This article focuses on the synthesis of a steering mechanism that exactly meets requirements Ackermann geometry. It starts from reviewing four-bar linkage, then discusses number points common linkage could precisely trace at most. After pointing out limits mechanism, this investigates turning geometry for wheels and proposes with incomplete noncircular gears vehicle by transforming criteria into synthesis. The pitch curves, addendum dedendum tooth profiles transition curves are formulated...

This paper proposes an independent suspension whose alignment parameters are theoretically invariable during jounce and rebound. Each kinematic chain of the consists a 3-RRR linkage that could automatically compensate for axial distance change. The motions linkages knuckle investigated from viewpoints screw theory geometry. equivalent torsional stiffness, bending stiffness shear to demonstrate feasibility engineering applications. Research results show this complex has better mechanical...

The rectilinear rear independent suspension investigated in this paper benefits from its excellent kinematic characteristics. Because of the over-constraints as a rigid-flexible coupled multi-body system, elastokinematics are heavily dependent on compliance This proposes an efficient approach to establish elastokinematic model based transfer matrix method. First, overall system equation is established. Then, statics obtained by introducing external loads and expanding equation. Different...

We develop a new approach that integrates empirical estimation and assortment optimization to achieve display personalization for e-commerce platforms. propose two-stage Multinomial Logit (MNL) based consider-then-choose model, which accurately captures the two stages of consumer's decision-making process -- consideration set formation purchase decision given set. To calibrate our we an method using views sales data at aggregate level. The accurate predictions both view counts numbers...

To simulate the heat and mass transfer in real heterogeneous systems, such as metal-production processes lubrication, point-contact condition with formation of narrowly confined liquid film its surrounding meniscus was constructed to study classical microchannel boiling problem this work. Specifically, evaporation diffusion superheated water water/oil droplet geometry were investigated. The emphasis is put on influence contact-line transport behaviors nucleation bubble dynamics meniscus....

Experimental and numerical studies are carried out to examine the moonpool gap resonance for a drillship at both stationary position forward speed conditions. The size draft also changed study their effects phenomenon. An OpenFOAM based CFD model is developed results show good agreement with tests. Both piston sloshing modes resonances clearly observed. shows that frequency RAO of wave elevation inside subject length, drill ship speed. test generally significantly increases in head seas...

This paper proposes a spatial kinematic model of rack-and-pinion steering linkage matching rectilinear suspension system. Minimising the error and avoiding interference between system are used to optimise based on requirements transmission efficiency understeering criterion. Numerical calculation result comparison show advanced performance verify optimisation method. work lays foundation for design

A rectilinear rear independent suspension has a distinct difference from the traditional ones in that its wheel alignment parameters remain invariable theoretical kinematics. However, they change within narrow interval during jounce and rebound when elasticity of parts, especially rubber bushings, is taken into account. With aim investigating compliance suspension, an elastokinematic model established accordance with static equilibrium equations compatibility conditions. The 28 unknowns...

Dynamic time warping (DTW) is one of the most successful methods that addresses challenge measuring discrepancy between two series, which robust to shift and distortion along axis sequence. Based on DTW, we propose a novel loss function for series data called Gumbel-Softmin based fast DTW (GDTW). To best our knowledge, this first differentiable scales linearly with sequence length. The proposed replaces simple minimization operator in so as better integrate acceleration technology. We also...

Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Kao Xu, Lianzhong Chen, Xiang Liu; Experimental numerical studies on heat flux measurements for the new types of calorimeters in supersonic turbulent duct. AIP Conf. Proc. 13 October 2016; 1770 (1): 030001. https://doi.org/10.1063/1.4963943 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends...

Focused on investigation of cracking behaviors tungsten under transient heat flux and its dependence pulse parameters, powder metallurgical pure samples have been tested with 1 ~ 100 pulses intense electron beams (IPEB) at 5 ms 1ms duration. Three types cracks were observed, including primary crack, secondary crack blunt crack. The can be assorted as branch, annular network according to their patterns. Branch formed in the irradiation area center, appeared surrounded area. width increases...

Abstract To achieve the smelting effect of low splash in large and medium-sized converters, jet flow field simulated by compressed air at room temperature is studied oxygen lance (OL) detection experimental system this paper. This paper mainly analyzes variation law velocity geometric axis OL nozzle scalar distribution attenuation isovelocity line different cross sections. The results show that cross-section all nozzles gradually expands with rise position. When hole ratio between 55% 65%,...

Abstract IMPORTANCE Cognitive bias modification (CBM) programs have shown promise in treating psychiatric conditions, but they can be perceived as boring and repetitive. Incorporating gamified designs adaptive algorithms CBM training may address this issue enhance engagement effectiveness. OBJECTIVE To assess the efficacy of an approach (A-ApBM) paradigm with dynamic difficulty adjustments reducing cue-induced craving individuals methamphetamine use history. DESIGN: Randomized controlled...

In order to optimise the internal flow field pulsation characteristics of a cycloidal rotor oil pump, drain structure pressure limiting valve was changed an external structure. The numerical simulation method is used calculate pump with different structures. outlet pulsation, at valve, displacement spool and cavitation are compared analysed. results show that, relative structure, amplitude reduced by 30%, 25%, phenomenon interface between inlet cavity eliminated. bench test carried out...