The author demonstrates a stable Lagrangian solid modeling method, tracking the interactions of solid mass particles, rather than using a meshed grid. This numerical method avoids the problem of tensile instability often seen with Smooth Particle Applied Mechanics by having the solid particles apply stresses expected with Hooke’s law, as opposed to using a smoothing function for neighboring sol...

Aim at the random problems of flying gangue movement in steeply dipping seam mining, based on the spherical flying gangue movement model, computational formula of collision restitution coefficient was established when flying gangue shocks bottom plate of working face according to the theory of Hertz classical elastic collision; Considering the influences of the randomness such as the density, r...

The author demonstrates a stable Lagrangian solid modeling method, tracking the interactions of solid mass particles rather than using a meshed grid. This numerical method avoids the problem of tensile instability often seen with smooth particle applied mechanics by having the solid particles apply stresses expected with Hooke’s law, as opposed to using a smoothing function for neighboring soli...

– We have investigated both experimentally and theoretically the spreading behavior of latex particles deposited on solid substrates. These particles, which are composed of cross-linked polymer chains, have an intrinsic elastic modulus. We show that the elasticity must be considered to account for the observed contact angle between the particle and the solid substrate, as measured through atomi...

We measure the time change of the contact force F(t) during the impact between very soft gel balls and a rigid substrate. For low-impact velocities Vi, F(t) is single-peak functions as intuitively expected; and the relation between Vi and the peak value Fm [of F(t)] obeys the prediction of the standard theory for the impact in the linear elastic regime (i.e., the Hertz theory). On the other han...

As a key component for transmitting electrical signals, the contact performance of connectors is directly affected by closing amount socket. It urgent to explore relationship between resistance and cylindrical groove electric connectors, as well range when their comprehensive optimal in vibration environments. Based on Hertz theory, long- short-axis parameters elliptical surface were obtained u...

Abstract The paper focuses on local phenomena modelling in the ball-and-socket pivot of tilting pad journal bearings. It provides an in-depth analysis influence nonlinear normal force and friction forces generated dynamic behaviour bearing. Contemporary works often employ Hertz theory, which is valid for non-conformal contacts. This research, however, utilises a conformal sphere-to-sphere conta...

During the operation of a high-speed shear wet granulator, rotation granulation components leads to emergence phenomenon particle breakage, which results in changes size. To simulate breakage process pharmaceutical powder agglomerates Hertz–Mindlin with bonding contact model was designed this study. The effects impeller speed, chopper and time on were then studied. show that formed by particles...