Tham khảo tài liệu 'plastics product design part 4', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 100 Plastics Engineered Product Design Axial compression with three shear modes about the axial axis and torsion perpendicular to that axis. This configuration is a combination of Figs. and . For auxiliary generators and compressors any of these configurations would be viable. However each individual application has its own design requirements. One of the parameters to consider when applying an elastic suspension system to an energy-producing device is the degree of motion that will be acceptable to the installation. The performance of elastomers is of major interest and concern to the design engineer. The readily available data concern the tensile-elongation factor the compression set results from durometer tests and information on oil resistance heat aging and the static modulus. In designing for a given environment certain information makes the designer s job easier and the actual results closer to that predicted. These types of data are normally generated at the designer s facility with in-house-developed test equipment and procedures. They include 1 dynamic modulus at various strains frequencies and temperatures 2 ozone resistance at different concentration levels 3 loss factor at various sưains frequencies and temperatures 4 fatigue of various shape factors and cyclic strains and temperatures 5 effects of different ingredients such as carbon black 6 drift and set characteristics at various initial strains and temperatures and 7 electrical resistance. 2 Design Optimization 101 Rapid loading Different behavioral characteristics for a wide range of loading rates have been reviewed. This review concerns load or strain duration that are much shorter than diose reviewed that are usually referred to as being rapid impact loading. They range from a second or less Fig. . There are a number of basic forms of rapid impact loading or impingement on products to which plastics react in a manner different from other materials. These dynamic stresses include .
