Deletion of Damping matrix

Comment: Damping matrices are discussed in detail in many works on structural mechanics such as http://books.google.co.uk/books?id=bxfQu2g6qWMC&pg=PA203 this.  There are different modes or models of damping and we should expect our article to cover these.  Deletion would be disruptive to this work and contrary to our |editing policy
Stance: keep
Cited policy: Wikipedia:Editing policy (WP:IMPERFECT)