做了个草图，难度极大！

fissa

今天做了个草图~· 不规则形~·精度要求真的是奢侈~···昂贵的奢侈！

SJ2.0

怎么是不规则形嗫

arion

考虑过材料之间冷热膨胀系数以及施工温度吗

fissa

arion 发表于 2015-1-11 11:32
考虑过材料之间冷热膨胀系数以及施工温度吗

你是指制作温度还是安装温度？
膨胀率当然有考虑，只是目前没法确定具体数据

fissa

SJ2.0 发表于 2015-1-11 08:54
怎么是不规则形嗫

原厂水道就这样

arion

fissa 发表于 2015-1-11 12:58
你是指制作温度还是安装温度？
膨胀率当然有考虑，只是目前没法确定具体数据

制作温度、安装温度、工作温度，没有材质的膨胀系数怎么考虑公差

fissa

arion 发表于 2015-1-11 13:03
制作温度、安装温度、工作温度，没有材质的膨胀系数怎么考虑公差

其实归根到底就是公差~·这些做机加工没有不考虑的，只是我考虑的是如何获得合适的数据

arion

fissa 发表于 2015-1-11 14:22
其实归根到底就是公差~·这些做机加工没有不考虑的，只是我考虑的是如何获得合适的数据

这些机加工有多少知道材料的变化？你能得到哪些材料？中缸的开放式水道因为温度的变化，尺寸会如何变化？什么材质，什么牌号？温度应力曲线如何？温度公差曲线如何？

fissa

arion 发表于 2015-1-11 15:26
这些机加工有多少知道材料的变化？你能得到哪些材料？中缸的开放式水道因为温度的变化，尺寸会如何变化？ ...

homogeneous state of stress
stress invariant
strain invariant
strain ellipsoid
homogeneous state of strain
equation of strain compatibility
Lame constants
isotropic elasticity
rotating circular disk
wedge
Kelvin problem
Boussinesq problem
Airy stress function
Kolosoff-Muskhelishvili method
Kirchhoff hypothesis
Plate
Rectangular plate
Circular plate
Annular plate  
Stiffened plate,reinforced Plate
Plate of moderate thickness
Stress function of bending
Shallow shell
Revolutionary shell
Spherical shell
Cylindrical shell
Conical shell
Toroidal shell
Closed shell
Corrugated shell
Warping function
semi-inverse method
Rayleigh-Ritz method
Relaxation method
Levy method
Relaxation
Dimensional analysis
self-similarity
Influence surface
Contact stress
Hertz theory
Conforming contact
Sliding contact
Indentation
Anisotropic elasticity
Granular material
Mechanics of granular media
Thermoelasticity
Hyperelasticity
Viscoelasticity
Correspondence principle
Wrinkle
Total theory of plasticity
Microslip
Roughness
Nonlinear elasticity
Large deflection
snap-through
Finite deformation
Green strain
Almansi strain
Dynamic elasticity
Equation of motion
Quasi-static
Aeroelasticity
Hydroelasticity
Flutter
Elastic wave
Simple wave
Cylindrical wave
Horizontal shear wave
Vertical shear wave
body wave
edge effect
Plasticity
Formability
Metal forming
Crashworthiness
Structural crashworthiness
Drawing
Collapse mechanism
Springback
Extrusion
Stamping
Perforation
Spalling
Theory of plasticity
Shake-down theory
kinematic shake-down theorem
Static shake-down theorem
rate dependent theorem
load factor
Loading criterion
Loading function
Loading surface
Plastic loading
Plastic loading wave
Simple loading
Proportional loading
Unloading
Unloading wave
Impulsive load
step load
pulse load
limit load
nentral loading
instability in tension
acceleration wave
constitutive equation
complete solution
nominal stress
over-stress
true stress
equivalent stress
flow stress
stress discontinuity
stress space
principal stress space
hydrostatic state of stress
logarithmic strain
engineering strain
equivalent strain
strain localization
strain rate
strain rate sensitivity
strain space
finite strain
plastic strain increment
accumulated plastic strain
permanent deformation
internal variable strain-softening
rigid-perfectly plastic Material
rigid-plastic material
perfectl plastic material
stability of material
deviatoric tensor of strain
deviatori tensor of stress
spherical tensor of strain
spherical tensor of stress
path-dependency
linear strain-hardening
strain-hardening
kinematic hardening
isotropic hardening
strain-hardening modulus
power hardening
plastic limit bending Moment
plastic limit torque
elastic-plastic bending
elastic-plastic interface
elastic-plastic torsion
Viscoplasticity
limit analysis
limit design
limit surface
upper bound theorem
upper yield point
lower bound theorem
lower yield point
bound theorem
shape factor of cross-section
sand heap analogy
Yield
yield condition
yield criterion
yield function
yield surface
plastic potential
energy absorbing device
energy absorbing device
dynamic plasticity
dynamic plastic buckling
dynamic plastic response
plastic wave
kinematically admissible Field
statically admissible Field
flow rule
velocity discontinuity
slip-lines
slip-lines field
travelling plastic hinge
incremental theory of Plasticity
Mises yield criterion
prandtl- Reuss relation
Tresca yield criterion
Lode stress parameter
Levy-Mises relation
Hencky stress equation
Haigh-Westergaard stress space
Lode strain parameter
Drucker postulate
Geiringer velocity Equationc

我去拧螺丝`` 要研究的一辈子都研究不完
自己用，可能考虑不了那么多，但必须要考虑的我一定会考虑~
今晚拿台发动机备着，以备万一
其实今晚我确实是买了台发动机~分解了慢慢研究吧~·
好在还是有些资料可查，也会和镶缸套的师傅好好聊聊~
不急着装车，但这事我一定会做的，装车再交作业大家指教

fissa

难度确实很大，有许多要考量的~·但，我一定要去做不简单的~·