Bell-shaped vibratory angular rate gyro (abbreviated as BVG) is a new type Coriolis vibratory gyro that was inspired by Chinese traditional clocks. The resonator fuses based on a variable thickness axisymmetric multicurved surface shell. Its characteristics can directly influence the performance of BVG. The BVG structure not only has capabilities of bearing high overload, high impact and, compa...

Stiffness relations for voltage-dependent contact mechanics of piezoelectric material are derived for an indenter of arbitrary planform under normal force, centrally or noncentrally applied, and electric charge distribution at the base. Relations between indentation depth, indentation force, electric potential and electric charge are explicitly given in terms of indenter’s geometry and piezoele...

Luminaire sampling plays an important role in global illumination calculation using Monte Carlo integration. A conventional approach generates samples on the surface of the luminaire, resulting in rendered images with high variance of noise. In this paper, we present an efficient solid angle sampling technique using tunable bounding volumes for global illumination calculation. In contrast to th...

The complex shape dependence of wind pressure’s peak factors (PFs) makes it difficult to predict their values for all geometries by using analytical models. Thus, experimental studies are necessary validate available or new models each specific and geometry. Very little information is in the literature hyperbolic paraboloid geometry, which frequently used cable net membrane roofs that particula...

This paper describes the computation of reachable sets and tubes for linear time-invariant systems with an unknown input bounded by integral quadratic constraints, modeling e.g. delay, rate limiter, or energy bounds. We define a family paraboloidal overapproximations. These paraboloids are supported tube on touching trajectories. Parameters each paraboloid expressed as solution to initial value...

In his book Gaibu kūkan no kōsei (Exterior Space in Architecture), Yoshinobu Ashihara criticized modern architecture and urban planning, searched for ways to realize plazas suitable humans. This study analyzes shows how designed the Komazawa Park Gymnasium — wrestling venue 1964 Tokyo Olympics, Central Plaza. doing so, it focuses on Gymnasium’s distinctive hyperbolic paraboloid shell. Concurren...

This paper presents an analytical and experimental design deployment control analysis of a hyperbolic paraboloid cable net based on clustering actuation strategies. First, the dynamics statics for clustered tensegrity structures (CTS) are given. Then, we propose topology deployable net. The deployability is achieved by using cables. It shown that cables significantly reduce number actuators req...