## Tag Archives: Gauss

## Random Vibration Analysis – Nastran SOL 111

Introduction Random vibration is motion which is non-deterministic, meaning that future behavior cannot be precisely predicted, and it is a characteristic of the input or excitation. To specific a random vibration is usually is used the ASD (acceleration spectral density). … Continue reading

## Determining Orbital Elements

Interplanetary flight: 1) Introduction 2) Heliocentric Transfer Orbit 3) The Gauss Problem 4) Determining Orbital Elements 5) Hyperbolic Departure and Approach 6) Gravitational Assist Solving the Gauss problem gives us the position and velocity vectors, r and v, of a spacecraft in a heliocentric-ecliptic orbit. From these … Continue reading

## The Gauss Problem

Interplanetary flight: 1) Introduction 2) Heliocentric Transfer Orbit 3) The Gauss Problem 4) Determining Orbital Elements 5) Hyperbolic Departure and Approach 6) Gravitational Assist On New Year’s Day 1801, Giuseppe Piazzi of Italy observed for the first time an object that turned out to … Continue reading