A helical tow model of on-line curing of thermoset composites in winding is developed and solved numerically. Actual shape of tow in winding process is considered, and consequently, the modeling of the on-line curing process is more realistic. A numerical grid generation method is developed for the complicated geometry. Transformations of three-dimensional energy equation and its boundary condi...

In recent years, more and more automobile producers adopted the supermarketconcept to enable a exible and reliable Just-in-Time (JIT) part supply of their mixed-model assembly lines. Within this concept, a supermarket is a decentralized in-house logistics area where parts are intermediately stored and then loaded on small tow trains. These tow trains travel across the shop oor on speci c routes...

The suitable preload design of cylindrical roller bearing with triple-lobe raceway can avoid effectively sliding damage. To realize the characteristics analysis bearing, quasi-static numerical model is established and solved by improved Newton-Raphson method. Taking a as an example, effects mounting radial clearance, outer waveform value, load rotational speed on maximum contact are analyzed. r...

15and 9-channel FM/FM physiological/force-field telemetry data acquisition systems utilizing microminiaturized signal conditioning modules, IRIG subcarrier oscillators and 220 or 1485.5 MHz transmitters have been utilized to monitor the responses of military test parachutists throughout intentional free-fall parachuting and continuously during highspeed (110-150 KIAS) through-the-air-tow by C-1...

An elastically deformable bearing ring is investigated. The piezo-actuated shaping of the elastic as well journal motion are coupled and determine height lubrication gap which takes a crucial part in theory hydrodynamic lubrication. influence active-dynamic on rotor dynamic behaviour has been investigated [1], especially for two-lobe bearing. present investigations aiming at active-static ring,...

This article develops the point that incentive and risk-bearing problems associated with contractual holdup may justify legal intervention. Contractual holdup is considered both for fresh contracts and for modifications of contracts. One type of legal intervention is flat voiding of contracts. Such intervention tends to be advantageous when holdup situations are engineered. Another type of inte...

This paper presents an agent-based model to analyze tow-away policy in a local community. We will focus on such a situation that (1) Outsiders of a local community make illegal parking in the residential area; (2) The habitants of the community must develop their tow-away policy; (3) They can form a policy group to stress both the outsiders and the local government; and (4) The local government...

This paper is concerned with modelling damage and fracture in woven fabric CFRP single-lap bolted joints that fail by net-tension. The approach is based on the assumption that damage (matrix cracking, delamination and fibre tow fracture) initiates and propagates from the hole in a self-similar fashion. A traction-separation law (based on physically meaningful material parameters) is implemented...

A novel acoustic sensor is described that utilizes two coincident, distributed, shaded PVDF piezopolymer sensors to provide high-resolution acoustic source bearing estimates. Sensor shading is accomplished by shaping the charge collection electrodes deposited on the sensing layer. When these two sensor shadings are matched via a derivative in space, the ratio of their signal outputs is linearly...