Tuesday, December 29, 2009

Re: [Electric Boats] 8.5 KW Mars E-Drive mounting

 

John:
 
I'm not sure if they are used so much to prevent noise and vibration. I often find that my electric propulsion system is too quiet. So much so that I have to lean into the cabin to hear to it or look at the current meter to make sure it is operating. ASMO Marine specifically states that rubber motor mounts should be used in the installation of my Thoosa 9000. So I did. I am not sure of the reason but, suspect there might be considerable torque that can be generated in some operations that's absorbed by the mounts. Another reason to have them is that it would help make aligning the motor and the prop shaft easier. Boats DO move and flex and are not as solid as they appear to be. I'm not an expert an mechanical things as others on this list but, I suspect ASMO had their reasons for installing these mounts. You can see some photo's of my motor mount system here:
http://biankablog.blogspot.com/2009/03/going-electric-part-13-motor-on.html
Anyway that's my comments.
 
Capt. Mike

--- On Mon, 12/28/09, jehutchisonjr <no_reply@yahoogroups.com> wrote:

From: jehutchisonjr <no_reply@yahoogroups.com>
Subject: [Electric Boats] 8.5 KW Mars E-Drive mounting
To: electricboats@yahoogroups.com
Date: Monday, December 28, 2009, 6:40 PM

 
Hello all,
I am installing an E-drive into a 1932 Herreshoff 34' sloop with a displacement of 5500#. I am curious if rubber isolation mounts are necessary to prevent noise and vibration... or can the motor be mounted to a plate attached directly to the heavy oak floors of the boat? With a very solid mount, won't the mass of the boat dampen any vibration? I'm using Thunderstruck' s kit with a 2:1 cog belt reduction.
Any comments or experiences would be appreciated.
Thank you,
John

__._,_.___
.

__,_._,___
Posted by at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)