Based on the popularity of computer and the adapted Colebrooks formula, in the paper a new equation for pipe-friction head loss is put forward in pipeline.

Nonlinear analysis of finite-length beams on Winkler foundation with horizontal resistance

Nonlinear analysis of beams on elastic foundation with consideration of horizontal resistance

Then the theory of beam on elastic foundation was employed to propose the deformation control differential equation,which could consider the effect of the horizontal resistance between the geocell reinforcement and the foundation soil;and a power series solution for this equation was given.

In order to determine hydraulic friction coefficient of polypropylene pipe(PP-R),a high pressure water column diffuse gage was used to measure the friction loss head of a long straight PPR pipe at different flow rates.

Influence of the frictional resistance for deadline anchor axis on weight indicator accuracy;

Influences of frictional resistance on flow distributions of the dividing and combining manifolds;

A method for lateral buckling analysis of tubing with frictional resistance in deviated wells was presented.

An experimental investigation on the flow and heat transfer of the narrow-gap annular tube vapor generators.Ⅱ.Friction Resistance.;

Based on the analysis of macrostructure and microstructure of the sample after ECAE, the influence of friction resistance between the die wall and the sample on the deformation of the sample billet was discussed.

In daily mine ventilation work,we treat as airway friction resistance factor a constant.

In this paper,the effect of friction force on metal forming parameters has been summarized based on some last research reports.

The paper introduces the method and principle of testing friction force between mould plates and strand on the slab caster.

What s more,the produced friction force and the added moment,which act on the transmission shaft,influence equipment performance and increase equipment load.