Abstract : The aerodynamic interference effects on tiltrotor performance in cruise are investigated using comprehensive calculations, to better understand the physics and to quantify the effects on the aircraft design. Performance calculations were conducted for 146,600-lb conventional and quad tiltrotors, which are to cruise at 300 knots at 4000 ft/95 deg F condition. A parametric study was conducted to understand the effects of design parameters on the performance of the aircraft. Aerodynamic interference improves the aircraft lift-to-drag ratio of the baseline conventional tiltrotor. However, interference degrades the aircraft performance of the baseline quad tiltrotor, due mostly to the unfavorable effects from the front wing to the rear wing. A reduction of rotor tip speed increased the aircraft lift-to-drag ratio the most among the design parameters investigated.

Performance and Design Investigation of Heavy Lift Tiltrotor with Aerodynamic Interference Effects

https://ntrs.nasa.gov/api/citations/20180002374/downloads/20180002374.pdf

Stability and Control Derivative Estimation for the Bell-Shaped Lift Distribution

This study aims to improve the two major problems faced by UAVs, short battery life and difficulty detecting hovering, respectively. For the problems mentioned above, this study derives the application of bionic technology and the integration of green energy innovation through systematic innovation theory, designing the operation of UAVs using this research method. The scope includes research on bionic technology, systematic innovation, innovation of unmanned aerial vehicles, and conduct fluid analysis for the output results, watching to confirm the hovering state, and analyzing the battery life to ensure the improvement of power supply, the output, and verification of this research can significantly improve the future development and application of UAVs.

Systematic innovation combined with bionic technology applied to innovative research on UAV

Aerodynamic analysis of bionic winglet- slotted wings

- Security is an important aspect of computing and networking technology. The first and most important aspect of any network design, planning, construction, and operation is the significance of a solid security strategy. Network security is becoming increasingly critical to personal computer users, businesses, and the military. With the introduction of the internet, security has become a big problem. Many security threats were made possible by the internet's structure. Because of the ease with which intellectual property can be obtained via the internet, network security is becoming increasingly important. When an attack is sent via a network, it can take several forms. Knowing the attack mechanisms enables adequate security to evolve. Many businesses protect themselves from the internet by using of Firewalls and encryption methods are examples of security measures. On global networking infrastructures, there is a vast number of personal, commercial, military, and government information, all of which necessitates different security procedures. In this research, we attempt to investigate numerous types of assaults as well as various types of security mechanisms that might be applied based on the network's needs and architecture.

The investigation of network security, including penetration attacks and potential security mechanisms

/pdf/albatross-and-falcon-inspired-bionic-uav-an-aerodynamic-2koulqk7ui.pdf

Sagar Sahu

Papers

Albatross and Falcon inspired Bionic UAV: An Aerodynamic Analysis