The method of investigation the non-linear vibrations wheel vehicles with guided cushioning system has been developed. It is based on idea perturbation methods combined theory special periodic Atebfunctions. All these made possible to obtain analytical relations, which describe characteristic features area vibrations. These relations can be basis for creation software product purpose minimize d...

The purpose of this work is to provide support for the design cushioning packaging materials products with unbalanced mass distributions. A mathematical model system established and fourth-order Runge–Kutta method used compare vibration response balanced mass. Finite element simulations are conducted demonstrate feasibility proposed optimizing distributions using various damping materials. simu...

This paper is aimed at proposing a new approach to Reliability-based Design Optimization (RBDO) and applying it cushioning packaging design with highly nonlinear system. The problem formulated as an RBDO problem, which included minimizing cost function probabilistic constraints. Here, the thickness of cushion material dealt uncertainty uncontrolled parameters. traditional reliability index (RIA...

Energy-absorbing materials are widely used under certain high-frequency scenarios, such as cargo packaging or sport protection. Though negative stiffness mechanical metamaterials have many distinctive advantages, fairly low strength and poor specific energy absorption unfortunately limit their present industrial applications. Inspired by the excellent cushioning performance of paw pads mammals,...

BACKGROUND: Nasal reconstruction remains one of the most challenging aspects of facial plastic surgery. Resurfacing of nasal defect should include a consideration of the principle of aesthetic subunits. Nasal defect can be reconstructed by local, regional, and distant flaps and the size and depth of the defects (partial or full thickness) are important for choosing the flap. Although nasolabial...