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Compressor Instability with Integral Methods Episode 1 Part 1

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Tham khảo tài liệu 'compressor instability with integral methods episode 1 part 1', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Chapter 1 Introduction 1.1 Motivation Reams 1939 in his book Modern Blast Cleaning and Ventilation and Rosenberger 1939 in his book Impact Cleaning probably delivered the first serious state-of-the-art reviews about the industrial fundamentals of blast cleaning. They were followed by Plaster 1972 with his two-volume compendium on Blast Cleaning and Allied Processes . In Germany Horowitz 1982 book about Oberflachenbe-handlung mittles Strahlmitteln Surface Treatment with Blasting Media became very popular and is still a widely used reference. Since then 25 years of intense progress in both industrial applications and scientific research have passed. The aim of this book is to provide an extensive up-to-date engineering-based review about the fundamental principles of blast cleaning. This book is concerned with the blast cleaning of metallic substrates prior to the application of protective coatings or adhesives. 1.2 Introductory Remarks From the point of view of the material removal mechanism blast cleaning can be considered to be an erosion process. Erosion as a tribological term is the removal of materials due to the action of impinging solid particles. Erosion is a natural phenomenon the correct designation in terms of geology is corrasion Bates and Jackson 1980 and there exist a number of impressive examples about the material removal capability of natural erosion. One example the erosion of rock columns is illustrated in Fig. 1.1. Blast cleaning is one of the most frequently utilised treatment methods in modern industry. The starting point of the utilisation of blast cleaning for industrial purposes was Tilghman s patent on Improvement in cutting and engraving stone metal glass etc. Tilghman 1870 . Benjamin Chew Tilghman 1821-1901 an American scientist invented the cutting boring grinding dressing pulverizing and engraving stone metal glass wood and other hard or solid substances by means of a stream of sand or grains of quartz or of other suitable materials .