Abstract
The purpose of this study is to improve the facilities of BDSP into a more convenient one. As regards the first improvement, we have introduced a high-speed calculation method with a fluid line algorithm using a recursive formula. The recursive formula was derived analytically from each of the modal approximation models of the fluid rigid lines and fluid viscoelastic lines. As regards the second improvement, we have introduced a method for simulating the dynamic responses at the arbitrary position of the fluid line, in stead of the conventional method that allows calculation only at both ends of the fluid line. It could be verified in this study that simulation could be done much faster compared with the conventional ones, without any decrease in accuracy. Consequently, BDSP may be concluded to be a convenient and accurate tool for carrying out hydraulic system simulations.
