But on the whole, China's equipment manufacturing industry is still at a low level, with a big gap with the developed countries in the world. Mechanical design is the leader of equipment manufacturing and the core link in the process of equipment manufacturing. It is very important to comprehensively improve the design ability and technical level of mechanical designers in China. In recent years, the application and development of various advanced technologies in the mechanical industry are making great changes in the traditional connotation of mechanical design, which puts forward higher requirements for the majority of mechanical designers. On the one hand, the current advanced and modern mechanical equipment is an organic combination of mechanical, electrical, hydraulic and optical technologies, especially the development and application of control technology, information technology and network technology, which makes the equipment more and more intelligent and modern and become a modern machinery. On the other hand, various modern mechanical design methods have broken through the theoretical research stage in previous years and are gradually applied to design and production practice, playing an increasingly important role; In addition, with the continuous improvement of computer hardware performance and software level, computer technology has penetrated into the mechanical field. The wide application of various design techniques, calculation techniques and design tools in mechanical design and manufacturing has liberated the creative thinking of designers as never before, and the design methods are extremely rich.
With these changes, the traditional teaching materials and reference books of mechanical design gradually show many disadvantages, which can not fully meet the actual work needs of mechanical designers in the new period. In view of this situation, Chemical Industry Press complied with the requirements of the development of the times, and on the basis of extensive investigation of scientific researchers and mechanical designers in universities, research institutes and manufacturing enterprises, invited many well-known experts in the field of domestic mechanical design to work together to compile a set of brand-new large-scale reference books-Modern Mechanical Design Manual, which is an innovative project that keeps pace with the times and has great significance, and will play an important role in promoting the development of mechanical design technology in China. Modern Mechanical Design Manual was supported by the National Publishing Fund in 2009 because of its important scientific value, practical value and practical significance in the field of mechanical design.
Chemical Industry Press has a long history and rich experience in publishing large-scale mechanical design reference books, which has won the trust of mechanical designers and engineers. In order to compile and publish the Handbook of Modern Mechanical Design in a solid and efficient way, Chemical Industry Publishing House has organized several meetings for compiling and reviewing manuscripts, fully considered the characteristics and needs of readers in using the handbook, determined the overall framework, title setting, compilation principles and style of the handbook, fully discussed the compilation outline, and made careful arrangements for the writing and reviewing manuscripts, thus ensuring the content quality and work progress of the whole handbook.
The orientation of modern mechanical design manual is different from general technical manual, and it is also different from general learning technical books. It is a comprehensive manual that reasonably collects and sorts out common materials of general mechanical design and conforms to the trend of modern mechanical design. Specifically, it has the following six characteristics.
1. authority
Modern Mechanical Design Manual has a strong lineup, and the editors are mostly from the front lines of design, production, teaching and scientific research, with a profound theoretical foundation and rich design practical experience. Many of them are well-known experts in their fields and have extensive influence and popularity in the industry. He has won many scientific and technological progress awards, invention awards and technical patents, and undertaken many important national scientific research and key projects in the field of machinery. This professional and authoritative editing team ensures the accurate and practical content quality of the manual.
2. Modernity
Pursuing modernity, embodying the atmosphere of modern mechanical design and meeting the requirements of the times are the basic purposes of modern mechanical design manual. The word "modern" is mainly embodied in new standards, new technologies, new structures, new processes, new products, modern design concepts, modern design methods and modern design means. While embodying modern elements, we are not blindly seeking innovation, but collecting mature and practical technologies, methods, structures and products that have been generally recognized by everyone. Modern mechanical design manual pays attention to the integration of traditional design and modern design, the organic combination of electromechanical design, practicality and the latest research and application results.
In terms of new technology, the design content of many components takes into account the design of current high-tech equipment. For example, article 13 "belt chain transmission" introduces new transmission modes such as metal belt, article 14 "gear transmission" includes the design and application of new bevel gears and plastic gears, and article 8 "sliding bearings" includes gas lubricated bearings, foil bearings and electromagnetic bearings. In the application of modern design methods, such as mechanical parts design, pay attention to the application of modern design methods (such as finite element analysis and reliability design) in mechanical parts design, and give corresponding design examples; In 1 1 "mechanism", the motion analysis of planar mechanism is realized by computer programming, and the corresponding program code is provided, which greatly improves the analysis accuracy and design efficiency; In terms of product design and selection, products that are widely used, energy-saving and reliable are recommended. In the implementation of the new standards, the latest national and industry standards were collected and arranged reasonably.
practical
That is, to select and write what mechanical designers actually need. The selection of manual content, depth, materials and chapter arrangement are all based on the actual needs of design and production. For example, the electromechanical control design in the fifth volume is written from the perspective of mechanical designers-focusing on how to choose products, abandoning the basic principles of control, highlighting the design of electromechanical systems, focusing on the technical parameters, performance, application occasions and selection principles of mainstream products in control components, sensors and motors, and giving corresponding design selection examples; The sixth book abandons or simplifies the complicated mathematical derivation in modern mechanical design methods, and highlights the final calculation results. The design method is presented in a popular way with concrete examples, which is convenient for readers to understand and master.
In order to facilitate readers' use and access, the manual adopts a graphic writing style in the expression of specific content. This not only increases the information capacity of the manual, but more importantly, it is convenient for readers to use and consult, which is conducive to improving the work efficiency and design speed of designers.
Step 4 be versatile
This manual focuses on the design and selection of general mechanical parts and control elements, excluding specific professional mechanical design. It mainly includes the basic data of mechanical design, general mechanical parts design, mechanical transmission system design, hydraulic and pneumatic transmission system design and control, mechanism design, frame design, mechanical vibration design, optical, mechanical and electrical integration system design and control design, which can meet the work needs of various mechanical designers.
5. Accuracy (sex)
This manual uses original data as far as possible, with accurate formulas, charts and data, and mature methods, skills and technologies. All standards of products, materials and processes adopt the latest published standard materials. For the compilation of standards and specifications, the manual is not simply copied, but adopts the methods of selection, extraction and reasonable arrangement, emphasizing its scientificity and accuracy, and trying to avoid mistakes and fallacies. All design methods, calculation formulas and parameter selection have been tested for a long time, and design examples and various calculation examples come from engineering practice. The manual contains products with strong versatility and high degree of standardization for designers to choose after understanding the actual production varieties, specifications, technical parameters, product quality and users' actual reflection.
overall
On the one hand, the contents of this manual are selected according to the needs of mechanical designers and the principle of "basic, universal, important and development"; On the other hand, it takes into account the design characteristics of manufacturing enterprises and large design institutes, that is, manufacturing enterprises focus on basic design content, while large design institutes and engineering companies focus on product selection. This manual emphasizes the close combination of product design and process technology, advocates the organic unity of structural design and modeling design, and attaches importance to the reasonable collocation of process technology and selected materials to make product design more comprehensive and feasible.
Over the past three years, through the unremitting efforts of editors and publishers, Modern Mechanical Design Manual will be presented to the vast number of mechanical designers with a brand-new look and distinctive flavor of the times. On the occasion of publication, I would like to express my heartfelt thanks to all the units and friends from all walks of life who have given us strong support!