out, and the effects of reducing ship wave height of round-hole caisson structure and grid structure are compared. The results show that these two vertical wave dissipation structures can reduce the maximum ship wave height in front of the revetment wall by about 20–25%. The relevant research results of this paper can serve as a reference for similar projects.

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Novikov, Fedir, Dmytro Novikov, Oleksii Yermolenko, Valeriy Zhovtobryukh, and Svitlana Shevchenko. "Analytical Determination of Height Parameters of Surface Roughness During Abrasive Processing and Conditions for Their Reduction." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-82746-4_29.

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Kitay, Ozhan, Emre Tascioglu, and Yusuf Kaynak. "Effect of Sustainable Hybrid Coolant Strategy on Machinability and Energy Consumption of NiTiHf High Temperature Shape Memory Alloy." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-93891-7_46.

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Abstract Features of NiTiHf high temperature shape memory (SMA) alloy such as low thermal conductivity, high work-hardening tendency and superelasticity make machining operations difficult and cause high tool wear and high cutting forces. As industries move towards sustainability, it is vital to ensure the machining performance standards and energy efficiency of difficult-to-cut materials. Therefore, this study focuses on the energy consumption and in-depth analysis of machinability of NiTiHf alloy. The effects of minimum quantity lubrication (MQL) cooling and combination of both MQL + CO2 cooling on machinability measures such as tool wear, cutting forces and surface quality were evaluated for various cutting speeds. Experimental findings show that MQL + CO2 cooling reduces the cutting temperature by 30% more than MQL. MQL + CO2 was found to be the finest effective cooling technique, reducing tool wear, and specific cutting energy (SCE) and creating the best possible surface. While the surface roughness (Ra) value in MQL is half of the dry cutting condition, the roughness in MQL + CO2 is 69% less than the dry cutting condition. Even at the highest cutting speed, the effect of the MQL + CO2 cooling regime is at maximum level and the tool flank wear is 20% less than MQL.

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Mansor, A. F., A. I. Azmi, M. Z. M. Zain, and R. Jamaluddin. "The Effect of Parameters of Electrical Discharge Coatings on the Tool Electrode Erosion and Maximum Height Roughness on NiTi Alloy." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0866-7_28.

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Nguyen, Anh Tuan, Thi Thanh Nga Nguyen, Quoc Hoang Tran, et al. "Multi-objective Optimization for Minimum Surface Roughness and Maximum Wheel Life When External Cylindrical Grinding SKD11 Steel." In Advances in Engineering Research and Application. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92574-1_63.

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Pahuja, Vipin, Suman Kant, Chandrashekhar S. Jawalkar, and Rajeev Verma. "Influence of Process Parameters on Surface Roughness Hole Diameter Error and Burr Height in Drilling of 304L Stainless Steel." In Lecture Notes on Multidisciplinary Industrial Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6287-3_9.

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Nguyen, Huu Quang, Manh Cuong Nguyen, Thu Quy Le, et al. "Multi-objective Optimization of PMEDM Process for Minimum Surface Roughness and Maximum Material Removal Speed When Processing SKD11 Steel." In Advances in Engineering Research and Application. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92574-1_66.

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Eliseev, Alexander A., Tatiana A. Kalashnikova, Andrey V. Filippov, and Evgeny A. Kolubaev. "Material Transfer by Friction Stir Processing." In Springer Tracts in Mechanical Engineering. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60124-9_8.

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AbstractMechanical surface hardening processes have long been of interest to science and technology. Today, surface modification technologies have reached a new level. One of them is friction stir processing that refines the grain structure of the material to a submicrocrystalline state. Previously, the severe plastic deformation occurring during processing was mainly described from the standpoint of temperature and deformation, because the process is primarily thermomechanical. Modeling of friction stir welding and processing predicted well the heat generation in a quasi-liquid medium. However, the friction stir process takes place in the solid phase, and therefore the mass transfer issues remained unresolved. The present work develops the concept of adhesive-cohesive mass transfer during which the rotating tool entrains the material due to adhesion, builds up a transfer layer due to cohesion, and then leaves it behind. Thus, the transfer layer thickness is a clear criterion for the mass transfer effectiveness. Here we investigate the effect of the load on the transfer layer and analyze it from the viewpoint of the friction coefficient and heat generation. It is shown that the transfer layer thickness increases with increasing load, reaches a maximum, and then decreases. In so doing, the average moment on the tool and the temperature constantly grow, while the friction coefficient decreases. This means that the mass transfer cannot be fully described in terms of temperature and strain. The given load dependence of the transfer layer thickness is explained by an increase in the cohesion forces with increasing load, and then by a decrease in cohesion due to material overheating. The maximum transfer layer thickness is equal to the feed to rotation rate ratio and is observed at the axial load that causes a stress close to the yield point of the material. Additional plasticization of the material resulting from the acoustoplastic effect induced by ultrasonic treatment slightly reduces the transfer layer thickness, but has almost no effect on the moment, friction coefficient, and temperature. The surface roughness of the processed material is found to have a similar load dependence.

