Passa ai contenuti principali

Genesis of the WBPP: Wernher von Braun Pijama Party

When the team first joint together at the Korelev Lab of the Delft Aerospace Rocket Society, there was a mixture of tension and excitement in everyone's eyes. As the teams were formed, a thin layer of rivalry and competition appeared. When the member of what then would have been called the WBPP came together, it was clear that everyone was coming from different background having different expertise; would that be enough to achieve the mission? How cultural differences in the team would have been overcame?

What about the name for the team? 


A pyjama party is a festive get together. Depending on your stage in life the association with a pyjama party changes, a change of perspective that also reflects on the life of Wernher von Braun. Wernher von Braun’s Pyjama Party stands for getting new insights during a group process based around a shared goal, but most of all having fun.

Everyone was questioning weather or not the team he/she ended up was the right one and weather the mission could be accomplished in the future. Those teams that did manage to bring the payload back to the ground were seen as invincible: those rockets, which made it in the past, were conserved in the Korelev Lab like ancient god amulets. 
The mission was clear: " Every rocket has to fly to a maximum of 1000 meters mounting an egg as a payload and recovering it completely intact after the touch down".

Easy job for a young team of engineers right? 


Commenti

Post popolari in questo blog

Requirements Generation

Following the system engineering design, the first step to start with the preliminary design of the rocket was understanding the requirements that the mission involved. Generating a requirement list was essential in order to give a more accurate shape to the product we had to obtain. An analysis of the subsystems of the rocket was also made and requirement concerning different subsystems were generated. Requirements List: The maximum flight-time has to be 90 s. This is established by NAVRO which is the association in the Netherlands for amatory rockets. In fact the rocket had to land inside the military area at 't Hard; considering the worse case scenario in terms of wind speed and direction, a maximum time flight was determined considering that the rocket could not go out of the military area in it surely didn't have to fly towards the observatory area. The air space was closed over the military area for the period of duration of the launches. However the maximum ...

Advanced Design Configuration

So where to start building a rocket? Even though a small rocket such as the one the WBPP didn't have many subsystems, we split up the group so that each one of us could look at the requirement and design his subsystem and then present it to the others. However before going too much into the details of the rocket, the software Open Rocket was used to  come up with a first design iteration of our "space" vehicle making sure to meet the requirements given by the safety board. Eventually each subsystem was considered individually and considering load cases, ease of manufacture and systems accessibility before launch design decisions were made.  Open Rocket Estimations The engine file corresponding to the one that our rocket would have mounted was uploaded to the designing file; this would have granted us to have reasonable prediction of the rocket's flight in absence of wind. Since the team opted for a separation of the rocket in two parts at the moment of the parac...

Requirement Analysis and Conceptual Design

The first stage of the design phase was analysing the requirements and understanding how they would have affected the rocket subsystems. The team had to come up with a preliminary design at the end of the first three weeks and present it to the senior members of the society. In this way the design could be reviewed and a check of the progress of the subsystems could be carried out. The first step was sketching and coming up with ideas for the rocket systems; as a matter of fact the WBPP started dividing the rocket in three sections:  Upper section: this section would have contained the payload, and the electronics Middle section: this section was dedicated to the parachute; from the beginning the team opted for an axial recovery system that would split the rocket in two parts.  Lower section: the engine which was already provided and it was not object of the design nor investigation.  Exploration An exploration design process started; considerations and design...