scholarly journals Numerical Simulation of Real-Time Trajectory Optimization for Helicopter Noise Abatement

2010 ◽  
Vol 3 (2) ◽  
pp. 415-430 ◽  
Author(s):  
Hiroshi IKAIDA ◽  
Takeshi TSUCHIYA ◽  
Hirokazu ISHII ◽  
Hiromi GOMI ◽  
Yoshinori OKUNO
Keyword(s):  
Numerical Simulation ◽  
Real Time ◽  
Trajectory Optimization ◽  
Noise Abatement ◽  
Helicopter Noise

scholarly journals Real-Time Trajectory Optimization for Noise Abatement of Helicopter Landings

2011 ◽  
Vol 4 (2) ◽  
pp. 95-110 ◽  
Author(s):  
Takeshi TSUCHIYA ◽  
Hiroshi IKAIDA ◽  
Hirokazu ISHII ◽  
Hiromi GOMI ◽  
Yoshinori OKUNO
Keyword(s):  
Real Time ◽  
Trajectory Optimization ◽  
Noise Abatement

Real-Time Onboard Trajectory Optimization Using Indirect Methods

2021 ◽  
Author(s):  
Sean M. Nolan ◽  
Clayton A. Smith ◽  
Jacob D. Wood
Keyword(s):  
Real Time ◽  
Trajectory Optimization ◽  
Indirect Methods

Structural Stability Analysis of High-Rise Building Transfer Beam High-Formwork Supporting System

2012 ◽  
Vol 151 ◽  
pp. 291-294
Author(s):  
Jian Hua Cui ◽  
Ping Liu
Keyword(s):  
Numerical Simulation ◽  
Stability Analysis ◽  
Theoretical Calculation ◽  
Real Time ◽  
Structural Stability ◽  
Real Time Monitoring ◽  
Supporting System ◽  
High Rise ◽  
High Rise Building ◽  
Integral Stability

Based on the construction of the transfer floor of Yunding project in Chengdu, to solve the issues from the integral stability and safety of the transfer beam high-formwork supporting system, the method of the theoretical calculation, the method of the numerical simulation and real-time monitoring were applied in order to make some conclusions. The conclusions will be significance to apply in the future similar projects for reference and guidance.

A study of azimuthal electromagnetic wave LWD based on self-adaptive hp finite element method

2018 ◽  
Vol 32 (34n36) ◽  
pp. 1840073
Author(s):  
Hui Li ◽  
Yi-Bo Jiang ◽  
Jian-Wen Cai
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Electromagnetic Wave ◽  
Real Time ◽  
Simulation Results ◽  
Peak Value ◽  
Element Method ◽  
Self Adaptive ◽  
Hp Finite Element

Azimuthal electromagnetic wave logging-while-drilling (LWD) technology can detect weak electromagnetic wave signal and realize real-time resistivity imaging. It has great values to reduce drilling cost and increase drilling rate. In this paper, self-adaptive hp finite element method (FEM) has been used to study the azimuthal resistivity LWD responses in different conditions. Numerical simulation results show that amplitude attenuation and phase shift of directional electromagnetic wave signals are closely related to induced magnetic field and azimuthal angle. The peak value and polarity of geological guidance signals can be used to distinguish reservoir interface and achieve real-time geosteering drilling. Numerical simulation results also show the accuracy of the self-adaptive hp FEM and provide physical interpretation of peak value and polarity of the geological guidance signals.

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