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Escamilla, Indira, Luis Torres, Pedro Perez, and Patricia Zambrano. "A Comparison between Back Propagation and the Maximum Sensibility Neural Network to Surface Roughness Prediction in Machining of Titanium (Ti 6Al 4V) Alloy." In MICAI 2008: Advances in Artificial Intelligence. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-88636-5_95.

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Conference papers on the topic "Maximum height of surface roughness"

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Beamish, David. "Surface Profile - a Comparison of Measurement Methods." In SSPC 2013 Greencoat. SSPC, 2013. https://doi.org/10.5006/s2013-00008.

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Abstract Coating performance is related to the profile height on a steel surface. Three types of devices are available to take measurements of this surface profile: replica tape, depth micrometers fitted with pointed probes, and stylus roughness testers. This paper presents results from a recent analysis of measurements taken by the three device types on steel blasted with an assortment of blast media and proposes a new method of depth micrometer measurement called average of the maximum peaks.

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Wan, C. K., Hongzhe Sun, and Ji-Dong Gu. "Surface Properties of Galvanized Metals and Attachment by the Bacterium Janthinobacterium Lividum." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03567.

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Abstract Atomic Force Microscopy (AFM) is a useful tool for characterizing material surface properties and studying in situ bacterial biofilms formed on metal surfaces. The aims of the present study were to evaluate metal surface roughness after a series of treatments and attachment of the bacterium Janthinobacterium lividum, isolated from a drinking-water catridge, and to establish the relationship between surface treatment and susceptibility to biofilm formation. The four metal coupons used included Al Galvanized 0.3%, 5%, 55% and a pure zinc plate. Our results showed that several roughness

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Cheng, Baofeng, Kenneth Brentner, Yiqiang Han, Jose Palacios, and Philip Morris. "Quantification of Rotor Surface Roughness due to Ice Accretion via Broadband Noise Measurement." In Vertical Flight Society 70th Annual Forum & Technology Display. The Vertical Flight Society, 2014. http://dx.doi.org/10.4050/f-0070-2014-9411.

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The change of rotor broadband noise due to different surface roughness heights is investigated. The goal of the present work is to quantify the surface roughness at the early stage of helicopter rotor ice accretion through acoustic measurement. Proof-of-concept measurements have been performed in the Adverse Environment Rotor Test Stand (AERTS) facility at The Pennsylvania State University to explore the effect of different surface roughness heights on rotor broadband noise. First, sand paper with different grit sizes is applied to the leading edge of the blade to represent different surface r

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Chowdhury, Raghib, and Kiran Bhaganagar. "Effect of Roughness in Lock Exchange Density Currents." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-89263.

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A preliminary analysis has been performed to understand the effect of surface roughness height on the evolution of the density currents generated in lock-exchange mechanism. The results have revealed density currents over rough wall travel at a lower speed compared to those over smooth wall. Further, a regression analysis has revealed that the maximum front velocity varies as e−k, where k is the height of the surface roughness.

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Kumar, Pavan, Satwik Priyadarshi, J. J. Roy, M. K. Samal, P. K. Jain, and Puneet Tandon. "Effect of Tool Shape on Surface Finish of Components Formed Through Incremental Sheet Forming Process." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53282.

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This work explores the effect of tool geometry on surface finish in incremental sheet forming (ISF) process. In the present work, two different tool geometries i.e. hemispherical shaped tool and ellipsoidal shaped tool are considered. Area at tool-sheet contact and scallop height were calculated for both the tool geometries. To assess the effect of tool geometry on the surface finish of the formed components, both analytical and experimental approaches have been used. A test geometry having the shape of frustum of pyramid was considered for the proposed investigation and four surface roughness

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Fujimura, Nao, Takashi Nakamura, and Hiroyuki Oguma. "Application of Surface Roughness Parameters to the Evaluation of Low Cycle Fatigue Damage in Austenitic Stainless Steel." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97887.

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Changes in the surface roughness of SUS316NG during cyclic loadings were investigated, and the relations between those changes and the crack initiation and propagation processes are discussed on the basis of microscopic observations and cellulose acetate replica observations. Strain-controlled fatigue tests were conducted at three constant strain ranges. Surface roughness was measured periodically during the tests, and three roughness parameters were calculated: arithmetic mean roughness Ra, surface profile maximum height Rmax, and maximum valley depth Rv. Until the middle of fatigue life, all

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Matsuda, Hisashi, Fumio Otomo, Hiroyuki Kawagishi, Asako Inomata, Yoshiki Niizeki, and Takashi Sasaki. "Influence of Surface Roughness on Turbine Nozzle Profile Loss and Secondary Loss." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-90828.

