Coupled Loads Analysis of a Single Stage Launch Vehicle for Vibration Test Level Generation Vikram Sarabhai Space Centre

Format:

Book

Conference/Event

Author/Creator:

Kurudimath, Kottresh Maharudraiah, author.

Jalan, Salil, author.

Rose, Jancy, author.

Conference Name:

AeroCON 2026 (2026-06-04 : Bangalore, India)

Language:

English

Subjects (All):

Launch vehicles.

Engines.

Thrust.

Vibration.

Local Subjects:

Launch vehicles.

Engines.

Thrust.

Vibration.

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2026

Summary:

Gaganyaan is an ambitious and recover safety mission for the Indian space program to launch humans into space. The success of the mission depends on the development of required technology and systems. A test vehicle is developed for the technological demonstration for all envisioned abort flight scenarios of Gaganyaan mission. A new configuration of launch vehicle with single liquid stage is planned for multiple flights. Coupled Loads analysis of launch vehicle system is a standard practice to estimate response and loads for the design of structures and generating sine vibration test levels. Usually a vehicle rests on the launch pad through base shroud with horizontal support and no vertical restraint. Upon ignition of the engine, thrust builds up and upon overcoming gravity the vehicle takes off. In the current analysis the launch vehicle is held in position using a holding / retracting mechanism and at a predefined time the vehicle is released. The boundary condition required a novel method to perform response analysis. The responses estimated from pre-flight analysis is correlated with flight response and a good correlation is observed. Additionally response analysis is performed at engine shut-off. Being the first flight, no flight data was available of engine thrust. In the current work, using an analytical thrust, responses are estimated. The analysis also helped in generating levels for vibration test of various sub-assemblies and payload

Notes:

Vendor supplied data

Access Restriction:

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