shock loading?

thank you for the def. but if i am using a block & grcs, doesnt every limb or piece of wood shock load untill the ground man begins to lower it? im new, and trying to learn all i can. cant go to school because of current job, so i am learnng from you guys then trying situations out on the wood thanks again.
 
so, i should (depending on the weight of the wood) wrap the rig line around the grcs in a way that will not allow a SUDDEN stop? thanks again for your patience
 
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thank you for the def. but if i am using a block & grcs, doesnt every limb or piece of wood shock load untill the ground man begins to lower it?

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Dynamic loading is a better term than shock loading. Shock has a very technical meaning in physics.

Dynamic loading occurs whenever a rope is used to speed up up of slow down a mass. For instance when catching a falling load or starting to hoist the mass off the ground. When the mass is not moving, it is static, which is less the peak dynamic load. If the mass is moving at a constant rate, to load is the same as static. When you start to lower a mass, the dynamic load will be less than the static load as long as the mass is accelerating.

(I am not an arborist. My background is physics and caving. I lurk here because of an interest in friction hitches.)
 
simply put, let it run and brake it slow.
When you stop it from running or let it run and brake it quickly then the rope, tree and gear get shocked by the sudden action.
There will always be some shock loading but the key is to reduce it.
 
i think "mass not moving is static"; which would be non-dynamic; thus moving is dynamic is pretty good hear.

Shock loading/ dynamic loading/ impact to me is load force (nominal weight force)altered by speed(time:distance manipulations) vs load force altered by leverage(power:distance manipulations). To make a string of multipliers onto raw/nominal load weight force for an 'event' containing a load.

We usually just think of leverage or dynamic loading increase; but, it does really contain all change even less. But still for us in "it is only impact or leverage if it is an increase" mindset from werk; it is a reminder to look someplace else for what is taking on higher loading as the load/rope is taking on less loading as it's equal and opposite, ying/yang partner in change..

i think we should generally look at extended braking, imageries of snubbing out forces/softly handing them off to sum thing else, rather than a focus of stopping them. Also at how to spread out and dissipate the heats of their frictions in this trade, and the guidance it can give. Even if the final snubbing out is into the ground.
 
very good explaination. kinda like if mike tyson hits be, but i am already moving the amount of force transferred to my face is a lesser amount than if i just " man up " and take the hit! enertia? thanks dude.
 
If force is applied, the only power you incurr, is that which you resist, the rest is applied to distance part of the formulae.

Force = Power X Distance; meaning power and Distance ar e reciprocals that make up force; as one increases, the oher decreases, to make the same sum total as was initiated.
 
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Force = Power X Distance; meaning power and Distance ar e reciprocals that make up force; as one increases, the oher decreases, to make the same sum total as was initiated.

[/ QUOTE ]No,
Energy = Force x Distance
Power = Energy / Time
 
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