Type of contact used between engine cylinder block and Cylinder Head bolts for Optistruct Solver

pratik gadve

Hi,

I am using hypermesh v13 and optistruct v13 for bolt pretension analysis (Non linear Quasistatic analysis) for 4 cylinder inline engine. Components consist Cylinder head , head bolts , gasket and Cylinder block. Head bolts are inserted and they pass through cylinder head--gasket--cylinder block. Internal threads are present in block and external threads on bolt. will you please tell which type of contact should be used for contact between cylinder head bolt and cylinder block for optistruct solver ? There must be relative motion between them...right ? please give explaination too so that I can understand.

Altair Forum User

Hi Pratik,

 

Before we would reply to your queries, could you please let us know to which organization are you associated with and update your official email id

 

Thanks,

Vikas

 

pratik gadve

Hi Vikas,

 

I am Post Graduate student worked with ARAI , Pune for my design project over there as part of academic course. Will you help me for above question ?

Altair Forum User

Pratik,

 

Typically this section of the forum is meant for commercial users of HW. We do have a separate section for Global acedamic students. Probably you can use that to post your queries the next time.

 

Let me try to answer to you question for now. Generally, the Gasket and Bolt assembly is driven by a frictional contact analysis.

 

You can define the friction for each contact pair through a PCONT property collector. You can then flag this under PID field of CONTACT card.

 

Hope this helps.

 

 Thanks 

Vikas