During the process of studying, I combine the traditional design theory with modern design method to calculate the cutter stress and gain the driving power according the relation of the cutter shape and the soil cutting resistance, and the relation of applied force and counterforce of cutter and soil.
Three-dimensional method (A-T-N scheme) for designing earthing resistance of substation can be more accurately than traditional design, which makes the earthing resistance of substation to satisfy the national standard stipulation of R≤0.5 Ω.
Compared with the conventional design procedure, the proposed method is more convenient and applicable for 30%~80% fractional bandwidth. By means of the new method, the coupled microstrip lines with all-equal width can be used in the design of filters with concise structure.
Based on the theory of reliability design,combined with the conventional design code and the way of common V-belt drive,the authors discuss the reliability design method. of V-belt drive and provide some design examples.
n the basis of theories of reliability design,combining conventional design principle and method of connection of preloading bolts,the authors explored the design method of reliability for connection of preloading bolts subjected to axial load and provided some design examples.
The basical theory of Geometrical planning and its implementation method in engineering machinery is described. Compared with conventional design meth-ods, Geometrical planning,used in spring optimization design of XRC- 1 manriding cars for inclined shafts,increases economy obviously.
Based on the technology of ASP, COM and network database, it puts forward a method for gear network design. An example of gear COM groupware design shows that the method combines the tradition design with network technology and is useful.
Direct against the shortcoming that traditional section model method can't be visual at the same time,on the foundation of the updated contour plane,produce the 3D entity’S model,combine tradition design with technology of the computer to realize CAD.
Germany ancient to rise fort invent metal type printing leave the sign on graphic design with computer with the 15th century, can divide graphic design into 3 stages: Tradition design era, is it design era and figure design era to print.
From the beauty of traditional art form, traditional patterns, traditional characteristics of color and the application of calligraphy and natural materials in packaging design, the values of traditional designing elements which is rich in characteristics of national culture were analyzed.
This article has discussed the characteristics of modern mechanical engineering design and the development trend of CAD, which is very significant in understanding the new trend, development and applying new technology and reform traditional designing mode.
The study indicated that the optimization designing decreased the structural cost comparing with the traditional designing. The optimization method has better foreground in structural design and can be applied in similar structure.
However, the traditional design method is not able to give the real shear resistance of aluminum alloy I-section members.
It is shown that, in the case of devices of traditional design, this adjustment can be accompanied by generation of a correlated (geometric) noise, which essentially deteriorates the resolution capability.
As alternative to traditional design, "sandwich" cyclotron targets consisting of materials with different coefficients of linear thermal expansion are proposed.
The traditional design needs to construct mathematic model of material circuit, which involves large amount of workload and lacks of practicability.
Traditional design formula shows large error for MMI devices based on weakly-restricted waveguide.