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The effects of surface roughness of both nozzle and end-wall on a turbine nozzle performance were investigated experimentally using liner cascade wind tunnel facility under the Reynolds number (Re) condition of Re = 0.3∼1.0 × 106. With buffing, milling, sand blasting and shot blasting, the total of seven levels of the model surface roughness were realized. In order to clarify the effect of the nozzle surface roughness on the profile loss, total pressure losses were measured using three-hole probe for different levels of the surface roughness. It became clear the nozzle profile loss increases a

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Nakane, Motoki, Yun Wang, Hisamitsu Hatoh, Masato Yamamoto, Akihiko Hirano, and Kentaro Hayashi. "Development of New Design Fatigue Curves in Japan: Discussion of Effect of Surface Finish on Fatigue Strength of Nuclear Component Materials." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93167.

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Abstract Based on the world wide fatigue test database, The Design Fatigue Curve (DFC) Phase 1 and 2 subcommittees established in The Japan Welding Engineering Society (JWES) have been developed new design fatigue curves which are applied for the nuclear component materials, in air environment. The effects of the design factor, such as mean stress, size effect and surface finish, etc. on the fatigue curves are also discussed with the fatigue database in order to construct fatigue evaluation method for the new design fatigue curves. The subcommittees also have studied the applicability of newly

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Zhao, J. J., Y. Y. Duan, X. D. Wang, and B. X. Wang. "Characteristics of Extended Evaporating Meniscus on Nanotextured Rough Solid Substrate for Wenzel States." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62867.

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The surface nanostructure determines the system wettability and thus has significant effects on the thin liquid film spreading and phase change heat transfer. A model based on the augmented Young-Laplace equation and kinetic theory was developed to describe the nanoscale roughness effects on the extended evaporating meniscus in a microchannel. The roughness geometries in the model were theoretically related to the disjoining pressure and the thermal resistance across the roughness layer. The results show that the dispersion constant for the disjoining pressure increases with the nanopillar hei

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Miller, Nicholas, Sin Chien Siw, Minking K. Chyu, and Mary Anne Alvin. "Effects of Jet Diameter and Surface Roughness on Internal Cooling With Single Array of Jets." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95400.

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The current study focused on the effects of varying jet diameter and surface roughness on the target plate from jet impingement. A single row of five jets, plenum fed, expels air onto the flat target surface and the spent air is constrained to exit in only one direction, causing the jets to encounter maximum cross-flow. Baseline jet plates were equipped with pressure taps, one for each jet, to determine flow. The initial parameters, diameter D, height to diameter H/D, and jet spacing to diameter S/D is 9.53 mm (0.375 in), 2 and 4 respectively. Upon defining the optimum array of jet diameters,

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Reports on the topic "Maximum height of surface roughness"

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May, David, David Biedenharn, Tate McAlpin, and Ty Wamsley. Hydraulic dike effects investigation on the Mississippi River : Natchez to Baton Rouge. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/40539.

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This report documents an investigation of the hydraulic effects of dikes on water levels in the Mississippi River between Natchez, MS, and Baton Rouge, LA, conducted for the U.S. Army Corps of Engineers, Mississippi Valley Division, Vicksburg, MS. The investigation was conducted using a previously calibrated Natchez-to-Baton Rouge Adaptive Hydraulics numerical model. The objectives were to alter roughness and height variables associated with the dikes and overbanks encompassed in the numerical model and evaluate their effects on water surface elevations. This academic exercise provides an indi

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Berney, Ernest, Andrew Ward, and Dustin Brown. Enhanced Route Reconnaissance—Generation 1. Engineer Research and Development Center (U.S.), 2025. https://doi.org/10.21079/11681/49799.

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The movement of soldiers and materiel across battlespace is critical to a successful military operation. Knowledge of the road network condition ensures safe and successful vehicle maneuver. This research focused on remote assessment of poor-quality paved road networks for vehicle maneuver using data products derived from three-dimensional point clouds. Point clouds were generated from lidar sensors deployed from ground and airborne platforms to enable engineering analysis of the pavement surface. A series of algorithms developed to extract roughness, grade, radius of curvature, and width alon

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Rahman, Shahedur, Rodrigo Salgado, Monica Prezzi, and Peter J. Becker. Improvement of Stiffness and Strength of Backfill Soils Through Optimization of Compaction Procedures and Specifications. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317134.

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Vibration compaction is the most effective way of compacting coarse-grained materials. The effects of vibration frequency and amplitude on the compaction density of different backfill materials commonly used by INDOT (No. 4 natural sand, No. 24 stone sand, and No. 5, No. 8, No. 43 aggregates) were studied in this research. The test materials were characterized based on the particle sizes and morphology parameters using digital image analysis technique. Small-scale laboratory compaction tests were carried out with variable frequency and amplitude of vibrations using vibratory hammer and vibrato

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